ClassID:

91771

C07C51/252 - CPC Classification

Classification description:

Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring of propene, butenes, acrolein or methacrolein

Recent Application in this class:
#1
20260145162
2026-05-28

DEHYDRATION CATALYSTS FOR ACROLEIN PRODUCTION FROM GLYCEROL AND METHODS FOR FORMING THE SAME

#2
20260097375
2026-04-09

ACROLEIN AND/OR ACRYLIC ACID PRODUCTION FROM PROPYLENE WITH REDUCED AMOUNT OF HIGH BOILING POINT BYPRODUCTS

#3
20260015308
2026-01-15

PROCESS FOR CONCURRENT METHYL METHACRYLATE AND METHACRYLIC ACID PRODUCTION

#4
20250368557
2025-12-04

PROCESS AND PLANT FOR TREATMENT OF WASTEWATER STREAM FROM ACRYLIC ACID AND/OR ACRYLATE PRODUCTION PLANT

#5
20250196112
2025-06-19

CATALYST FOR PRODUCING (METH)ACRYLIC ACID, AND METHOD FOR PRODUCING CATALYST FOR PRODUCING (METH)ACRYLIC ACID

#6
20250162970
2025-05-22

SEPARATION OF ACRYLIC ACID WITH THE AID OF MEMBRANE CONTACTORS

#7
20250074858
2025-03-06

TWO-STAGE PREPARATION PROCESS FOR ?,?-ETHYLENICALLY UNSATURATED CARBOXYLIC ACIDS AND PLANT FOR THE PURPOSE

#8
20250025862
2025-01-23

CATALYST, AND METHOD FOR PRODUCING COMPOUND USING SAME

#9
20240424466
2024-12-26

PROCESS FOR SHUTTING-DOWN AND HEATING UP A TUBULAR REACTOR FOR A CATALYTIC GAS PHASE REACTION

#10
20240351008
2024-10-24

CATALYST, AND METHOD FOR PRODUCING COMPOUND USING SAME

#11
20240343667
2024-10-17

PROCESS FOR PREPARING ACRYLIC ACID

#12
20240308949
2024-09-19

LIQUID-PHASE OXIDATION OF METHACROLEIN WITH GOLD BASED CATALYSTS

#13
20240286065
2024-08-29

TANK USED IN REFINING DEVICE

#14
20240278222
2024-08-22

SHAPED CATALYST BODY WITH IMPROVED PROPERTIES, ITS PREPARATION AND USE

#15
20240228417
2024-07-11

PRODUCTION OF ACROLEIN OR ACRYLIC ACID FROM ISO-PROPANOL WITH HIGH YEILD AND LOW COST

#16
20240144465
2024-05-02

METHOD FOR MONITORING A TUBE SHEET OF A HEAT EXCHANGER

#17
20240132433
2024-04-25

PRODUCTION OF ACROLEIN OR ACRYLIC ACID FROM ISO-PROPANOL WITH HIGH YEILD AND LOW COST

#18
20240043365
2024-02-08

LIQUID-PHASE OXIDATION OF ACROLEIN WITH GOLD BASED CATALYSTS

#19
20230219070
2023-07-13

Catalyst and catalyst group

#20
20230124059
2023-04-20

Safe method for tandem C-4 oxidation to methacrylic acid

#21
20230080750
2023-03-16

Process for producing methacrylic acid or methacrylic acid esters

#22
20230027797
2023-01-26

METHOD FOR PRODUCING ISOBUTYLENE, METHOD FOR PRODUCING METHACRYLIC ACID, AND METHOD FOR PRODUCING METHYL METHACRYLATE

#23
20230001390
2023-01-05

MANUFACTURING METHOD FOR MOLYBDENUM-BISMUTH COMPOSITE METAL OXIDE

#24
20220402849
2022-12-22

METHOD FOR PRODUCING ACRYLIC ACID

#25
20220387976
2022-12-08

Catalyst

#26
20220305481
2022-09-29

METHOD FOR PRODUCING CATALYST FOR PRODUCTION OF METHACRYLIC ACID, METHOD FOR PRODUCING METHACRYLIC ACID, METHOD FOR PRODUCING METHACRYLIC ACID ESTER, AND APPARATUS FOR PRODUCING CATALYST FOR PRODUCTION OF METHACRYLIC ACID

