ClassID:

91106

C07C29/76 - page 2 - CPC Classification

Classification description:

Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring; Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment

Recent Application in this class:
#301
20110094872
2011-04-28

Method for producing of ultra-clean and high-purity electronic grade reagents

#302
20110028767
2011-02-03

Method for purifying fermentation alcohol

#303
20110028683
2011-02-03

Composition comprising glycerol, process for obtaining same and use thereof in the manufacture of dichloropropanol

#304
20110009677
2011-01-13

Method for purifying fermentation alcohol

#305
20110003355
2011-01-06

Process of separating components of a fermentation broth

#306
20100320148
2010-12-23

Dehydrating system and dehydrating method

#307
20100291646
2010-11-18

Process for the recovery of a fermentation product

#308
20100274034
2010-10-28

METHOD AND APPARATUS FOR PRODUCING FATTY ACID ALKYL ESTER AND/OR GLYCERIN

#309
20100270139
2010-10-28

Method for dewatering a mixture of mostly ethanol and water

#310
20100240915
2010-09-23

Pre-Treatment of Crude Alcohol or Furan Feed to a Vapor Permeation Apparatus

#311
20100240524
2010-09-23

Regenerating molecular sieve absorbents used for alcohol dehydration

#312
20100230635
2010-09-16

Glycerol vaporization method

#313
20100224560
2010-09-09

Ethanol water solution concentrating method

#314
20100222519
2010-09-02

Responsive materials for isolating organic compounds

#315
20100219128
2010-09-02

Dehydration system and dehydration method

#316
20100206789
2010-08-19

Dehydrator

#317
20100185024
2010-07-22

Menthol flakes and method for producing the same

#318
20100155333
2010-06-24

Process for dewatering an aqueous organic solution

#319
20100155331
2010-06-24

Process for dewatering an aqueous organic solution

#320
20100137657
2010-06-03

Combined temperature controlled water adsorption and two stage heat pump process for fuel ethanol dehydration

#321
20100137656
2010-06-03

Method for improving the color number of trimethylolpropane

#322
20100108602
2010-05-06

Processes for the recovery of fuel-grade ethanol from dilute aqueous streams

#323
20100105966
2010-04-29

Ethylene glycol removal of residual glycol impurities

#324
20100089798
2010-04-15

Use of solids based on zinc ferrite in a process for deep desulphurizing oxygen-containing feeds

#325
20100087689
2010-04-08

Method for depletion of sulfur and/or compounds containing sulfur from a biochemically produced organic compound

#326
20100081851
2010-04-01

ADSORBENT FOR DRYING ETHANOL

#327
20100006496
2010-01-14

Water separation membrane

#328
20100004491
2010-01-07

Method Of Fuse Oil Decanting In An Ethanol Plant

#329
20090259078
2009-10-15

Methods for recovery of alcohols from dilute aqueous alcohol feed streams

#330
20090216051
2009-08-27

APPARATUS AND METHOD FOR THE REMOVAL OF WATER FROM ETHANOL

#331
20090209789
2009-08-20

Microwave-assisted extraction of solanesol from potato stems and/or leaves

#332
20090200236
2009-08-13

Process for producing a composite membrane

#333
20090198088
2009-08-06

PROCESS FOR THE PURIFICATION OF CRUDE GLYCERIN UTILIZING ION EXCLUSION CHROMATORGRAPHY AND GLYCERIN CONCENTRATION

#334
20090187050
2009-07-23

Method for the separation of polymeric by-products from 1,4-butynediol

#335
20090178928
2009-07-16

Process for Desalting Glycerol Solutions and Recovery of Chemicals

#336
20090137849
2009-05-28

Method for the separation of polymeric by-products from 1,4-butynediol

#337
20090120878
2009-05-14

Separation of a mixture of polyhydric alcohols

#338
20090118551
2009-05-07

Integrated Separation and Preparation Process

#339
20090057128
2009-03-05

Liquid separation by membrane assisted vapor stripping process

#340
20090030243
2009-01-29

POLYOL REFINING

#341
20090018372
2009-01-15

Methods and apparatus for producing alcohols from syngas

#342
20090004713
2009-01-01

Membrane-augmented distillation with pressure change to separate solvents from water

#343
20080311240
2008-12-18

Steam Agglomeration of Polyols

#344
20080302358
2008-12-11

Process for preparing alkali and heat stable polyols

#345
20080249339
2008-10-09

Charged Polymers for Ethanol Dehydration

#346
20080249338
2008-10-09

Method for purification of glycerol

#347
20080245653
2008-10-09

Method of anhydrous ethanol production using circulation by multiple towers alternation

