ClassID:

90784

C07C11/09 - CPC Classification

Classification description:

Aliphatic unsaturated hydrocarbons; Alkenes with four carbon atoms Isobutene

Recent Application in this class:
#1
20250340497
2025-11-06

PROCESS FOR PURIFYING A RAW C4-HYDROCARBON MIXTURE

#2
20240300875
2024-09-12

PROCESS FOR OBTAINING ISOBUTENE FROM A C4-HYDROCARBON MIXTURE

#3
20230151283
2023-05-18

HYDROCARBON PYROLYSIS OF FEEDS CONTAINING NITROGEN

#4
20210101850
2021-04-08

Catalyst composition comprising modified crystalline aluminosilicate for dehydration of alcohols

#5
20210078922
2021-03-18

Sulfur injection in fluidization bed dehydrogenation on chromium catalyst for dehydrogenation process improvement and process scheme optimization

#6
20210078918
2021-03-18

Method for dehydrating alcohols to obtain olefins, involving a step of catalyst selectivation

#7
20210001316
2021-01-07

Method of preparation of dehydrogenation catalyst with high chromium content

#8
20200239386
2020-07-30

SYSTEM AND METHOD FOR DEHYDROGENATING ISOBUTANE TO ISOBUTYLENE

#9
20190275505
2019-09-12

Catalyst and method for direct conversion of syngas to light olefins

#10
20190270687
2019-09-05

Method for the isomerizing dehydration of a non-linear primary alcohol feedstock in the presence of water injection and a catalyst comprising a FER or MFS zeolite

#11
20190233348
2019-08-01

Process for dehydration of mono-alcohol(s) using a modified crystalline aluminosilicate

#12
20190194090
2019-06-27

Catalyst composition comprising modified crystalline aluminosilicate for dehydration

#13
20190177250
2019-06-13

Method for separating and purifying isobutylene and method for producing isobutylene

#14
20190126242
2019-05-02

Dehydrogenation catalysts

#15
20180312451
2018-11-01

Process for co-producing C3 olefins, iC4 olefins, nC4 olefins and diolefins, and/or C5 olefins and diolefins

#16
20180305279
2018-10-25

Production of isobutylene, isoamylene, or alkylates from mixed alkanes

#17
20180297911
2018-10-18

MATERIALS AND METHODS FOR PRODUCING ALKENES AND DERIVATIVES THEREOF

#18
20180290950
2018-10-11

Heterogeneous catalysts for the oxidative dehydrogenation of alkanes or oxidative coupling of methane

#19
20180223266
2018-08-09

HIV kinase variants

#20
20180134635
2018-05-17

METHODS FOR PRODUCING ALKENES AND DERIVATIVES THEREOF

#21
20170369399
2017-12-28

Process for enhancing the performance of the dehydrogenation of alkanes

#22
20170333876
2017-11-23

Catalyst and preparation method thereof, and method for preparing isobutylene by applying the same

#23
20130204057
2013-08-08

Simultaneous dehydration and skeletal isomerisation of isobutanol on acid catalysts

#24
20130137908
2013-05-30

Process for dehydration and isomerization of C4 alcohols using an amorphous solid with suitable porosity

#25
20130131418
2013-05-23

Mesoporous carbon supported copper based catalyst, production and use thereof

#26
20130072739
2013-03-21

Chromia alumina catalysts for alkane dehydrogenation

#27
20130041197
2013-02-14

Method of preparing alkene compound

#28
20130035531
2013-02-07

Reactor for carrying out an autothermal gas-phase dehydrogenation

#29
20120323055
2012-12-20

Renewable compositions

#30
20120322970
2012-12-20

BIOMASS RESOURCE-DERIVED POLYESTER AND METHOD FOR PRODUCING SAME

#31
20120322119
2012-12-20

Separation process using a polyimide membrane

#32
20120302808
2012-11-29

Conversion of propane to propylene

#33
20120294776
2012-11-22

Combined carbon dioxide and oxygen process for ethylbenzene dehydrogenation to styrene

#34
20120271082
2012-10-25

Variations on prins-like chemistry to produce 2,5-dimethylhexadiene from isobutanol

#35
20120259146
2012-10-11

Renewable compositions

#36
20120238787
2012-09-20

Renewable compositions

#37
20120232320
2012-09-13

Method of producing carrier for catalyst for oxidative dehydrogenation of n-butane, method of producing carrier-supported magnesium orthovanadate catalyst, and method of producing n-butene and 1, 3-butadiene using said catalyst

