ClassID:

239722

Y10S203/20 - CPC Classification

Classification description:

Distillation: processes, separatory Power plant

Recent Application in this class:
#1
20150174506
2015-06-25

Trihalosilane refining device having divided wall distillation column

#2
20140076711
2014-03-20

Trihalosilane refining method

#3
20140076710
2014-03-20

Trihalosilane refining method

#4
20140076709
2014-03-20

Trihalosilane refining method

#5
20110266134
2011-11-03

Low-energy extractive distillation process for dehydration of aqueous ethanol

#6
20110139604
2011-06-16

Dividing wall column for fractionation of a multicomponent mixture

#7
20100101930
2010-04-29

Heat pump for high purity bottom product

#8
20100084258
2010-04-08

Processes for continuous fractional distillation of mixtures comprising morpholine, monoaminodiglycol, ammonia and water

#9
20090173615
2009-07-09

Process for separating diisopropylbenzene (DIPB) and triisoproplybenzene (TIPB) from a feed comprising DIPB, TIBP, and polyalkylate heavies

#10
20090120780
2009-05-14

Splitter with multi-stage heat pump compressor and inter-reboiler

#11
20090084667
2009-04-02

Process for manufacturing high purity methacrylic acid

#12
20090020407
2009-01-22

Processes for preparing pure xylylenediamine

#13
20090014313
2009-01-15

Low-energy extractive distillation process for dehydration of aqueous ethanol

#14
20080179176
2008-07-31

Process for the preparation of aromatic amines

#15
20080086021
2008-04-10

Process for removing at least benzene from hydrocarbon streams

#16
20070295592
2007-12-27

Method for improving a piperazine colour stability

#17
20070039813
2007-02-22

Method for obtaining crude 1,3-butadiene from a Cfraction

#18
20070015938
2007-01-18

Process for manufacturing high purity methacrylic acid

#19
20060272934
2006-12-07

Recycling of ionic liquids produced in extractive distillation

#20
20060243584
2006-11-02

Method for avoiding corrosion

#21
20060219545
2006-10-05

Method for the purification of dimethylacetamide (DMAc)

#22
20060175189
2006-08-10

Method of producing and separating dinitrile compounds

#23
20060157336
2006-07-20

Dividing-wall column with feed in whole or in part in the vaporous state and/or side stream take off in whole or in part in the vaporous state

#24
20060151310
2006-07-13

Method for the distillative separation of a mixture containing vinyl ether and alchol

#25
20060137967
2006-06-29

Distillation systems

#26
20060113180
2006-06-01

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

#27
20060086602
2006-04-27

Purification of N-(2-hydroxyethyl)-2-pyrrolidone

#28
20060006056
2006-01-12

Process for obtaining fatty acids with improved odor, color and heat stability

#29
20050263385
2005-12-01

Process for the distillative separation of aqueous amine solutions

#30
20050258026
2005-11-24

Method for the continuous purification by distillation of the solvent methanol, used in the synthesis of propylene oxide

#31
20050258025
2005-11-24

Method for purifying tetrahydrofuran by distillation

#32
20050252761
2005-11-17

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

#33
20050211541
2005-09-29

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

#34
20050199482
2005-09-15

Method and device for extractive distillation

#35
20050000791
2005-01-06

Process for fractionating water-containing crude amine mixtures from amine synthesis