ClassID:

91492

C07C45/80 - CPC Classification

Classification description:

Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds; Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment

Recent Application in this class:
#1
20260028300
2026-01-29

A PROCESS OF PREPARING DIVANILLYLMETHANE

#2
20250346551
2025-11-13

PREPARATION AND PURIFICATION OF CIS-2-ALKENOIC ACIDS

#3
20240327324
2024-10-03

METHOD FOR PRODUCING FATTY ALDEHYDES AND DERIVATIVES THEREOF

#4
20240254067
2024-08-01

NOVEL METHOD FOR CONTINUOUS PHEROMONE PRODUCTION

#5
20240191264
2024-06-13

METHOD FOR PRODUCING HIGHER LINEAR ALKANES

#6
20240190801
2024-06-13

PROCESS FOR THE PURIFICATION OF VANILLIN OR A VANILLIN DERIVATIVE OBTAINED BY A BIOTECHNOLOGICAL PROCESS

#7
20240158329
2024-05-16

METHOD FOR PURIFYING VANILLIN OR DERIVATIVES THEREOF OBTAINED BY A BIOTECHNOLOGICAL METHOD

#8
20240140896
2024-05-02

PROCESS FOR THE PURIFICATION OF VANILLIN OR A VANILLIN DERIVATIVE OBTAINED BY A BIOTECHNOLOGICAL PROCESS

#9
20240091737
2024-03-21

Aldol condensation reaction apparatus

#10
20230043356
2023-02-09

A SOLVENT DRYING COMPOSITION AND PROCESSES THEREFOR

#11
20230002299
2023-01-05

CYCLODODECANONE AND PREPARATION METHOD THEREFOR

#12
20220259125
2022-08-18

Method of decomposing phenolic by-products

#13
20220226749
2022-07-21

METHOD FOR PURIFYING AN AQUEOUS-ALCOHOLIC FEEDSTOCK COMPRISING ETHANOL AND ACETALDEHYDE

#14
20210331995
2021-10-28

Chalcone compound and preparation method thereof

#15
20210155571
2021-05-27

PURIFICATION OF 1,4-BIS (4-PHENOXYBENZOYL)BENZENE BY CENTRIFUGAL FILTRATION

#16
20210147335
2021-05-20

Fenfluramine compositions and methods of preparing the same

#17
20210130274
2021-05-06

Method of treating a neutralized aralkyl hydroperoxide cleavage stream

#18
20200346959
2020-11-05

Method for reducing pollutant discharge in phenol and acetone production

#19
20200299218
2020-09-24

Process for the recovery of ketones and glycols from fermentation

#20
20200298138
2020-09-24

Process for recovering aldehyde obtained by hydroformulation in two columns with increasing pressure

#21
20200079717
2020-03-12

Method for manufacturing 1,4-bis (4-phenoxybenzoyl)benzene using substantially non-hydrolyzed terephthaloyl chloride

#22
20200023286
2020-01-23

Method for continuous extraction and separation of useful compounds for plant or animal material

#23
20190284124
2019-09-19

Fenfluramine compositions and methods of preparing the same

#24
20190247766
2019-08-15

Thermally integrated distillation systems and processes using the same

#25
20190232193
2019-08-01

Process for purifying an aqueous solution comprising diethylacetal

#26
20190144366
2019-05-16

Use of a Lewis donor solvent to purify a feedstock that contains ethanol, acetaldehyde, and impurities

#27
20190135723
2019-05-09

Process for the recovery of ketones and glycols from fermentation

#28
20190106371
2019-04-11

Renewable ketone waxes with unique carbon chain lengths and polarities

#29
20190077739
2019-03-14

Dissociation of 1,4-bis (4-phenoxybenzoyl)benzene—Lewis acid complex in a protic solvent

#30
20190055259
2019-02-21

Method for producing diol having cyclic acetal skeleton

#31
20190023638
2019-01-24

Method for producing hydroxypivalaldehyde

#32
20190002383
2019-01-03

Process and apparatus for removing aldehydes from acetone

#33
20180334538
2018-11-22

Purification of 1,4-bis (4-phenoxybenzoyl)benzene by centrifugal filtration

#34
20180334420
2018-11-22

Dissociation of a 1,4-bis (4-phenoxybenzoyl)benzene-lewis acid complex in an aqueous solution

#35
20180334419
2018-11-22

Method for manufacturing 1,4-bis (4-phenoxybenzoyl)benzene using substantially non-hydrolyzed terephthaloyl chloride

#36
20180334418
2018-11-22

Method for manufacturing 1,4-bis (4-phenoxybenzoylbenzene) at an elevated temperature

#37
20180290954
2018-10-11

Method for recovering phenol and acetone from cracking reaction product of bisphenol-A residue