#27
20220289658
2022-09-15

METHOD FOR PRODUCING (METH)ACROLEIN AND METHOD FOR PRODUCING (METH)ACRYLIC ACID

#28
20220274905
2022-09-01

PRODUCTION OF ACROLEIN OR ACRYLIC ACID FROM ALLYL ALCOHOL WITH HIGH YIELD AND LOW IMPURITY

#29
20220204436
2022-06-30

Process for producing alkyl methacrylates and optionally methacrylic acid

#30
20220177401
2022-06-09

Method for producing a catalyst for unsaturated carboxylic acid synthesis

#31
20210403404
2021-12-30

Process for preparing methacrolein

#32
20210395107
2021-12-23

PURIFICATION OF AQUEOUS SOLUTIONS CONTAINING FORMALDEHYDE AND USE OF THE PURIFIED SOLUTION IN AN ACRYLIC ACID PRODUCTION PROCESS

#33
20210346869
2021-11-11

Molybdenum-vanadium-niobium-ceria-based catalyst for oxidative dehydrogenation of alkanes and/or alkene oxidation

#34
20210317064
2021-10-14

Process for producing methacrylic acid or methacrylic acid esters

#35
20210078929
2021-03-18

(Meth)acrolein oxidation catalyst and preparation method thereof

#36
20200407306
2020-12-31

Method for preparing acrylic acid

#37
20200157032
2020-05-21

Process for preparing methacrolein

#38
20200139349
2020-05-07

Synthesis of a MoVNbTe catalyst having an increased specific surface and higher activity for the oxidative dehydrogenation of ethane to ethylene

#39
20200115311
2020-04-16

Process for purifying (meth)acrylic acid including a dividing-wall distillation column

#40
20200095306
2020-03-26

Prevention of tissue ischemia and related methods

#41
20200016577
2020-01-16

Catalyst and catalyst group

#42
20190201862
2019-07-04

Shell and tube oxidation reactor with improved resistance to fouling

#43
20190194114
2019-06-27

Process for Pd-catalyzed hydroxycarbonylation of diisobutene: ligand/Pd ratio

#44
20190161427
2019-05-30

Process of alkane oxidative dehydrogenation and/or alkene oxidation

#45
20190151835
2019-05-23

Catalyst, acrylic acid production method, and catalyst production method

#46
20190112252
2019-04-18

Methods for using macroporous inert materials in monomer production

#47
20190092713
2019-03-28

Method for producing unsaturated aldehyde and unsaturated carboxylic acid

#48
20190060884
2019-02-28

Method for preparing catalyst

#49
20190054454
2019-02-21

MECHANICALLY STRONG CATALYST AND CATALYST CARRIER, ITS PREPARATION, AND ITS USE

#50
20190023640
2019-01-24

Production of products from natural resources

#51
20180273460
2018-09-27

Method for preparing acrylic acid from glycerin

#52
20180244597
2018-08-30

Method of determining the inertness of materials for use in monomer production

#53
20180237373
2018-08-23

Method of determining the inertness of materials for use in monomer production

#54
20180207617
2018-07-26

Method for preparing mixed metal oxide catalysts containing molybdenum and bismuth

#55
20180133699
2018-05-17

MIXED METAL OXIDE AMMOXIDATION CATALYSTS

#56
20180079706
2018-03-22

Process for producing (meth)acrylic acid

#57
20180078919
2018-03-22

Shell and tube oxidation reactor with improved resistance to fouling

#58
20180029018
2018-02-01

Catalyst for manufacturing unsaturated aldehyde and/or unsaturated carboxylic acid and manufacturing method of same, and manufacturing method of unsaturated aldehyde and/or unsaturated carboxylic acid

#59
20170305830
2017-10-26

Optimized process for preparing methacrylic acid

#60
20170283358
2017-10-05

(Meth)acrylic acid production process

#61
20170283357
2017-10-05

Acrylic acid production equipment, method for producing acrylic acid, and method for stopping production of acrylic acid in said method for producing acrylic acid

#62
20170166507
2017-06-15

Method for the production of bio-sourced acrylic acid

#63
20170129844
2017-05-11

Method for producing isobutylene, method for producing methacrylic acid, and method for producing methyl methacrylate

