ClassID:

91133

C07C31/205 - CPC Classification

Classification description:

Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms; Polyhydroxylic acyclic alcohols; Dihydroxylic alcohols 1,3-Propanediol; 1,2-Propanediol

Recent Application in this class:
#1
20260028725
2026-01-29

PROCESS FOR PREPARING PROPYLENE AND POLYPROPYLENE FROM CO2

#2
20250171389
2025-05-29

Process for Producing 1,2-Alkanediol From the Corresponding Alkene and Hydrogen Peroxide

#3
20250136536
2025-05-01

METHODS FOR VICINAL DIOL SEPARATION

#4
20230148352
2023-05-11

RECOVERING MONO-PROPYLENE GLYCOL

#5
20210340088
2021-11-04

Methods for vicinal diol separation

#6
20210198177
2021-07-01

Methods and compositions incorporating alkyl polyglycoside surfactant for use in oil and/or gas wells

#7
20210188665
2021-06-24

Sorbent compositions for the removal of boron from aqueous mediums

#8
20210163503
2021-06-03

Oxidizing liquid media for chemical transformations

#9
20200377438
2020-12-03

Stabilization of polyhydric alcohols by steam injection

#10
20200325090
2020-10-15

Process for the separation of diols

#11
20200181049
2020-06-11

Method for decolorizing and deodorizing polyhydric alcohol

#12
20200095183
2020-03-26

Direct oxidation of olefins to oxygenated species

#13
20200095179
2020-03-26

Oxidation of alkane to alkene

#14
20190345084
2019-11-14

Process for the preparation of glycols

#15
20190315674
2019-10-17

Methods and compositions incorporating alkyl polyglycoside surfactant for use in oil and/or gas wells

#16
20190263739
2019-08-29

Process for the production of propylene glycol from lactate ester

#17
20190262807
2019-08-29

Surface-modified calcium carbonate as carrier for transition metal-based catalysts

#18
20190256447
2019-08-22

Process for producing 1,2-propanediol from glycerol

#19
20190225565
2019-07-25

Method for the production of glycols from sorbitol

#20
20190202760
2019-07-04

Process for the production of glycols

#21
20190184378
2019-06-20

Methods, catalysts, and devices for biological object degradation

#22
20190169152
2019-06-06

Process for the preparation of DL-proline co-crystal of Dapagliflozin

#23
20190168190
2019-06-06

Solid catalysts for producing alcohols and methods of making the same

#24
20190111413
2019-04-18

Process for the preparation of a catalyst and a process for producing glycols using the catalyst

#25
20190084902
2019-03-21

Integrated process for poly olefin production with reduced greenhouse gas emission

#26
20180362425
2018-12-20

PROCESS FOR THE PREPARATION OF GLYCOLS

#27
20180362424
2018-12-20

Process for the preparation of glycols

#28
20180272319
2018-09-27

PROCESS FOR THE PREPARATION OF A HYDROGENATION CATALYST AND ITS USE FOR THE PREPARATION OF GLYCOLS

#29
20180237296
2018-08-23

Propylene glycol reforming

#30
20180236431
2018-08-23

Fuel processor component for a propylene glycol fuel processor and propylene glycol fuel processor

#31
20180223213
2018-08-09

CHALCOGENIDE NANOOBJECTS AND USE THEREOF AS ADDITIVE

#32
20180201559
2018-07-19

Copper-containing multimetallic catalysts, and method for using the same to make biobased 1,2-propanediol

#33
20180186784
2018-07-05

Crystalline forms of N-(2-chloro-6-methy]phenvn-2-[F6-[4-(2-hvdroxvethvl)-L-piperazin-vil-2-methvil-4-pvrimidinvllaminol-5-thiazolecarboxamide and their process thereof

#34
20180170845
2018-06-21

Method for polyol synthesis from triacylglyceride oils

#35
20180170773
2018-06-21

Sorbent compositions for the removal of boron from aqueous mediums

#36
20180086681
2018-03-29

Continuous processes for the highly selective conversion of sugars to propylene glycol or mixtures of propylene glycol and ethylene glycol

