ClassID:

94915

C07D301/32 - CPC Classification

Classification description:

Preparation of oxiranes Separation; Purification

Recent Application in this class:
#1
20260028505
2026-01-29

1,3-PROPANEDIOL ACRYLATES, DIACRYLATES, MONOACRYLATES, METHACRYLATES, AND DIGLYCIDYL ETHER AND USES THEREOF

#2
20240409522
2024-12-12

Bio-based epoxy chain extender and preparation method thereof

#3
20240376063
2024-11-14

SIMPLIFIED ETHYLENE OXIDE PURIFICATION METHODS

#4
20240228450
2024-07-11

AN INTEGRATED PLANT AND AN INTEGRATED PROCESS FOR MAKING PROPENE OXIDE

#5
20240092749
2024-03-21

PROCESS FOR THE EPOXIDATION OF PROPENE

#6
20230382878
2023-11-30

A METHOD FOR INCREASING PROPYLENE OXIDE OUTPUT OF AN INTEGRATED PROCESS FOR MAKING PROPYLENE OXIDE AND PROPYLENE GLYCOL

#7
20230301960
2023-09-28

Tiglien-3-one derivatives

#8
20230159419
2023-05-25

Ethylene oxide purification

#9
20230120363
2023-04-20

Process for making propene oxide

#10
20230064622
2023-03-02

Process for recovering propylene oxide and carbon dioxide in PPC polyol production

#11
20220380327
2022-12-01

PROCESS FOR REMOVING POLY(PROPYLENE OXIDE) FROM PROPYLENE OXIDE BY MEMBRANE SEPARATION

#12
20220348528
2022-11-03

Ethylene oxide purification

#13
20220289702
2022-09-15

Epoxidation process with increased cycle water absorption

#14
20220274944
2022-09-01

COMPOSITE ABSORBENT AND USE THEREOF

#15
20220235020
2022-07-28

EPOXY REACTIVE DILUENT AND MANUFACTURING METHOD THEREFOR

#16
20220002259
2022-01-06

CONTINUOUS ISOLATION OF CANNABIDIOL AND CONVERSION OF CANNABIDIOL TO DELTA 8-TETRAHYDROCANNABINOL AND DELTA 9-TETRAHYDROCANNABINOL

#17
20210387959
2021-12-16

PROCESS FOR PREPARING CARYOPHYLLENE OXIDE

#18
20210309624
2021-10-07

Method of producing ethylene oxide and ethylene glycol

#19
20210293476
2021-09-23

Gas liquefaction separator, gas liquefaction recovery system, and method for separating and recovering ethylene oxide

#20
20210246111
2021-08-12

Process for purifying an alkylene oxide composition

#21
20210196668
2021-07-01

TIGLIEN-3-ONE DERIVATIVES

#22
20210171484
2021-06-10

Method and system for producing epoxyalkane

#23
20210163435
2021-06-03

Epoxy reactive diluent and manufacturing method therefor

#24
20210163434
2021-06-03

Method for recovery of ethylene oxide

#25
20210163433
2021-06-03

Method and system for producing epoxyalkane

#26
20210002241
2021-01-07

Propene recovery by scrubbing with a solvent/water mixture

#27
20210001298
2021-01-07

Guard bed system and process

#28
20200361888
2020-11-19

Methods of drying propylene oxide

#29
20200255389
2020-08-13

Continuous isolation of cannabidiol and cannabinoids and conversion of cannabidiol to delta 8-tetrahydrocannabinol and delta 9-tetrahydrocannabinol

#30
20200216375
2020-07-09

Methods and apparatuses for purifying crude propane

#31
20200179325
2020-06-11

Tiglien-3-one derivatives

#32
20200148655
2020-05-14

Recovery of ethylene oxide from sterilization process

#33
20200140403
2020-05-07

Method for producing propylene oxide

#34
20200071285
2020-03-05

Continuous isolation of cannabidiol and conversion of cannabidiol to delta 8-tetrahydrocannabinol and delta 9-tetrahydrocannabinol

#35
20200002261
2020-01-02

METHODS OF SYNTHESIZING A PROSTACYCLIN ANALOG

#36
20190359581
2019-11-28

Methods and systems for treatment of ethylene oxide

#37
20190337912
2019-11-07

Epoxidation process

#38
20190330170
2019-10-31

Epoxidation process with concentrated ethylene oxide solutions

#39
20190330128
2019-10-31

Methods and apparatuses for purifying crude propane

#40
20190322634
2019-10-24

Process for purifying propylene oxide

#41
20190276420
2019-09-12

Continuous isolation of cannabidiol and conversion of cannabidiol to delta 8-tetrahydrocannabinol and delta 9-tetrahydrocannabinol