#64
20170036982
2017-02-09

Process for production of acrylic acid

#65
20160304432
2016-10-20

Alkane oxidative dehydrogenation and/or alkene oxidation

#66
20160304414
2016-10-20

Alkane oxidative dehydrogenation and/or alkene oxidation

#67
20160303532
2016-10-20

Shell and tube oxidation reactor with improved resistance to fouling

#68
20160289155
2016-10-06

Processes for making methacrylic acid

#69
20160279587
2016-09-29

Packing for reaction tube, reaction tube, and reaction method using same

#70
20160264504
2016-09-15

Method for producing (meth)acrylic acid

#71
20160257637
2016-09-08

Process for preparing acrylic acid

#72
20160244393
2016-08-25

Method for producing unsaturated carboxylic acid and supported catalyst

#73
20160222097
2016-08-04

Prevention of tissue ischemia and related methods

#74
20160184807
2016-06-30

Heteropolyacid salt catalysts and their preparation method

#75
20160176798
2016-06-23

Separation of propionic acid from acrylic acid

#76
20160175817
2016-06-23

Mixed metal oxide ammoxidation catalysts

#77
20160145181
2016-05-26

Method for producing unsaturated aldehyde and/or unsaturated carboxylic acid

#78
20160145180
2016-05-26

Method for producing unsaturated aldehyde and/or unsaturated carboxylic acid

#79
20160107968
2016-04-21

Method for producing acrolein

#80
20160096796
2016-04-07

Production of products from natural resources

#81
20160059220
2016-03-03

Catalyst for producing unsaturated aldehyde and/or unsaturated carboxylic acid, method for producing the catalyst, and method for producing unsaturated aldehyde and/or unsaturated carboxylic acid using the catalyst

#82
20160059218
2016-03-03

Catalyst for producing unsaturated aldehyde and/or unsaturated carboxylic acid, method for producing same, and method for producing unsaturated aldehyde and/or unsaturated carboxylic acid

#83
20160051970
2016-02-25

Catalyst For Producing Methacrylic Acid And Method For Producing The Same, And Method For Producing Methacrylic Acid

#84
20160051968
2016-02-25

Catalyst for conversion of propylene to product comprising a carboxylic acid moiety

#85
20160031786
2016-02-04

Process for preparation of methacrylic acid and methacrylic acid esters

#86
20160023981
2016-01-28

Production of acrylic acid and ethanol from carbonaceous materials

#87
20160001270
2016-01-07

Catalyst for preparing acrolein and acrylic acid, and preparation method thereof

#88
20150367329
2015-12-24

RING-SHAPED CATALYST FOR PREPARING ACROLEIN AND ACRYLIC ACID, AND USE THEREOF (As Amended)

#89
20150361007
2015-12-17

Method for producing an olefin by catalytic conversion of at least one alcohol

#90
20150360191
2015-12-17

Plant and process for performance of heterogeneously catalyzed gas phase reactions

#91
20150344393
2015-12-03

Production of acrylic acid

#92
20150328611
2015-11-19

Multi-tubular reactor and multi-tubular reactor design and fabrication method

#93
20150321178
2015-11-12

Silica-based material and process for producing the same, noble metal supported material and process for producing carboxylic acids by using the same as catalyst

#94
20150299347
2015-10-22

Method for producing superabsorbers based on renewable raw materials

#95
20150274629
2015-10-01

Process for recharging the reaction tubes of a tube bundle reactor with a new fixed catalyst bed

#96
20150274626
2015-10-01

METHOD FOR PRODUCING METHACROLEIN AND METHACRYLIC ACID

#97
20150246343
2015-09-03

Oxidation catalyst with saddle-shaped support body

#98
20150218077
2015-08-06

Processes for making methacrylic acid

#99
20150133687
2015-05-14

Process for preparing an unsaturated aldehyde and/or an unsaturated carboxylic acid

#100
20150133686
2015-05-14

Mechanically stable hollow cylindrical shaped catalyst bodies for gas phase oxidation of an alkene to an unsaturated aldehyde and/or an unsaturated carboxylic acid

#101
20150126774
2015-05-07

Process for producing shaped catalyst and process for producing diene or unsaturated aldehyde and/or unsaturated carboxylic acid using the shaped catalyst

#102
20150105586
2015-04-16

Production of acrylic acid from a methane conversion process

#103
20150105583
2015-04-16

Catalyst For Methacrylic Acid Production, Process For Producing The Same, And Process For Producing Methacrylic Acid Using The Catalyst

#104
20150080605
2015-03-19

Catalyst for preparation of an unsaturated carboxylic acid by gas phase oxidation of an unsaturated aldehyde

#105
20150057464
2015-02-26

Method for producing acrylic acid with a fixed-bed multitubular reactor

#106
20150045581
2015-02-12

Method for producing acrolein and acrylic acid with a fixed-bed multitubular reactor

#107
20150005526
2015-01-01

Catalyst and process for preparing acrolein and/or acrylic acid by dehydration reaction of glycerin

#108
20140357890
2014-12-04

Method for producing -butanol from isobutanol, method for producing methacrolein and methacrylic acid from isobutanol, and apparatus for producing them