#37
20180037532
2018-02-08

Recovery process for functionalized compound reaction product

#38
20170362150
2017-12-21

Process for the separation of glycols

#39
20170275518
2017-09-28

Methods and compositions incorporating alkyl polyglycoside surfactant for use in oil and/or gas wells

#40
20160176794
2016-06-23

Process for the Manufacture of Propanediol

#41
20150307540
2015-10-29

AMORPHOUS FORM OF DAPAGLIFLOZIN 1,2-PROPANEDIOL

#42
20150158810
2015-06-11

Prevention or suppression of crystallisation of boric acid present in an aqueous phase

#43
20150152031
2015-06-04

Methods for producing bioderived propylene glycol

#44
20150148505
2015-05-28

Amidinate and guanidinate complexes, their use as chain transfer polymerization catalysts and long chain alcohols obtained by such process

#45
20140343329
2014-11-20

Process for preparing deodorized 1,2-propanediol

#46
20140256991
2014-09-11

METHODS FOR PRODUCING BIODERIVED PROPYLENE GLYCOL

#47
20140212957
2014-07-31

PRODUCTION OF OPTICALLY PURE PROPANE-1,2-DIOL

#48
20140121420
2014-05-01

Methods for production and processing of a glycol reaction product obtained from hydrothermal digestion of cellulosic biomass solids

#49
20130096326
2013-04-18

Method of biobased chemical production from crude bioglycerin

#50
20130091760
2013-04-18

METHOD OF BIOBASED CHEMICAL PRODUCTION FROM CRUDE BIOGLYCERIN OF ANIMAL ORIGIN

#51
20130091759
2013-04-18

METHOD OF BIOBASED CHEMICAL PRODUCTION FROM CRUDE BIOGLYCERIN OF PLANT ORIGIN

#52
20130060067
2013-03-07

Method for the conversion of cellulose and related carbohydrate materials to low-molecular-weight compounds

#53
20130030223
2013-01-31

Method of making alkylene glycols

#54
20130029831
2013-01-31

Homogeneous process for the hydrogenation of carboxylic acids and derivatives thereof

#55
20130028803
2013-01-31

Method of making alkylene glycols

#56
20120330070
2012-12-27

Method of producing lower alcohols from glycerol

#57
20120323051
2012-12-20

Co-production of biofuels and glycols

#58
20120283478
2012-11-08

Methods and systems for generating polyols

#59
20120277478
2012-11-01

Processes for preparing polytrimethylene ether glycol

#60
20120253082
2012-10-04

Method of producing diol or triol

#61
20120232312
2012-09-13

Process for converting glycerin into propylene glycol

#62
20120203015
2012-08-09

Method and device for producing alkylene oxides and alkylene glycols

#63
20120190899
2012-07-26

HYDROGENATION CATALYST COMPRISING NICKEL ON CARBON

#64
20120190891
2012-07-26

SYSTEMS AND METHODS FOR PROCESSING LIPID FEEDSTOCKS

#65
20120184783
2012-07-19

Process for the separation and purification of a mixed diol stream

#66
20120142976
2012-06-07

Process for producing hydrogenolysis products of polyhydric alcohols

#67
20120034665
2012-02-09

ENZYMATIC METHOD FOR PRODUCING ALDEHYDES

#68
20120029249
2012-02-02

Method of hydrogenolysis of sugar alcohols

#69
20110319672
2011-12-29

Conversion of sugar, sugar alcohol, or glycerol to valuable chemicals using a promoted zirconium oxide supported catalyst

#70
20110313211
2011-12-22

Process for making 1, 2-propane diol from hydrogenation of glycerol

#71
20110313210
2011-12-22

Catalytic process for continuously generating polyols

#72
20110313208
2011-12-22

Process for generation of polyols from saccharides

#73
20110313204
2011-12-22

Catalytic method of manufacture of compounds of the diol type

#74
20110306804
2011-12-15

Methods and systems for generating polyols

#75
20110301021
2011-12-08

PROMOTED ZIRCONIUM OXIDE CATALYST SUPPORT

#76
20110295044
2011-12-01

Production of propylene glycol from glycerine

#77
20110282107
2011-11-17

Method for producing deodorized 1,2-propanediol

#78
20110257441
2011-10-20

Method for purifying an alcohol from a fermentation broth using a falling film, a wiped film, a thin film or a short path evaporator