#42
20190275184
2019-09-12

Recovery and recycle of Ethylene Oxide from Sterilization/Fumigation Processes

#43
20190241534
2019-08-08

Alkylene oxide separation system

#44
20190210989
2019-07-11

Process for purifying propylene oxide

#45
20190169149
2019-06-06

Process for preparing propylene oxide

#46
20190127322
2019-05-02

Method for producing N-retinoylcysteic acid alkyl ester

#47
20190100501
2019-04-04

Process for the epoxidation of propene

#48
20190099397
2019-04-04

Tiglien-3-one derivatives

#49
20190077780
2019-03-14

Method for Preparing Halohydrin and Epoxide

#50
20190031632
2019-01-31

Process for preparation of an aromatic N-glycidylamine

#51
20180370936
2018-12-27

Processes and systems for removing an alkyl iodide impurity from a recycle gas stream in the production of ethylene oxide

#52
20180370935
2018-12-27

Processes and systems for removing iodide impurities from a recycle gas stream in the production of ethylene oxide

#53
20180369773
2018-12-27

Guard bed system and process

#54
20180369752
2018-12-27

Processes and systems for removing a vinyl iodide impurity from a recycle gas stream in the production of ethylene oxide

#55
20180346432
2018-12-06

Process for the epoxidation of propene

#56
20180290973
2018-10-11

Method for producing N-retinoylcysteic acid alkyl ester

#57
20180230117
2018-08-16

Part-stream distillation

#58
20180221787
2018-08-09

Waste stream upgrading in a propylene oxide/styrene coproduction process

#59
20180141889
2018-05-24

Methods of synthesizing a prostacyclin analog

#60
20180044309
2018-02-15

Epoxidation process

#61
20180044308
2018-02-15

Systems and methods related to the production of ethylene oxide, ethylene glycol, and/or ethanolamines

#62
20180002301
2018-01-04

Purification of plasticizers

#63
20180002299
2018-01-04

Integrated process for making propene oxide and an alkyl tert-butyl ether

#64
20170298035
2017-10-19

Relating to ethylene oxide recovery

#65
20170297995
2017-10-19

Methods of synthesizing a prostacyclin analog

#66
20170239590
2017-08-24

Reflux condenser method

#67
20170166544
2017-06-15

Process for the manufacture of epoxy-monomers and epoxides

#68
20170137394
2017-05-18

Alkylene oxide separation systems, methods, and apparatuses

#69
20170114001
2017-04-27

PROCESS FOR PREPARING ALKANOLAMINES USEFUL IN REMOVAL OF ACID-GAS FROM A GASEOUS STREAM

#70
20170095789
2017-04-06

MEMBRANE-SUPPORTED CATALYST REMOVAL IN THE EPOXIDATION OF CYCLIC UNSATURATED C12 COMPOUNDS, FOR EXAMPLE CYCLODODECENE (CDEN)

#71
20170088695
2017-03-30

Plasticizer compositions and methods for making plasticizer compositions

#72
20160362387
2016-12-15

Part-stream distillation

#73
20160297783
2016-10-13

Process for forming propylene oxide from oxidation of methyl benzyl alcohol

#74
20160159761
2016-06-09

Assembly for producing alkylene oxides and glycol ethers

#75
20160158187
2016-06-09

Tiglien-3-one derivatives

#76
20160122310
2016-05-05

Process for the manufacture of epoxy-monomers and epoxides

#77
20160115140
2016-04-28

PART-STREAM DISTILLATION

#78
20160068498
2016-03-10

PROCESS FOR REMOVAL OF 1,2-EPOXY-5-HEXENE FROM EPICHLOROHYDRIN

#79
20160052900
2016-02-25

Method for producing ethylene oxide

#80
20150328619
2015-11-19

Membrane-supported catalyst removal in the epoxidation of cyclic unsaturated C12 compounds, for example cyclododecene (CDEN)