#109
20140356918
2014-12-04

Process for synthesizing bifunctional hydrocarbon-based compounds from biomass

#110
20140350298
2014-11-27

Process for the (AMM)oxidation of lower molecular weight alkanes and alkenes

#111
20140350282
2014-11-27

Pre calcination additives for mixed metal oxide ammoxidation catalysts

#112
20140336411
2014-11-13

Catalyst for the oxidation of hydrocarbons consisting of molybdenum, vanadium, niobium, tellurium, manganese and cobalt

#113
20140316160
2014-10-23

Catalyst for methacrylic acid production and process for producing methacrylic acid

#114
20140303338
2014-10-09

Process for producing acrolein, acrylic acid and derivatives thereof

#115
20140243554
2014-08-28

Method for preparing acrylic acid from propane and propylene

#116
20140221683
2014-08-07

Process for producing a catalytically active composition being a mixture of a multielement oxide comprising the elements Mo and V and at least one oxide of molybdenum

#117
20140213811
2014-07-31

Process of dehydration reactions

#118
20140155650
2014-06-05

Production of acrylic acid and ethanol from carbonaceous materials

#119
20140105792
2014-04-17

Process for continuous recovering (meth) acrylic acid and apparatus for the process

#120
20140046093
2014-02-13

Process for charging a longitudinal section of a catalyst tube

#121
20140039213
2014-02-06

Process for producing geometric shaped catalyst bodies

#122
20140018572
2014-01-16

Process for heterogeneously catalyzed gas phase partial oxidation of (meth)acrolein to (meth)acrylic acid

#123
20130338378
2013-12-19

Shaped catalyst body for flow-through fixed-bed reactors

#124
20130310604
2013-11-21

Process for producing unsaturated aldehyde and/or unsaturated carboxylic acid

#125
20130274508
2013-10-17

Shell and tube oxidation reactor with improved resistance to fouling

#126
20130261335
2013-10-03

Process for producing alkyl methacrylate

#127
20130253223
2013-09-26

Catalyst for producing unsaturated carboxylic acid and a process for producing unsaturated carboxylic acid using the catalyst

#128
20130204030
2013-08-08

Method for producing catalyst

#129
20130172615
2013-07-04

Catalyst for producing unsaturated aldehyde and/or unsaturated carboxylic acid, and process for producing unsaturated aldehyde and/or unsaturated carboxylic acid using the catalyst

#130
20130172599
2013-07-04

Silica-based material and process for producing the same, noble metal supported material and process for producing carboxylic acids by using the same as catalyst

#131
20130066100
2013-03-14

PROCESS FOR PREPARING CATALYST USED IN PRODUCTION OF UNSATURATED ALDEHYDE AND/OR UNSATURATED CARBOXYLIC ACID BY DEHYDRATION REACTION OF GLYCERIN, AND CATALYST OBTAINED

#132
20130053595
2013-02-28

CATALYST AND PROCESS FOR PREPARING ACROLEIN AND/OR ACRYLIC ACID BY DEHYDRATION REACTION OF GLYCERIN

#133
20130006009
2013-01-03

Process for continuously producing geometric shaped catalyst bodies K

#134
20130005925
2013-01-03

Aqueous solution comprising acrylic acid and the conjugate base thereof

#135
20120330058
2012-12-27

Process for manufacturing acrolein and/or acrylic acid from glycerol

#136
20120329638
2012-12-27

Method For Manufacturing Catalyst From Recovered Catalyst

#137
20120302797
2012-11-29

Process for manufacturing acrolein and/or acrylic acid from glycerol

#138
20120296108
2012-11-22

PROCESS FOR PRODUCING GEOMETRIC SHAPED CATALYST BODIES

#139
20120295957
2012-11-22

Prevention of tissue ischemia and related compositions

#140
20120295956
2012-11-22

Prevention of tissue ischemia and related methods

#141
20120289741
2012-11-15

Method for producing catalyst for use in production of unsaturated aldehyde and/or unsaturated carboxylic acid, and method for producing unsaturated aldehyde and/or unsaturated carboxylic acid

#142
20120283088
2012-11-08

Mixed Oxide Catalysts Made of Hollow Shapes

#143
20120184771
2012-07-19

Method for producing unsaturated aldehyde and unsaturated carboxylic acid

#144
20120135856
2012-05-31

Process for regenerating a deactivated heteropolymolybdophosphoric acid catalyst

#145
20120108767
2012-05-03

Process for producing bio-resourced polymer-grade acrylic acid from glycerol

#146
20120065427
2012-03-15

Process for producing catalyst for methacrylic acid production and process for producing methacrylic acid

#147
20120053363
2012-03-01

Palladium-containing catalyst, method for producing same, and method for producing α, β-unsaturated carboxylic acid