#79
20110237814
2011-09-29

Ruthenium carbonyl complex having tridentate ligand, its production method and use

#80
20110207972
2011-08-25

CATALYSTS AND PROCESSES FOR THE HYDROGENOLYSIS OF GLYCEROL AND OTHER ORGANIC COMPOUNDS FOR PRODUCING POLYOLS AND PROPYLENE GLYCOL

#81
20110207971
2011-08-25

Processes and systems for the production of propylene glycol from glycerol

#82
20110160482
2011-06-30

Catalysts for hydrodeoxygenation of polyols

#83
20110152583
2011-06-23

Purification of biologically-produced 1,3-propanediol

#84
20110152581
2011-06-23

Purification Of Biologically-Produced 1,3-Propanediol

#85
20110137085
2011-06-09

Method for the conversion of cellulose and related carbohydrate materials to low-molecular-weight compounds

#86
20110112335
2011-05-12

Process for the production and purification of propylene glycol

#87
20110071323
2011-03-24

Method For Producing 1,2-Propanediol By Hydrogenolysis Of Glycerin

#88
20110060168
2011-03-10

Hydrogenation process

#89
20110046418
2011-02-24

Method for producing hydrogenolysis product of polyhydric alcohol

#90
20110040132
2011-02-17

Method of producing lower alcohols from glycerol

#91
20110040131
2011-02-17

Method of producing propylene glycol

#92
20110040130
2011-02-17

Method for producing hydrogenolysis product of polyhydric alcohol

#93
20110004030
2011-01-06

Process for the production of 1,2-propanediol

#94
20110004029
2011-01-06

Polyol hydrogenolysis by in-situ generated hydrogen

#95
20100317902
2010-12-16

Separation of diols from a mixture comprising diols and polyols

#96
20100317901
2010-12-16

Nano-metal catalysts for polyol hydrogenolysis

#97
20100312024
2010-12-09

Method for producing 1,2-propandiol by low-pressure hydrogenation of glycerine

#98
20100312023
2010-12-09

Method for producing 1,2-propandiol by hydrogenation in at least three successive reactors

#99
20100280275
2010-11-04

Methods and systems for generating polyols

#100
20100261240
2010-10-14

Method of purifying alcohol from a fermentation broth

#101
20100256425
2010-10-07

Process for producing propylene glycol

#102
20100240934
2010-09-23

Method for producing 1,2-propandiol by hydrogenating glycerine in a two-step reactor cascade

#103
20100222615
2010-09-02

Method of making alkylene glycols

#104
20100204527
2010-08-12

Process for the hydrogenation of glycerol to propylene glycol

#105
20100179346
2010-07-15

METHOD FOR HYDROGENATING GLYCEROL

#106
20100168255
2010-07-01

METHOD FOR PRODUCING A COMPOUND WHICH HAS AT LEAST ONE ETHER GROUP

#107
20100160691
2010-06-24

Methods for converting glycerol to propanol

#108
20100137654
2010-06-03

Method for converting glycerol to propanol

#109
20100113842
2010-05-06

Method for producing alcohol by hydrogenating lactone and carboxylic acid ester in liquid phase

#110
20100113841
2010-05-06

Process for producing hydrogenolysis products of polyhydric alcohols

#111
20100105966
2010-04-29

Ethylene glycol removal of residual glycol impurities

#112
20100099924
2010-04-22

Method of producing lower alcohols from glycerol

#113
20100099550
2010-04-22

Homogeneous Process for the Hydrogenation of Carboxylic Acids and Derivatives Thereof

