ClassID:

92437

C07C209/84 - CPC Classification

Classification description:

Preparation of compounds containing amino groups bound to a carbon skeleton; Purification; Separation; Stabilisation; Use of additives Purification

Recent Application in this class:
#1
20260103437
2026-04-16

METHOD FOR PRODUCING PURIFIED QUATERNARY AMMONIUM COMPOUND AQUEOUS SOLUTION

#2
20260055049
2026-02-26

CRYSTALLINE FORM OF TRIETHYLENETETRAMINE TETRAHYDROCHLORIDE AND ITS PHARMACEUTICAL USE

#3
20260028306
2026-01-29

PROCESS FOR PRODUCING METHYLENEBIS(CYCLOHEXYLAMINE)

#4
20250382257
2025-12-18

CRYSTALLINE FORM OF TRIETHYLENETETRAMINE TETRAHYDROCHLORIDE AND ITS PHARMACEUTICAL USE

#5
20250353990
2025-11-20

PROCESS FOR RECOVERING RAW MATERIALS FROM A POLYURETHANE MATERIAL

#6
20250304525
2025-10-02

METHOD FOR MANUFACTURE OF ISOPHORONEDIAMINE

#7
20250289779
2025-09-18

HIGH PURITY ETHYLENEDIAMINE FOR SEMICONDUCTOR APPLICATIONS

#8
20250257028
2025-08-14

Method for Preparing Trifluoromethyl Aromatic Compound

#9
20250206694
2025-06-26

METHOD FOR THE PURIFICATION OF ANILINE

#10
20250109090
2025-04-03

METHOD FOR PRODUCING ONIUM SALT AND METHOD FOR PURIFYING ONIUM SALT

#11
20250074862
2025-03-06

CRYSTALLINE FORM OF TRIETHYLENETETRAMINE TETRAHYDROCHLORIDE AND ITS PHARMACEUTICAL USE

#12
20240409492
2024-12-12

METHOD FOR CLEAVING (POLY)URETHANES

#13
20240360071
2024-10-31

CRYSTALLINE FORM OF TRIETHYLENETETRAMINE TETRAHYDROCHLORIDE AND ITS PHARMACEUTICAL USE

#14
20240336554
2024-10-10

Method for the Removal of Water from and Transport of Aliphatic Diamines

#15
20240254074
2024-08-01

METHOD FOR PURIFYING TRIALKYLAMINE, TRIALKYLAMINE PRODUCTION METHOD AND COMPOSITION

#16
20240109835
2024-04-04

Method for preparing 3,3′-diaminobenzidine

#17
20240051913
2024-02-15

Cage silicate and method for producing the same

#18
20240043370
2024-02-08

METHOD FOR TRIETHYLENETETRAMINE PURIFICATION

#19
20230357126
2023-11-09

PROCESS FOR PREPARATION OF TERT-BUTYLAMINE AND PROPIONIC ACID SALTS FROM N- TERTIARY BUTYL ACRYLAMIDE

#20
20230278948
2023-09-07

METHOD FOR MAKING A DI(AMINOARYL)FLUORENE COMPOUND

#21
20230278947
2023-09-07

METHOD FOR PRODUCING TERTIARY AMINE COMPOSITION

#22
20230265042
2023-08-24

Method for producing aromatic aminomethyl

#23
20230257339
2023-08-17

ALKYLAMINE COMPOSITION AND METHOD FOR STORING SAID ALKYLAMINE COMPOSITION

#24
20230139979
2023-05-04

Organic amine collection method

#25
20230017999
2023-01-19

PROCESS FOR THE PURIFICATION OF A MIXTURE COMPRISING N-ALKYL-HYDROXYLAMMONIUM SALTS

#26
20230008827
2023-01-12

SEPARATION OF N-METHYLETHYLENEDIAMINE FROM EDA-CONTAINING MIXTURES

#27
20220348533
2022-11-03

METHOD FOR THE PURIFICATION OF ANILINE

#28
20220259139
2022-08-18

Conversion of glycolaldehyde with an aminating agent

#29
20220235015
2022-07-28

PRODUCTS OBTAINED BY THE CONVERSION OF GLYCOLALDEHYDE DERIVATIVES AND AMINATING AGENTS AND THEIR CONVERSION TO ETHYLENEAMINES AND ETHANOLAMINES