#148
20120022291
2012-01-26

CATALYST FOR PRODUCTION OF ACROLEIN AND ACRYLIC ACID BY MEANS OF DEHYDRATION REACTION OF GLYCERIN, AND PROCESS FOR PRODUCING SAME

#149
20120016159
2012-01-19

Catalyst for oxidation of saturated and unsaturated aldehydes to unsaturated carboxylic acid, method of making and method of using thereof

#150
20110301316
2011-12-08

METHOD FOR MANUFACTURING BIOMASS-DERIVED METHYL METHACRYLATE

#151
20110263415
2011-10-27

Mixed oxide catalysts for catalytic gas phase oxidation

#152
20110245535
2011-10-06

Multi-metal oxide catalyst and method for producing (meth)acrylic acid by using the same

#153
20110243806
2011-10-06

Multi-metal oxide catalyst and method for producing (meth)acrylic acid by using the same

#154
20110237828
2011-09-29

ACROLEIN PRODUCTION METHOD AND ACRYLIC ACID PRODUCTION METHOD

#155
20110190464
2011-08-04

METHOD FOR THE SYNTHESIS OF BIORESOURCED ACRYLIC ACID ESTERS

#156
20110178331
2011-07-21

Oxide catalyst, process for producing acrolein or acrylic acid and process for producing water-absorbent resin

#157
20110166384
2011-07-07

CATALYST FOR PRODUCING ACRYLIC ACID AND PROCESS FOR PRODUCING ACRYLIC ACID USING THE CATALYST

#158
20110166304
2011-07-07

Use of foam bodies in oxidation reactors for preparing unsaturated aldehydes or carboxylic acids

#159
20110144356
2011-06-16

Flow reactors for chemical conversions with heterogeneous catalysts

#160
20110144294
2011-06-16

Water-absorbing polymer structures based on renewable raw materials and process for their production by dehydration

#161
20110143931
2011-06-16

Methods for making catalysts for methacrolein oxidation

#162
20110137078
2011-06-09

Catalyst And Method For Producing Unsaturated Aldehyde And Unsaturated Carboxylic Acid

#163
20110112325
2011-05-12

CATALYST FOR PRODUCING ACROLEIN AND/OR ACRYLIC ACID AND PROCESS FOR PRODUCING ACROLEIN AND/OR ACRYLIC ACID USING THE CATALYST

#164
20110105784
2011-05-05

Multi-staged catalyst systems and process for converting alkanes to alkenes and to their corresponding oxygenated products

#165
20110092734
2011-04-21

Method for the production of nanocrystalline bismuth-molybdenum mixed oxide

#166
20110082315
2011-04-07

Palladium-containing catalyst, method for producing same, and method for producing α,β-unsaturated carboxylic acid

#167
20110077148
2011-03-31

Process for producing complex oxide catalyst

#168
20110065953
2011-03-17

Process for the long-term operation of a heterogeneously catalyzed partial gas phase oxidation of an organic starting compound

#169
20110036704
2011-02-17

PROCESS FOR REMOVAL OF ACRYLIC ACID FROM THE PRODUCT GAS MIXTURE OF A HETEROGENEOUSLY CATALYZED PARTIAL GAS PHASE OXIDATION OF AT LEAST ONE C3 PRECURSOR COMPOUND

#170
20110017348
2011-01-27

METHOD OF LOADING SOLID PARTICLES INTO A FIXED-BED MULTITUBULAR REACTOR

#171
20110015432
2011-01-20

Process for producing acrolein and/or acrylic acid

#172
20110008218
2011-01-13

Method of producing unsaturated acid from olefin

#173
20100324331
2010-12-23

MIXED OXIDE CATALYSTS MADE OF HOLLOW SHAPES

#174
20100324326
2010-12-23

Mixed metal oxide catalysts and processes for their preparation and use

#175
20100323882
2010-12-23

Methods for preparing catalysts for methacrolein oxidation

#176
20100323879
2010-12-23

METHOD FOR REGENERATING PALLADIUM-CONTAINING METAL SUPPORTED CATALYST, PALLADIUM-CONTAINING METAL SUPPORTED CATALYST AND METHOD FOR PRODUCING THE SAME

#177
20100298601
2010-11-25

Catalyst System, Oxidation Reactor Containing The Same, And Preparation Method For Acrolein And Acrylic Acid Using The Same

#178
20100286461
2010-11-11

Reactor for continuous heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated

#179
20100286450
2010-11-11

Mixed oxide catalysts for catalytic gas phase oxidation

#180
20100280269
2010-11-04

Method for production of acrylic acid

#181
20100273970
2010-10-28

Process for preparation of high purity methacrylic acid

#182
20100249455
2010-09-30

Process for producing acrolein and acrylic acid

#183
20100249454
2010-09-30

Process for producing acrylic acid

#184
20100240925
2010-09-23

Methods for making unsaturated acids using catalysts for methacrolein oxidation

#185
20100204502
2010-08-12

Process for manufacturing acrolein from glycerol

#186
20100174112
2010-07-08

Process for producing acrylic acid

#187
20100168472
2010-07-01

Process for production of acrolein from glycerol

#188
20100168471
2010-07-01

Method for preparing acrylic acid from glycerol

#189
20100152475
2010-06-17

Process for continuously producing geometric shaped catalyst bodies K

#190
20100144931
2010-06-10

Process for preparation of methyl metharylate using recycled methanol

#191
20100137638
2010-06-03

Method for producing alpha, beta-unsaturated calboxylic acid

#192
20100130778
2010-05-27

Method for producing (meth)acrylic acid

#193
20100130777
2010-05-27

PROCESS FOR PRODUCING ACRYLIC ACID BY TWO-STAGE CATALYTIC VAPOR-PHASE OXIDATION

#194
20100130648
2010-05-27

Process for preparation of methyl methacrylate by esterification during oxidation

#195
20100121007
2010-05-13

Catalyst for producing of acrylic acid, method for producing acrylic acid using the catalyst and method for producing water-absorbent resin using the acrylic acid

#196
20100120949
2010-05-13

Use of a feed compositions in preparation of methacrylic acid by oxidation

#197
20100092467
2010-04-15

Prevention of tissue ischemia, related methods and compositions

#198
20100087663
2010-04-08

POLYNARY METAL VANADIUM OXIDE PHOSPHATE

#199
20100069660
2010-03-18

Process for producing geometric shaped catalyst bodies

#200
20100069659
2010-03-18

Process for producing geometric shaped catalyst bodies

#201
20100069583
2010-03-18

PROCESS FOR PRODUCING ACRYLIC ACID, APPARATUS FOR PRODUCING ACRYLIC ACID, AND COMPOSITION FOR PRODUCING ACRYLIC ACID

#202
20100069230
2010-03-18

Heteropoly acid catalyst and method of preparing the same

#203
20100063233
2010-03-11

Method for producing acrylic acid

#204
20100036157
2010-02-11

Method for preparing unsaturated aldehyde and/or unsaturated fatty acid using fixed-bed catalytic partial oxidation reactor

#205
20100029975
2010-02-04

Integrated process for preparing a carboxylic acid from an alkane

#206
20100022734
2010-01-28

Process for separating acrylic acid present as a main constituent and glyoxal present as a by-product in a product gas mixture of a partial heterogeneously catalyzed gas phase oxidation of a C3 precursor compound of acrylic acid

#207
20100015017
2010-01-21

METHOD OF PRODUCING UNSATURATED ACID IN FIXED-BED CATALYTIC PARTIAL OXIDATION REACTOR WITH HIGH EFFICIENCY

#208
20090299094
2009-12-03

PROCESS FOR PRODUCING ALPHA, BETA-UNSATURATED CARBOXYLIC ACID

#209
20090292086
2009-11-26

Multi-metal oxide catalyst and method for producing (meth)acrylic acid by using the same

#210
20090287018
2009-11-19

Method for producing catalyst for use in production of unsaturated aldehyde and/or unsaturated carboxylic acid, and method for producing unsaturated aldehyde and/or unsaturated carboxylic acid

#211
20090259070
2009-10-15

METHOD FOR REGENERATING CATALYST FOR THE PRODUCTION OF METHACRYLIC ACID AND PROCESS FOR PREPARING METHACRYLIC ACID

#212
20090247787
2009-10-01

Method of producing unsaturated aldehyde and/or unsaturated acid

#213
20090239995
2009-09-24

Acrylic acid and water-absorbing polymer structures based on renewable raw materials and process for their production by dehydration

#214
20090234158
2009-09-17

Catalyst for use in production of methacrylic acid and method for manufacturing the same

#215
20090221847
2009-09-03

Method for producing unsaturated aldehyde and unsaturated carboxylic acid

#216
20090182170
2009-07-16

Process for producing α,β-unsaturated carboxylic acid

#217
20090171118
2009-07-02

Preparing a compound comprising a combination of two crystal phases

#218
20090171117
2009-07-02

METHOD FOR PRODUCING A MULTI METAL OXIDE CATALYST, METHOD FOR PRODUCING UNSATURATED ALDEHYDES AND/OR CARBOXYLIC ACIDS AND BAND CALCINATION DEVICE