#38
20120203047
2012-08-09

Process and catalyst for cracking of ethers and alcohols

#39
20120197054
2012-08-02

PROCESS AND APPARATUS FOR DEHYDRATING ALKANES WITH EQUALIZATION OF THE PRODUCT COMPOSITION

#40
20120190893
2012-07-26

Tertiary amine salt additives for hydrate control

#41
20120157737
2012-06-21

Reactor for carrying out an autothermal gas-phase dehydrogenation

#42
20120142985
2012-06-07

Preparation of isobutene by dissociation of MTBE

#43
20120123177
2012-05-17

Process for the preparation of hydrogenated hydrocarbon compounds

#44
20120088947
2012-04-12

Process for oxidative dehydrogenation of paraffinic lower hydrocarbons

#45
20120053384
2012-03-01

Process for selectively making olefins from energy dense alcohols

#46
20110301392
2011-12-08

VARIATION OF TIN IMPREGNATION OF A CATALYST FOR ALKANE DEHYDROGENATION

#47
20110301316
2011-12-08

METHOD FOR MANUFACTURING BIOMASS-DERIVED METHYL METHACRYLATE

#48
20110282117
2011-11-17

Production of jet and other heavy fuels from isobutanol

#49
20110275877
2011-11-10

Separation of Normal Paraffins from Isoparaffins Using Rapid Cycle Pressure Swing Adsorption

#50
20110251448
2011-10-13

Endothermic hydrocarbon conversion process

#51
20110152596
2011-06-23

Catalyst and process for preparing isoolefins

#52
20110118523
2011-05-19

Process for preparing isobutene by cleaving MTBE-containing mixtures

#53
20110092758
2011-04-21

Method of purifying olefins using pyrrolidinium-based or piperidinium-based ionic liquids comprising copper (I) halide

#54
20110087000
2011-04-14

Integrated Process to Selectively Convert Renewable Isobutanol to P-Xylene

#55
20110071321
2011-03-24

Method for separating 1-butene from C-containing hydrocarbon streams by hydroformylation

#56
20110046424
2011-02-24

PROCESS FOR THE PREPARATION OF HYDROGENATED HYDROCARBON COMPOUNDS

#57
20110040133
2011-02-17

Production of Light Olefins and Isoprene from Butane

#58
20100312035
2010-12-09

Alkane dehydrogenation catalysts

#59
20100249476
2010-09-30

Catalytic dehydration of alcohols using phase pure, calcined single- and multi-site heterogeneous catalysts

#60
20100234648
2010-09-16

PROCESS FOR PRODUCING TERTIARY OLEFIN AND ALIPHATIC ALCOHOL

#61
20100197987
2010-08-05

Deisobutenizer

#62
20100168490
2010-07-01

METHOD FOR PREPARATION OF AN ALUMINOSILICATE WITH FERRIERITE STRUCTURE FROM GELS CONTAINING TETRAMETHYLAMMONIUM AND BENZYLMETHYLPYRROLIDINE, AND USES THEREOF

#63
20100010280
2010-01-14

Catalyst for dehydrogenation of hydrocarbons

#64
20090318743
2009-12-24

Combined carbon dioxide and oxygen process for ethylbenzene dehydrogenation to styrene

#65
20090178955
2009-07-16

Process and catalyst for cracking of ethers and alcohols

#66
20090124835
2009-05-14

Processes for production of isobutene and tertiary butanol

#67
20090069615
2009-03-12

METHOD AND EQUIPMENT FOR PREPARING ISOBUTYLENE USING TERTIARY BUTYL ALCOHOL

#68
20090030239
2009-01-29

Process for making butenes from aqueous isobutanol

#69
20080194891
2008-08-14

Process for the Preparation of Hydrogenated Hydrocarbon Compounds

#70
20080097134
2008-04-24

Endothermic hydrocarbon conversion process

#71
20080058575
2008-03-06

Process for the dissociation of MTBE

#72
20080058573
2008-03-06

Catalyst and process for preparing isoolefins

#73
20080058570
2008-03-06

Process for the dissociation of MTBE

#74
20080058569
2008-03-06

Process for the dissociation of MTBE

#75
20070249877
2007-10-25

Processes utilizing extractive distillation

#76
20070203369
2007-08-30

Process for preparing ethyl tert-butyl ether from technical mixtures of C4 hydrocarbons

#77
20070106107
2007-05-10

Reduction of the content of compounds containing oxygen and/or nitrogen in material flows containing isobutene

#78
20070106102
2007-05-10

Isobutylene

#79
20060275207
2006-12-07

Zeolite catalyst for skeletal isomerisation of olefins

#80
20060135833
2006-06-22

Method for the production of isobutene from commericial methyl tert-butly ether

#81
20060094914
2006-05-04

Paraffin dehydrogenation catalyst

#82
20050250969
2005-11-10

Propylene production

#83
20050177009
2005-08-11

Selective decomposition of ethers

#84
20050014985
2005-01-20

Process for preparing isobutene from tert-butanol