#30
20220234991
2022-07-28

GAS-PHASE PROCESS FOR THE CONVERSION OF GLYCOLALDEHYDE WITH AN AMINATING AGENT

#31
20220169594
2022-06-02

CRYSTALLINE FORM OF TRIETHYLENETETRAMINE TETRAHYDROCHLORIDE AND ITS PHARMACEUTICAL USE

#32
20220153682
2022-05-19

METHOD FOR PRODUCING XYLYLENEDIAMINE

#33
20220064099
2022-03-03

Method for making a di(aminoaryl)fluorene compound

#34
20210371372
2021-12-02

Method for the production of ethyleneamines

#35
20210323907
2021-10-21

High purity ethylenediamine for semiconductor applications

#36
20210309603
2021-10-07

Composition for light emitting device and light emitting device containing the same

#37
20210188761
2021-06-24

Crystalline form of triethylenetetramine tetrahydrochloride and its pharmaceutical use

#38
20210188760
2021-06-24

PROCESS FOR THE PURIFICATION OF A PERFLUOROCARBON COMPOSITION

#39
20210163398
2021-06-03

Crystalline form of triethylenetetramine tetrahydrochloride and its pharmaceutical use

#40
20210155573
2021-05-27

Organic amine collection method

#41
20210147335
2021-05-20

Fenfluramine compositions and methods of preparing the same

#42
20200407310
2020-12-31

PROCESS FOR PURIFYING HEXAMETHYLENEDIAMINE

#43
20200392068
2020-12-17

Crystalline form of triethylenetetramine tetrahydrochloride and its pharmaceutical use

#44
20200385332
2020-12-10

Process for the continuous preparation of 1,2-propylene diamine (1,2-PDA) and dimethyldiethylene triamine (DMDETA)

#45
20200339865
2020-10-29

Process for preparing dibenzylamine quaternary ammonium salt high-temperature resistant corrosion inhibitor and applications thereof

#46
20200308097
2020-10-01

Method for the production of ethyleneamines

#47
20200270198
2020-08-27

Method of purifying 1,5-diaminopentane

#48
20200123097
2020-04-23

Aniline purification process

#49
20200115319
2020-04-16

Method of producing diamines and polyamines of the diphenylmethane series at different production capacities

#50
20200109104
2020-04-09

Method for purifying 1,5-pentanediamine and the 1,5-pentanediamine prepared thereby

#51
20200108331
2020-04-09

Systems and methods for recovering amines and their derivatives from aqueous mixtures

#52
20200071456
2020-03-05

N,N′-diaminopropyl-2-methylcyclohexane-1,3-diamine and N,N′-diaminopropyl-4-methylcyclohexane-1,3-diamine and the use thereof as curing agents for epoxy resins

#53
20190284124
2019-09-19

Fenfluramine compositions and methods of preparing the same

#54
20190241501
2019-08-08

Process for hydrogenating toluenediamine (TDA) tar

#55
20190241500
2019-08-08

Method for producing N-methyl-para-anisidine

#56
20190233366
2019-08-01

Crystalline diethylamine tetrathiomolybdate and its pharmaceutical uses

#57
20190210955
2019-07-11

Process for hydrogenating a mixture in the presence of a colorless amine

#58
20190055186
2019-02-21

Method for extracting 1,5-pentanediamine from solution system containing 1,5-pentanediamine salt

#59
20180355093
2018-12-13

Reduction of aldehydes in amine catalysts

#60
20180215698
2018-08-02

Purification of cadaverine using high boiling point solvent

#61
20180208542
2018-07-26

Method for preparing selegiline base

#62
20180148403
2018-05-31

Fenfluramine compositions and methods of preparing the same

#63
20180127351
2018-05-10

Method for purifying 1,4-diaminobutane

#64
20180086692
2018-03-29

Solid forms

#65
20180029971
2018-02-01

Purification of crude isophoronediamine by partial condensation in series with total condensation

#66
20180022691
2018-01-25

High Purity Ethylenediamine for Semiconductor Applications

#67
20180002272
2018-01-04

Method for purifying 1,5-pentanediamine and 1,5-pentanediamine

#68
20170313805
2017-11-02

Tertiary amine composition and method for making the composition

#69
20170298003
2017-10-19

Coupling of distillative purification with a partial condenser for pre-purification of isophoronediamine