#219
20090171109
2009-07-02

Integrated process for preparing a carboxylic acid from an alkane

#220
20090170696
2009-07-02

Process for producing catalyst

#221
20090156860
2009-06-18

Catalyst for producing α,β-unsaturated carboxylic acid and method for preparation thereof, and method for producing α,β-unsaturated carboxylic acid

#222
20090134357
2009-05-28

ACRYLIC ACID, WATER-ABSORBENT POLYMER STRUCTURES BASED ON RENEWABLE RESOURCES AND METHOD FOR PRODUCING SAID STRUCTURES

#223
20090124825
2009-05-14

Method of (meth) acrylate production

#224
20090088316
2009-04-02

Method for regenerating catalyst

#225
20090068440
2009-03-12

PRODUCTION OF ACROLEIN, ACRYLIC ACID AND WATER-ABSORBENT POLYMER STRUCTURES MADE FROM GLYCERINE

#226
20090062564
2009-03-05

Method for producing methacrolein and/or methacrylic acid

#227
20090043128
2009-02-12

Catalyst and process for production of acrylic acid

#228
20090043127
2009-02-12

Complex metal oxide catalyst with high (meth) acrylic acid selectivity

#229
20090043114
2009-02-12

Flow reactors for chemical conversions with heterogeneous catalysts

#230
20090030230
2009-01-29

Mixed oxide catalysts for the catalytic gas-phase oxidation of olefins and processes for producing them

#231
20090030224
2009-01-29

Process for producing metal oxide catalyst

#232
20090023972
2009-01-22

Manganese oxides and their use in the oxidation of alkanes

#233
20090023952
2009-01-22

PALLADIUM-CONTAINING CATALYST, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING ALPHA, BETA-UNSATURATED CARBOXYLIC ACID

#234
20090005593
2009-01-01

Catalyst for production of acrylic acid and process for production of acrylic acid using this catalyst

#235
20080306298
2008-12-11

Method for manufacturing palladium-containing catalyst

#236
20080300414
2008-12-04

Process for recharging the reaction tubes of a tube bundle reactor with a new fixed catalyst bed

#237
20080286186
2008-11-20

Composite oxide catalyst and method of producing the same

#238
20080271539
2008-11-06

Method of maintaining a multitubular reactor

#239
20080269522
2008-10-30

PROCESS FOR OPERATING AN EXOTHERMIC HETEROGENEOUSLY CATALYZED PARTIAL GAS PHASE OXIDATION OF AN ORGANIC STARTING COMPOUND TO AN ORGANIC TARGET COMPOUND

#240
20080260605
2008-10-23

Process for preparing at least one organic target compound by heterogeneously catalyzed gas phase partial oxidation

#241
20080255374
2008-10-16

Process for charging a longitudinal section of a catalyst tube

#242
20080253943
2008-10-16

Method for vapor phase catalytic oxidation

#243
20080242815
2008-10-02

Oxide catalyst, process for producing acrolein or acrylic acid and process for producing water absorbent resin

#244
20080234522
2008-09-25

Method for vapor phase catalytic oxidation

#245
20080228001
2008-09-18

Process for Producing (Meth)Acrylic Acid or (Meth)Acrolein

#246
20080216915
2008-09-11

Method for vapor phase catalytic oxidation

#247
20080214863
2008-09-04

Process for preparing a catalyst consisting of a support body and a catalytically active composition applied on the surface of the support body

#248
20080197086
2008-08-21

Assembly for the Treatment of a Polymerizable Material

#249
20080188695
2008-08-07

Process for regenerating a catalyst bed deactivated in the course of a heterogeneously catalyzed partial dehydrogenation of a hydrocarbon

#250
20080188681
2008-08-07

Catalyst for oxidation of saturated and unsaturated aldehydes to unsaturated carboxylic acid, method of making and method of using thereof

#251
20080187467
2008-08-07

APPARATUS FOR LONG-TERM OPERATION OF A HETEROGENEOUSLY CATALYZED GAS PHASE PARTIAL OXIDATION OF AT LEAST ONE ORGANIC COMPOUND

#252
20080183013
2008-07-31

Method for producing acrylic acid from glycerol

#253
20080177106
2008-07-24

Selective oxidation of alkanes and/or alkenes to valuable oxygenates

#254
20080177105
2008-07-24

Process for preparing shaped catalyst bodies whose active composition is a multielement oxide

#255
20080161602
2008-07-03

Mixed metal oxide catalysts and processes for their preparation and use

#256
20080154056
2008-06-26

Process for the selective (AMM) oxidation of lower molecular weight alkanes and alkenes