#114
20100094066
2010-04-15

GAS PHASE REACTION PROCESS FOR POLYHYDRIC COMPOUNDS

#115
20100094064
2010-04-15

Method for preparing 1,2-propanediol by hydrogenolysis of glycerol

#116
20100069685
2010-03-18

Process for producing product of hydrogenolysis of polyhydric alcohol

#117
20100036175
2010-02-11

Process for preparing 1,2-propanediol by hydrogenolysis of glycerol

#118
20100022807
2010-01-28

Catalytic process for the production of oxygenated hydrocarbons

#119
20100019192
2010-01-28

METHOD OF PRODUCING LOWER ALCOHOLS FROM GLYCEROL

#120
20100019191
2010-01-28

METHOD FOR PRODUCING 1,2-ETHYLENE GLYCOL AND 1,2-PROPYLENE GLYCOL BY MEANS OF THE HETEROGENEOUSLY CATALYSED HYDROGENOLYSIS OF A POLYOL

#121
20100004419
2010-01-07

High shear rotary fixed bed reactor

#122
20090314992
2009-12-24

Process for working up solvent-containing hydrogenation product mixtures

#123
20090306365
2009-12-10

Hydrogenolysis of Sugar Feedstock

#124
20090264687
2009-10-22

Chemical Production Processes and Systems

#125
20090216050
2009-08-27

Process for the preparation of 1,2-propanediol

#126
20090177018
2009-07-09

Process for producing product of hydrogenolysis of polyhydric alcohol

#127
20090176904
2009-07-09

BIOPLASTICS, MONOMERS THEREOF, AND PROCESSES FOR THE PREPARATION THEREOF FROM AGRICULTURAL FEEDSTOCKS

#128
20090156866
2009-06-18

Method for producing 1,2-propylene glycol using bio-based glycerol

#129
20090143612
2009-06-04

Hydrogenation process for the preparation of 1,2-diols

#130
20090120878
2009-05-14

Separation of a mixture of polyhydric alcohols

#131
20090118551
2009-05-07

Integrated Separation and Preparation Process

#132
20090105509
2009-04-23

Method of producing lower alcohols from glycerol

#133
20090104092
2009-04-23

Hydrogenolysis of Glycerol and Products Produced Therefrom

#134
20090099393
2009-04-16

Solid catalyst useful for converting an alkylene oxide to an alkylene glycol

#135
20090088317
2009-04-02

Multi-metal reduction catalysts and methods of producing reduction catalysts

#136
20090054702
2009-02-26

HYDROGENATION PROCESS

#137
20090054701
2009-02-26

Flexible glycerol conversion process

#138
20080315151
2008-12-25

Method of producing lower alcohols from glycerol

#139
20080300431
2008-12-04

Process for preparing an alkylene glycol

#140
20080289948
2008-11-27

Process for separating propylene glycol from aqueous compositions

#141
20080275277
2008-11-06

Processes for isolating or purifying propylene glycol, ethylene glycol and products produced therefrom

#142
20080274019
2008-11-06

Preparation of Derivative of Polyhydric Alcohols

#143
20080269531
2008-10-30

Catalytic process and apparatus for selective hydration of alkylene oxide

#144
20080242898
2008-10-02

Process for the preparation of propylene glycol

#145
20080228014
2008-09-18

Hydrogenolysis of glycerol and products produced therefrom

#146
20080228012
2008-09-18

Method for producing alcohols

#147
20080194398
2008-08-14

RUTHENIUM-COPPER CHROMITE HYDROGENATION CATALYSTS

#148
20080154071
2008-06-26

Process for preparing 1,3-propanediol

#149
20080103340
2008-05-01

APPLICATIONS OF BIOBASED GLYCOL COMPOSITIONS

#150
20080103339
2008-05-01

Hydrogenolysis of glycerol and products produced therefrom

#151
20080097130
2008-04-24

Method of isolating 1,3-propanediol or 1,3-propanediol and 1,2-propanediol from solution containing 1,3-propanediol, 1,2-propanediol, glycerol, and glucose

#152
20080051573
2008-02-28

Process for the production of sugar alcohols

#153
20080045749
2008-02-21

Process for the alternating conversion of glycerol to propylene glycol or amino alcohols