#70
20170298002
2017-10-19

METHOD OF PRODUCING N-ALKYL POLYAMINES

#71
20170217874
2017-08-03

Method for the distillative purification of EDA

#72
20170174613
2017-06-22

Fenfluramine compositions and methods of preparing the same

#73
20170158615
2017-06-08

Waste treatment process

#74
20170137369
2017-05-18

Purification of cadaverine using high boiling point solvent

#75
20170137368
2017-05-18

Purification of cadaverine using high boiling point solvent

#76
20170137367
2017-05-18

Process for preparation of di- and polyamines of the diphenylmethane series

#77
20170121273
2017-05-04

Preparation of cadaverine

#78
20170114001
2017-04-27

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

#79
20170066713
2017-03-09

Production of aniline via anthranilate

#80
20170015616
2017-01-19

Refining method of organic amine

#81
20160372673
2016-12-22

Method and apparatus for purifying organic material by using ionic liquid

#82
20160367944
2016-12-22

System for the removal of heat stable amine salts from an amine absorbent

#83
20160332957
2016-11-17

PROCESS AND APPARATUS FOR PURIFYING A HYDROCARBON STREAM COMPRISING LINEAR ALPHA-OLEFINS (LAO) FROM AMINES

#84
20160304435
2016-10-20

Preparation of halogenated di-substituted benzylamines, particularly halogenated dialkylbenzylamines

#85
20160289165
2016-10-06

1,5-PENTAMETHYLENE DIAMINE AND PRODUCTION METHOD THEREFOR

#86
20160222153
2016-08-04

Tertiary amine composition and method for making the composition

#87
20160200664
2016-07-14

Process for preparing cinacalcet and pharmaceutically acceptable salts thereof

#88
20160193543
2016-07-07

METHOD AND APPARATUS FOR PURIFYING ORGANIC MATERIAL USING IONIC LIQUID

#89
20160016885
2016-01-21

METHOD OF PRODUCING OPTICALLY ACTIVE TRANS-1,2-DIAMINOCYCLOHEXANE

#90
20150368185
2015-12-24

Purification of cadaverine using high boiling point solvent

#91
20150368184
2015-12-24

Purification of cadaverine

#92
20150344431
2015-12-03

Method for producing purified amine compound

#93
20150284315
2015-10-08

Method for purifying 1,4-diaminobutane, 1,4-diaminobutane purified by said method, and polyamide prepared therefrom

#94
20150251988
2015-09-10

Promotion of imine formatin via cationic resin catalyst

#95
20150209775
2015-07-30

Branched-chain fatty acids as liquid cation exchangers

#96
20150102529
2015-04-16

Antioxidants for overcoat layers and methods for making the same

#97
20150094493
2015-04-02

Method for treating a substance mixture comprising an aromatic amine, in particular a substance mixture of raw aniline

#98
20150087862
2015-03-26

Method for stopping a reaction during the production of aromatic amines from nitroaromatics

#99
20150083576
2015-03-26

System and process for reclaiming single and mixed amine solvents

#100
20150080611
2015-03-19

Method for starting a reaction during the production of aromatic amines from nitroaromatics

#101
20150080610
2015-03-19

Process for the purification of aniline from gas phase hydrogenations

#102
20140213824
2014-07-31

Method for separating and purifying 1,4-diaminobutane from fermented solution

#103
20140107378
2014-04-17

Process for obtaining pure aniline

#104
20140046096
2014-02-13

Process for purifying aniline from gas phase hydrogenations

#105
20130274522
2013-10-17

Processes for separating one or more amine byproducts from one or more desired amines

#106
20130204044
2013-08-08

Decolorization of amines

#107
20130178654
2013-07-11

Process for cinacalcet hydrochloride

#108
20130150608
2013-06-13

Production of alkylaromatic compounds

#109
20130085193
2013-04-04

Tertiary amine composition and method for making the composition

#110
20120289631
2012-11-15

AROMATIC DIAMINE AND METHOD FOR MANUFACTURING THE SAME, AND ARAMID FIBER AND METHOD FOR MANUFACTURING THE SAME

#111
20120253077
2012-10-04

Method for distilling mixtures comprising ethylenediamine, N-methylethylenediamine, and water, and mixtures of ethylenediamine and N-methylethylenediamine having a low content of N-methylethylenediamine obtainable thereby