#257
20080149319
2008-06-26

Process for transferring heat to a liquid mixture comprising at least one (meth)acrylic monomer

#258
20080119673
2008-05-22

Process for heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated

#259
20080119667
2008-05-22

Composite oxide catalyst and method of producing the same

#260
20080107583
2008-05-08

Composite oxide catalyst and method of producing the same

#261
20080103331
2008-05-01

Annealed and promoted catalyst

#262
20080071109
2008-03-20

Process for producing (meth)acrolein or (meth)acrylic acid

#263
20080064899
2008-03-13

Method For Producing Alpha, Beta-Unsaturated Carboxylic Acid

#264
20080045748
2008-02-21

Process for producing (meth)acrolein or (meth)acrylic acid

#265
20080031788
2008-02-07

Process for converting a hydrocarbon to an oxygenate or a nitrile

#266
20080025879
2008-01-31

Reactor, reactor control system, and catalytic gas phase oxidation reaction method

#267
20080021242
2008-01-24

Reactor for gas phase catalytic oxidation and a process for producing acrylic acid using it

#268
20080021240
2008-01-24

Method for gas-phase catalytic oxidation using a fixed bed reactor

#269
20080021239
2008-01-24

Process for Producing (Meth)Acrylic Acid or (Meth)Acrolein

#270
20080014127
2008-01-17

Pilot test method for multitubular reactor

#271
20080004468
2008-01-03

Process for the preparation of acrylic acid comprising a partial oxidation of propane to propylene

#272
20080004173
2008-01-03

Process for regenerating catalyst

#273
20070282134
2007-12-06

Process for hydroformylation of propylene

#274
20070282133
2007-12-06

Propylene hydroformylation

#275
20070276157
2007-11-29

Process for preparing acrolein or acrylic acid or a mixture thereof from propane

#276
20070275849
2007-11-29

Catalyst For Gaseous Partial Oxidation Of Propylene And Method For Preparing The Same

#277
20070270611
2007-11-22

Method for production of (meth)acrylic acid

#278
20070270610
2007-11-22

Process for producing (meth)acrylic acid or (meth)acrolein

#279
20070249737
2007-10-25

Cyclone reactor and associated methods

#280
20070238903
2007-10-11

Palladium-containing catalyst and method for producing same

#281
20070238898
2007-10-11

Method for producing organic acid

#282
20070213567
2007-09-13

Process For Producing Acrolein And/Or Acrylic Acid

#283
20070208201
2007-09-06

Process for producing (meth)acrylic acid or (meth)acrolein

#284
20070203022
2007-08-30

Metal Oxide Catalyst And Method For The Preparation Thereof

#285
20070173667
2007-07-26

Process for producing (meth) acrylic acid

#286
20070173662
2007-07-26

Catalyst for producing alpha, beta-unsaturated carboxylic acid and method for preparation thereof, and method for producing alpha, beta-unsaturated carboxylic acid

#287
20070167648
2007-07-19

Process for the long-term operation of a heterogeneously catalyzed partial gas phase oxidation of an organic starting compound

#288
20070161819
2007-07-12

Process for producing catalyst for methacrylic acid synthesis

#289
20070155988
2007-07-05

Process for heterogeneously catalyzed gas phase partial oxidation of at least one organic starting compound

#290
20070149809
2007-06-28

Method for producing catalyst for production of unsaturated aldehyde and unsaturated carboxylic acid

#291
20070149808
2007-06-28

Process for heterogeneously catalyzed partial gas phase oxidation of propylene to acrylic acid

#292
20070149807
2007-06-28

Process for heterogeneously catalyzed partial gas phase oxidation of propylene to acrylic acid

#293
20070149806
2007-06-28

Catalyst for oxidation of saturated and unsaturated aldehydes to unsaturated carboxylic acid, method of making and method of using thereof

#294
20070149388
2007-06-28

Process for synthesizing a heteropoly acid catalyst for oxidation of unsaturated aldehydes to unsaturated carboxylic acid

#295
20070142689
2007-06-21

Process for continuous heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated

#296
20070142666
2007-06-21

Process for producing α,β-unsaturated carboxylic acid

#297
20070129571
2007-06-07

PROCESS FOR PRODUCING (METH)ACRYLIC ACIDS

#298
20070129570
2007-06-07

Method for producing acrylic acid

#299
20070123732
2007-05-31

Process for stably operating a continuous preparation process for obtaining acrolein or acrylic acid or a mixture thereof from propane

#300
20070117999
2007-05-24

Method for the safe operation of a gas-phase partial oxidation