#348
20080242897
2008-10-02

Method for the separation of polymeric by-products from 1,4-butynediol

#349
20080221371
2008-09-11

Method for the separation of polymeric by-products from 1,4-butynediol

#350
20080217013
2008-09-11

Tunable surfactants for oil recovery applications

#351
20080216649
2008-09-11

Liquid-phase and vapor-phase dehydration of organic/water solutions

#352
20080207959
2008-08-28

Ethanol processing with vapour separation membranes

#353
20080207930
2008-08-28

Process for producing a chlorhydrin from a multihydroxylated aliphatic hydrocarbon and/or ester thereof in the presence of metal salts

#354
20080187974
2008-08-07

Process for preparing ethyl tert-butyl ether using ethanol dewatered by a membrane process

#355
20080128361
2008-06-05

Reduction of Sulfate Ions in Alcohols

#356
20080097085
2008-04-24

Crystalline Maltitol Powder Less Prone to Consolidation and Method for Production Thereof

#357
20080058560
2008-03-06

Purification of 1,1,1,3,3,3-hexafluoroisopropanol

#358
20080047822
2008-02-28

System and method for providing ethanol dehydration services

#359
20080039665
2008-02-14

Apparatus and method for the removal of water from ethanol

#360
20070292540
2007-12-20

Extracts and Methods Comprising Cinnamon Species

#361
20070284310
2007-12-13

Method and system for purifying ethanol

#362
20070249487
2007-10-25

Sulfate removal from ethanol

#363
20070238907
2007-10-11

Method for removing sulfur compounds from an alcohol stream

#364
20070205093
2007-09-06

Process for the extraction of ethanol from a water solution

#365
20070193874
2007-08-23

Method and device for improved fermentation process

#366
20070173670
2007-07-26

Process for dewatering ethanol

#367
20070155993
2007-07-05

Method of separating E and Z isomers of an alkene alcohol and derivatives thereof

#368
20070134143
2007-06-14

Removal of mercury compounds from glycol

#369
20070112218
2007-05-17

Method for producing an ethylamine

#370
20070088182
2007-04-19

Regenerating molecular sieve absorbents used for alcohol dehydration

#371
20060272501
2006-12-07

Sintered adsorbents, preparation method thereof and use of same for the drying of organic compounds

#372
20060247478
2006-11-02

Method of separating E and Z isomers of an alkene alcohol and derivatives thereof

#373
20060166951
2006-07-27

Compositions and methods for sterol isolation and purification

#374
20060096588
2006-05-11

Method for preparing L-iditol

#375
20060076271
2006-04-13

Process for the selective desulphurization of olefinic gasolines, comprising a hydrogen purification step

#376
20060070867
2006-04-06

Method for concentrating water-soluble organic material

#377
20060014974
2006-01-19

Process for producing fatty acid alkyl esters and glycerol of high-purity

#378
20050170947
2005-08-04

Agglomerated zeolitic adsorbents, their process of preparation and their uses

#379
20050169987
2005-08-04

Compacted menthol

#380
20050150380
2005-07-14

Three stage processes for the separation of supercritical or near-critical mixtures

#381
20050119110
2005-06-02

Process for the preparation of a molecular sieve adsorbent for the adsorptive dehydration of alcohols

#382
20050101777
2005-05-12

Method for preparing alkali and heat stable polyols

#383
20050072663
2005-04-07

Method of regenerating an aqueous glycol solution containing salts

#384
20050069997
2005-03-31

Purification of biologically-produced 1,3-propanediol

#385
20050054885
2005-03-10

Separation of methanol, ethanol and/or dimethyl ether from hydrocarbon mixtures

#386
20050038271
2005-02-17

Process for extraction and purification of lutein, zeaxanthin and rare carotenoids from marigold flowers and plants

#387
20050022665
2005-02-03

Gas processing method using a filtered glycol solution

#388
20050008693
2005-01-13

Process for the preparation of directly compressible α-mannitol

#389
16428214
2024-01-16

Glycerin separation system and method of use

#390
15836558
2020-08-04

Process and system for heat integration in ethanol production

#391
15089076
2017-08-15

System and method to remove organic acid from a rich MEG stream by stripping

#392
14540400
2018-03-20

Systems and methods for purification of glycerin

#393
14307217
2015-10-06

System for removing salt from a rich mono ethylene glycol stream