#112
20120253076
2012-10-04

Method for purifying compounds containing amino groups

#113
20120235087
2012-09-20

METHOD FOR THE REMOVAL OF HEAT STABLE AMINE SALTS FROM AN AMINE ABSORBENT

#114
20120172627
2012-07-05

Systems and methods for producing aromatic amines and removing phenol therefrom

#115
20120172616
2012-07-05

Method of separating off magnetizable catalyst particles by means of magnetic filters

#116
20120100184
2012-04-26

Synthesis of 1-amino-1,3,3,5,5,-cyclohexane mesylate

#117
20110313200
2011-12-22

Method for obtaining an aminoindan mesylate derivative

#118
20110295037
2011-12-01

PROCESSES FOR PREPARING CINACALCET HYDROCHLORIDE AND POLYMORPHIC FORMS THEREOF

#119
20110189241
2011-08-04

Process For Controlling The Particle Size of A [3-(Trifluoromethyl)Phenyl]-1-Aminopropane Derivative

#120
20110178326
2011-07-21

UNSATURATED CINACALCET SALTS AND PROCESSES FOR PREPARING CINACALCET HYDROCHLORIDE

#121
20110172455
2011-07-14

PROCESS FOR PREPARING CINACALCET AND PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF

#122
20110124917
2011-05-26

PROCESS FOR THE PREPARATION OF CINACALCET AND INTERMEDIATES THEREOF

#123
20110065960
2011-03-17

Method for producing diphenylmethane diamine

#124
20110004018
2011-01-06

Process for producing diamine and polyamide

#125
20100324336
2010-12-23

PROCESS FOR THE PRODUCTION OF AROMATIC AMINES

#126
20100298605
2010-11-25

Process for producing a concentrated solution for a photoresist-stripping liquid having low water content

#127
20100292511
2010-11-18

Purification of impure hexamethylenediamines

#128
20100292429
2010-11-18

Method for fermentatively producing 1,5-diaminopentane

#129
20100280272
2010-11-04

Method for obtaining an aminoindan mesylate derivative

#130
20100243423
2010-09-30

Method of dehydrating tolylenediamine and dehydrator

#131
20100105951
2010-04-29

Process for preparing diphenylmethanediamine

#132
20100087545
2010-04-08

PURIFICATION PROCESS

#133
20100010095
2010-01-14

Process for purifying rasagiline base

#134
20090292141
2009-11-26

Method for obtaining an aminoindan mesylate derivative

#135
20090275780
2009-11-05

PROCESS FOR CONTROLLING THE PARTICLE SIZE OF A 3-(TRIFLUOROMETHYL)PHENYL]-1-AMINOPROPANE DERIVATIVE

#136
20090272933
2009-11-05

Process for production of highly pure quaternary ammonium salt

#137
20090216047
2009-08-27

Purification process

#138
20090206748
2009-08-20

METHOD FOR PRODUCING AROMATIC COMPOUND AND AROMATIC COMPOUND

#139
20090192334
2009-07-30

Process for producing highly purified xyltlenediamine

#140
20090177010
2009-07-09

Process of making sertraline form I

#141
20090177009
2009-07-09

Process of making sertraline form II

#142
20090163684
2009-06-25

METHOD FOR PURIFYING POLAR VINYL COMPOUNDS

#143
20090124833
2009-05-14

Process for the purification of benzphetamine hydrochloride

#144
20090065347
2009-03-12

Process for the purification of aromatic amines

#145
20090032465
2009-02-05

METHOD FOR THE ELIMINATION OF METAL COMPLEX CATALYSTS FROM TELOMERIZATION MIXTURES

#146
20090020407
2009-01-22

Processes for preparing pure xylylenediamine

#147
20090012297
2009-01-08

Methods of using ionic liquids having a fluoride anion as solvents

#148
20090005596
2009-01-01

Process for simultaneously preparing 4,4′-diphenylmethanediamine and diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates

#149
20080315155
2008-12-25

Diamines Having Reduced Color

#150
20080287550
2008-11-20

Sertraline hydrochloride form II and methods for the preparation thereof

#151
20080262268
2008-10-23

Crystallization method for benzphetamine

#152
20080176949
2008-07-24

Sertraline hydrochloride polymorphs

#153
20080161607
2008-07-03

Processes for preparation of polymorphic form II of sertraline hydrochloride

#154
20080139850
2008-06-12

Process for removing compounds containing phenolic hydroxy groups from aromatic amines

#155
20080042557
2008-02-21

Process for Purification of Oligoanilines and Oligoanilines

#156
20080033054
2008-02-07

Process for preparing memantine hydrochloride substantially free of impurities

#157
20080009654
2008-01-10

Production of xylylenediamines

#158
20070287857
2007-12-13

Process for the production of toluene diisocyanate

#159
20070282129
2007-12-06

Processes for preparing sertraline hydrochloride crystalline forms

#160
20070238901
2007-10-11

Process for preparing aniline

#161
20070213404
2007-09-13

Processes for preparation of polymorphic form II of sertraline hydrochloride

#162
20070203364
2007-08-30

Process for preparing aniline

#163
20070197809
2007-08-23

Process for producing high-purity hafnium amide

#164
20070179317
2007-08-02

Process for the production of di- and polyamines of the diphenylmethane series

#165
20070135524
2007-06-14

Process for the preparation of polymorphs of selective serotonin reuptake inhibitor

#166
20070112217
2007-05-17

Methods for isolating propargylated aminoindans

#167
20070112073
2007-05-17

Protriptyline hydrochloride crystalline form

#168
20070099998
2007-05-03

Processes for preparing cinacalcet hydrochloride crystal Form I

#169
20070093557
2007-04-26

Sertraline hydrochloride form II and methods for the preparation thereof

#170
20070083065
2007-04-12

Method for the distillative recovery of toluylenediamine

#171
20070060777
2007-03-15

Method for producing aromatic compound and aromatic compound

#172
20070060645
2007-03-15

Purification of cinacalcet

#173
20070051627
2007-03-08

Removal of metal ions from onium hydroxides and onium salt solutions

#174
20070038005
2007-02-15

Sertraline hydrochloride form II and methods for the preparation thereof

#175
20060281951
2006-12-14

Commercial ADMA products having reduced salts and odor and the novel process for preparing same

#176
20060247472
2006-11-02

Method for purifying quaternary onium salts

#177
20060241189
2006-10-26

Sertraline hydrochloride polymorphs

#178
20060217549
2006-09-28

Diamine purification method

#179
20060167113
2006-07-27

Process for preparation of polymorphic form of sertraline hydrochloride

#180
20060076227
2006-04-13

Purification process

#181
20060020147
2006-01-26

Method of purifying quaternary alkyl ammonium salt and quaternary alkyl ammonium salt

#182
20050252761
2005-11-17

Distillative preparation of IPDA having a high cis/trans isomer ratio

#183
20050245767
2005-11-03

Method for the production of isophorondiamine (ipda, 3-aminomethyl-3,5,5-trimethyl- cyclohexylamine) having a high cis/tran-isomer ratio

#184
20050215824
2005-09-29

Purification of 1,3-bis(aminomethyl)cyclohexane by distillation

#185
20050209342
2005-09-22

Processes for preparation of polymorphic form II of sertraline hydrochloride

#186
20050197512
2005-09-08

Purification process

#187
20050080294
2005-04-14

Separation of amine from a phenolic compound

#188
20050059822
2005-03-17

Process for producing hexamethylenediamine and aminocapronitrile from adiponitrile, wherein the hexamethylenediamine contains less than 100 ppm tetrahydroazepine

#189
20050032907
2005-02-10

Methods for preparing sertraline hydrochloride polymorphs

#190
20050032906
2005-02-10

Sertraline hydrochloride form II and methods for the preparation thereof

#191
20050006252
2005-01-13

Process for improving the purity of quaternary ammonium hydroxides by electrolysis in a two-compartment cell

#192
20050003445
2005-01-06

Alterations in the long QT syndrome genes KVLQT1 and SCN5A and methods for detecting same

#193
16540595
2020-11-17

Process for the production of bretylium tosylate