#81
20150322025
2015-11-12

Process and assembly for producing alkylene oxides and glycol ethers

#82
20150315162
2015-11-05

Process for producing fucoxanthinol extract and methods of use

#83
20150315114
2015-11-05

Methods of Synthesizing a Prostacyclin Analog

#84
20150274684
2015-10-01

Process for preparing epichlorohydrin from dichlorohydrin

#85
20150232437
2015-08-20

Process for recovering divinylarene dioxides

#86
20150158835
2015-06-11

Relating to propylene oxide purification

#87
20150141548
2015-05-21

LOW VISCOSITY EPOXY RESINS AND LOW VOC CURABLE FORMULATIONS THEREFROM

#88
20150065568
2015-03-05

Method for producing composition containing fucoxanthin

#89
20150031905
2015-01-29

Alkylene oxide separation systems, methods, and apparatuses

#90
20140155479
2014-06-05

Tiglien-3-one derivatives

#91
20130310583
2013-11-21

Separating phases of a mixture

#92
20130302365
2013-11-14

EXTRACTION OF OIL-SOLUBLE PIGMENT FROM MICRO-ORGANISMS

#93
20130302216
2013-11-14

System and process for producing an oxirane

#94
20130211110
2013-08-15

Process for manufacturing epichlorohydrin

#95
20130178601
2013-07-11

Process for preparing epoxy resins

#96
20130109872
2013-05-02

Process and assembly for producing alkylene oxides and glycol ethers

#97
20120312680
2012-12-13

Alkylene oxide separation systems, methods, and apparatuses

#98
20120302776
2012-11-29

Alkylene oxide purification systems

#99
20120136178
2012-05-31

Process for the preparation of ethylene glycol

#100
20120088940
2012-04-12

REFLUX CONDENSER

#101
20120077996
2012-03-29

Purification of propylene oxide

#102
20120031268
2012-02-09

Reversible ethylene oxide capture in porous frameworks

#103
20120006672
2012-01-12

Method for separating hexafluoropropylene oxide from hexafluoropropylene

#104
20110263881
2011-10-27

Method of separating solid salt from epoxy resin solutions

#105
20110245519
2011-10-06

Purification of propylene oxide

#106
20110190519
2011-08-04

Ambient temperature purification of alkylene oxides

#107
20110160470
2011-06-30

Method of controlling the production of silver chloride on a silver catalyst in the production of alkylene oxides

#108
20110054224
2011-03-03

Process for the preparation of alkylene glycol

#109
20100331556
2010-12-30

Epoxidation process

#110
20100331555
2010-12-30

Process and apparatus for producing and purifying epichlorohydrins

#111
20100272618
2010-10-28

Production of ethylene oxide

#112
20100105959
2010-04-29

Process for the removing poly(propylene oxide) from propylene oxide by membrane separation

#113
20100105932
2010-04-29

Recovery of components making up a liquid mixture

#114
20100094032
2010-04-15

Production of ethylene oxide

#115
20100094031
2010-04-15

Integrated hydro-oxidation process with separation of an olefin oxide product stream

#116
20100063306
2010-03-11

Alkylene oxide recovery systems

#117
20100056814
2010-03-04

Propylene oxide process

#118
20100036170
2010-02-11

Alkylene oxide purification processes and systems

#119
20100029964
2010-02-04

Alkylene oxide recovery systems

#120
20100029963
2010-02-04

Alkylene oxide recovery systems

#121
20100029962
2010-02-04

Alkylene oxide purification systems

#122
20090216032
2009-08-27

Ethylene oxide recovery process

#123
20090182042
2009-07-16

Tiglien-3-one derivatives

#124
20090159841
2009-06-25

Recovery of Optically Active Epoxy Alcohols

#125
20090118523
2009-05-07

Separation of propylene oxide from a mixture comprising propylene oxide and methanol

#126
20080293913
2008-11-27

Process to produce polyols

#127
20080230369
2008-09-25

Propylene oxide recovery process

#128
20080139735
2008-06-12

Solid pigment preparations containing water-soluble surface-active polyurethane-base additives

#129
20080081921
2008-04-03

Method of purifying epoxy compound

#130
20080035468
2008-02-14

Method of purifying propylene oxide

#131
20070238888
2007-10-11

Separation of Propylene Oxide from a Mixture Comprising Propylene Oxide and Methanol

#132
20070032671
2007-02-08

Process for purifying propylene oxide

#133
20060264648
2006-11-23

Production of ethylene oxide

#134
20060183927
2006-08-17

Ethylene oxide plant operation

#135
20060167287
2006-07-27

Continuous recirculation of the olefin which has not been reacted in the oxidation of olefins by hydroperoxides, by means of solvent scrubbing

#136
20060113180
2006-06-01

Purification of propylene oxide resulting from epoxidation of propylene with hydrogen peroxide

#137
20060009648
2006-01-12

Separation of propylene oxide from a mixture comprising propylene oxide and methanol

#138
20060006054
2006-01-12

Separation of propylene oxide from a mixture comprising propylene oxide and methanol

#139
20050277778
2005-12-15

Carbon dioxide production

#140
20050250965
2005-11-10

Method for the continuous purification by distillation of 1,2-propylene glycol that accumulates during the synthesis of propylene oxide without coupling products

#141
20050240037
2005-10-27

Method for the continuous intermediate separation of the solvent used in the oxirane synthesis with no coupling product

#142
20050234284
2005-10-20

Process for the treatment of sodium-containing heavy residues and fuel so obtained

#143
20050215802
2005-09-29

Process for preparing an alkylene oxide

#144
20050211541
2005-09-29

Method for continuously operated pure distillation of oxiranes, especially propylene oxide

#145
20050103617
2005-05-19

Process for preparing ethylene oxide

#146
20050092593
2005-05-05

Method of purifying propylene oxide

#147
20050085648
2005-04-21

Method for recovering propylene oxide

#148
20050082159
2005-04-21

Process for purification propylene oxide

#149
16892431
2020-10-27

Recovery of ethylene oxide from sterilization process