#38
20180201562
2018-07-19

Method for producing acetic acid

#39
20180148403
2018-05-31

Fenfluramine compositions and methods of preparing the same

#40
20180087075
2018-03-29

Method of producing bioproducts

#41
20180087023
2018-03-29

METHOD OF PRODUCING BIOPRODUCTS

#42
20180037532
2018-02-08

Recovery process for functionalized compound reaction product

#43
20170349512
2017-12-07

Apparatus for preparing glycol and method of preparing the same

#44
20170283352
2017-10-05

METHOD FOR PRODUCING AN AROMA SUBSTANCE

#45
20170240496
2017-08-24

Method of recovering acetone and a plant for recovering the same

#46
20170233322
2017-08-17

Hydroformylation process

#47
20170174613
2017-06-22

Fenfluramine compositions and methods of preparing the same

#48
20170095754
2017-04-06

Polyol-induced extraction of water from organic liquids

#49
20170014729
2017-01-19

COLUMN FOR THERMAL TREATMENT OF FLUID MIXTURES, ESPECIALLY THOSE COMPRISING (METH)ACRYLIC MONOMERS

#50
20160326695
2016-11-10

PROCESS FOR REFINING CHEMICALS FROM PULP AND PAPER MILL EFFLUENT

#51
20160289256
2016-10-06

NOVEL METHOD FOR THE DEPOLYMERISATION OF LIGNIN

#52
20160229779
2016-08-11

Dehydration process

#53
20160200660
2016-07-14

Method for producing methacrolein and the conditioning/draining thereof for direct oxidative esterification

#54
20160186073
2016-06-30

METHODS AND SYSTEMS FOR PROCESSING CELLULOSIC BIOMASS

#55
20160168062
2016-06-16

Process for depolymerization of lignin

#56
20160040929
2016-02-11

Column for thermal treatment of a fluid

#57
20160039733
2016-02-11

Method of isolating ingenol

#58
20160008735
2016-01-14

Process for purifying hydrocarbons

#59
20150291497
2015-10-15

Method for extracting asymmetric β-diketone compound from β-diketone compound

#60
20150218076
2015-08-06

Process for separating methylcyclopentanone from cyclohexanone

#61
20140316165
2014-10-23

Method for purifying vanillin by liquid-liquid extraction

#62
20140296569
2014-10-02

Optical resolution methods for bicyclic compounds using asymmetric catalysts

#63
20140263050
2014-09-18

Polyol-induced extraction of water from organic liquids

#64
20140221686
2014-08-07

Method of recovering carboxylic acids from dilute aqueous streams

#65
20130302365
2013-11-14

EXTRACTION OF OIL-SOLUBLE PIGMENT FROM MICRO-ORGANISMS

#66
20130261344
2013-10-03

Mitigation of fouling in hydroformylation processes by water addition

#67
20130225868
2013-08-29

Method for manufacturing a fat-soluble bioactive substance

#68
20130197097
2013-08-01

Spiroenone and uses thereof

#69
20120116129
2012-05-10

Process for purifying aqueous glyoxal solutions

#70
20120108851
2012-05-03

Method for producing norbornene derivative

#71
20120103786
2012-05-03

Separation of aromatic aldehydes

#72
20110275721
2011-11-10

METHOD FOR THE PURIFICATION OF SUBSTITUTED CYCLOPENT-2-EN-1-ONE CONGENERS AND SUBSTITUTED 1,3-CYCLOPENTADIONE CONGENERS FROM A COMPLEX MIXTURE USING COUNTERCURRENT SEPARATION

#73
20110257074
2011-10-20

METHOD FOR THE PURIFICATION OF SUBSTITUTED CYCLOPENT-2-EN-1-ONE CONGENERS AND SUBSTITUTED 1,3-CYCLOPENTADIONE CONGENERS FROM A COMPLEX MIXTURE USING COUNTERCURRENT SEPARATION

#74
20110201842
2011-08-18

METHOD FOR RECOVERING CARBOXYLIC ACIDS FROM DILUTE AQUEOUS STREAMS

#75
20110160490
2011-06-30

Hydroformylation process including catalyst recycle

#76
20110147307
2011-06-23

Method for recovering carboxylic acids from dilute aqueous streams

#77
20110112329
2011-05-12

Energy efficient acetone drying method

#78
20110046420
2011-02-24

PROCESS FOR THE CO-PRODUCTION OF ALCOHOLS

#79
20100324343
2010-12-23

Process for the preparation of hydroxytyrosol

#80
20100261935
2010-10-14

Method for producing alkoxyindanone derivative

#81
20100069678
2010-03-18

Hydroformylation process

#82
20090326277
2009-12-31

Method for purifying cyclic ketones

#83
20090326276
2009-12-31

Method for the production of cyclic ketones

#84
20090264682
2009-10-22

System and method for preparing cycloalkanone

#85
20090171125
2009-07-02

Hydroformylation process

#86
20090118548
2009-05-07

Hydroformylation process and product separation with improved recovery of rhodium

#87
20080251458
2008-10-16

Process for the treatment of wastewater from aldolization processes

#88
20080154071
2008-06-26

Process for preparing 1,3-propanediol

#89
20080081931
2008-04-03

Process for the preparation of glycolaldehyde

#90
20080051609
2008-02-28

Extraction process

#91
20070179322
2007-08-02

Method of treating an aldehyde mixture, use of the treated aldehyde, and an alcohol

#92
20070129427
2007-06-07

Compound and pharmaceutical composition

#93
20070098897
2007-05-03

Processes for preparing β-diketone compound, metal complex thereof and metallic compound

#94
20070073088
2007-03-29

Process for the separation, by countercurrentwise liquid-liquid extraction, of a glyoxal diacetal from a crude mixture comprising it

#95
20070032682
2007-02-08

Method of producing high-purity hydroxypivalaldehyde and/or dimer thereof

#96
20060189833
2006-08-24

Treatment of an aqueous mixture containing an alkylene oxide with an ion exchange resin

#97
20050107636
2005-05-19

Recycling process for preparing sertraline

#98
16276237
2020-01-21

Extraction process for high-boiling aldehyde product separation and catalyst recovery