#154
20080025903
2008-01-31

Methods and systems for generating polyols

#155
20070287865
2007-12-13

Process for the conversion of glycerol to propylene glycol and amino alcohols

#156
20070249872
2007-10-25

Process for hydrogenating an aldehyde

#157
20070225528
2007-09-27

Process for Producing Optically Active Alcohol

#158
20070203373
2007-08-30

Process for the preparation of alkanediol

#159
20070197816
2007-08-23

Process for the production of dialkyl carbonate and alkanediol

#160
20070193960
2007-08-23

Process for recovering organic compounds from aqueous streams containing same

#161
20070191629
2007-08-16

Methods for preparing 3-hydroxy-propionate and 1,3-propylene glycol

#162
20070179322
2007-08-02

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

#163
20070175793
2007-08-02

Bioplastics, monomers thereof, and processes for the preparation thereof from agricultural feedstocks

#164
20070173655
2007-07-26

Oxidation process

#165
20070161828
2007-07-12

Production process of 3-alkoxy-1-propanols, and 3-alkoxy-1-propanols obtained by the production process

#166
20070149830
2007-06-28

Process

#167
20070142648
2007-06-21

Hydrogenation method for producing optically active alcohols or carboxylic acids

#168
20070135648
2007-06-14

Method for producing optically active alcohols or carboxylic acids

#169
20070123739
2007-05-31

Hydrogenolysis of sugar feedstock

#170
20060241325
2006-10-26

Hydrogenation catalyst and hydrogenation method

#171
20060229475
2006-10-12

Synthesis of hydroxylated hydrocarbons

#172
20060216216
2006-09-28

Method for the continuous production of propylene glycol

#173
20060189833
2006-08-24

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

#174
20060161027
2006-07-20

Method of producing 1, 3-propanediol

#175
20060124545
2006-06-15

Process for producing 1,3-propanediol

#176
20060116521
2006-06-01

Method for the production of optically active 2-amino 2-chloro, 2 hydroxy or 2-alkoxy-1-alcohols

#177
20060111595
2006-05-25

Catalyst for the production of 1,3-propanediol by catalytic hydrogenation of 3-hydroxypropanal

#178
20060041173
2006-02-23

Process for the preparation of alkylene glycols

#179
20060025637
2006-02-02

Method for the continuous production of propylene glycol

#180
20050283029
2005-12-22

Process for preparation of 1,3-propanediol

#181
20050277792
2005-12-15

Purification of biochemically derived 1,3-propanediol

#182
20050272962
2005-12-08

Purification of chemical 1,3-propanediol

#183
20050250958
2005-11-10

Method for the catalytic conversion of alkylene carbonate

#184
20050244312
2005-11-03

Method of producing lower alcohols from glycerol

#185
20050234269
2005-10-20

Homogenous process for the hydrogenation of carboxylic acids and derivatives thereof

#186
20050222452
2005-10-06

Process for preparing dioxy-functionalized propane compounds

#187
20050203268
2005-09-15

Method for producing polyesterpolyols of polyvalent alcohols

#188
20050182235
2005-08-18

Methods of making intermediates from polyhydroxyalkanoates

#189
20050148787
2005-07-07

Process for the preparation of propylene carbonate

#190
20050101760
2005-05-12

Methods of making intermediates from polyhydroxyalkanoates

#191
20050080300
2005-04-14

Process for the production of 1,3-propanediol by catalytic hydrogenation of 3-hydroxypropanal in the presence of a hydration co-catalyst

#192
20050069997
2005-03-31

Purification of biologically-produced 1,3-propanediol

#193
20050065337
2005-03-24

Methods of producing compounds from plant materials

#194
20050064560
2005-03-24

Methods of producing compounds from plant material

#195
20050043570
2005-02-24

Reduction of the viscosity of reactive heavy byproducts during the production of 1,3-propanediol

#196
20050014956
2005-01-20

Process for the preparation of propylene carbonate

#197
16443213
2020-08-25

Method for preparing 1,3-propanediol by hydrogenolysis of glycerol and its reaction system