ClassID:

28578

B01D11/0426 - CPC Classification

Classification description:

Solvent extraction of solutions which are liquid Counter-current multistage extraction towers in a vertical or sloping position

Sub-classes:
Recent Application in this class:
#1
20250153071
2025-05-15

LIQUID-LIQUID EXTRACTION TECHNIQUES

#2
20230405489
2023-12-21

CONTINUOUS LIQUID-LIQUID CHROMATOGRAPHIC SEPARATION OF CHEMICAL SPECIES USING MULTIPLE LIQUID PHASES AND RELATED SYSTEMS AND ARTICLES

#3
20230085114
2023-03-16

Liquid-liquid extraction techniques

#4
20220226749
2022-07-21

METHOD FOR PURIFYING AN AQUEOUS-ALCOHOLIC FEEDSTOCK COMPRISING ETHANOL AND ACETALDEHYDE

#5
20210355076
2021-11-18

Device and method for the desalination of water by means of thermal deionisation and liquid-phase ion extraction liquid

#6
20200398185
2020-12-24

Method and apparatus for producing specific substances by extraction and separation in a liquid-liquid system

#7
20200398181
2020-12-24

Method for selectively separating impurities present in a hydro-alcoholic cut by recycling through a liquid-liquid extraction column

#8
20200339490
2020-10-29

Method for obtaining pure 1,3-butadiene

#9
20190232193
2019-08-01

Process for purifying an aqueous solution comprising diethylacetal

#10
20180009738
2018-01-11

Device and method for the desalination of water by means of thermal deionisation and liquid-phase ion extraction liquid

#11
20170313640
2017-11-02

Process for the separation of glycols

#12
20160376204
2016-12-29

Method for Reclaiming Usable Products from Biosolids

#13
20160368850
2016-12-22

Method for removing mineral acid from levulinic acid

#14
20160326695
2016-11-10

PROCESS FOR REFINING CHEMICALS FROM PULP AND PAPER MILL EFFLUENT

#15
20160303491
2016-10-20

Method for extracting oil from a water and solids composition, method for the production of ethanol, and ethanol production facility

#16
20160090341
2016-03-31

Methods and apparatuses for treating an organic feed

#17
20160083406
2016-03-24

Extraction solvent control for reducing stable emulsions

#18
20160007803
2016-01-14

Colander

#19
20150322627
2015-11-12

Process for refining chemicals from pulp and paper mill wastewaters

#20
20150274615
2015-10-01

Purification of isoprene from renewable resources

#21
20150166455
2015-06-18

Extraction column and process for extracting a constituent from a fluid

#22
20150140030
2015-05-21

Method for refining squalene produced by microalgae

#23
20150090638
2015-04-02

Extract recycle in a hydrocarbon decontamination process

#24
20150004663
2015-01-01

Method for isolating a carboxylic acid from an aqueous solution

#25
20140364638
2014-12-11

Extraction solvent control for reducing stable emulsions

#26
20140350280
2014-11-27

Extraction solvent control for reducing stable emulsions

#27
20140335581
2014-11-13

Lactic acid extraction

#28
20140316153
2014-10-23

Extraction solvent control for reducing stable emulsions

#29
20140275422
2014-09-18

Method for producing modified polymer and hydrogenated product thereof

#30
20140263051
2014-09-18

Liquid-liquid extractor

#31
20140221701
2014-08-07

Extraction of fusel alcohols from ethanol fermentation products

#32
20140178951
2014-06-26

System and process for obtaining products from biomass

#33
20140127769
2014-05-08

Method for extracting oil from a water and solids composition, method for the production of ethanol, and ethanol production facility

#34
20130281720
2013-10-24

Method for extracting organic compounds from aqueous mixtures

#35
20130072724
2013-03-21

Process for refining chemicals from pulp and paper mill wastewaters

#36
20130012738
2013-01-10

Method for recovery of acetic acid from an aqueous solution thereof

#37
20120302813
2012-11-29

PROCESSES AND APPARATUSES FOR PRODUCING A SUBSTANTIALLY LINEAR PARAFFIN PRODUCT

#38
20120190840
2012-07-26

Process for the production of alcohols

#39
20120130142
2012-05-24

AUTOMATICALLY MEASURING COLOR CHANGES IN A STREAM

#40
20120043278
2012-02-23

PAINT WASTE LIQUID TREATMENT METHOD

#41
20110178261
2011-07-21

Purification of isoprene from renewable resources

#42
20110088277
2011-04-21

System for liquid extraction, and methods

#43
20110071324
2011-03-24

Use of ionic liquids with tetracyanoborate anions as a solvents for extraction of alcohols from aqueous solutions

#44
20100249457
2010-09-30

Apparatus and method for recovery of acetic acid from an aqueous solution thereof

#45
20100193347
2010-08-05

Process for the purification of hydrofluoroolefins

#46
20090270645
2009-10-29

METHOD FOR THE SEPARATION OF NICKEL(0) COMPLEXES AND PHOSPHOROUS-CONTAINING LIGANDS FROM NITRILE MIXTURES

#47
20090259034
2009-10-15

Removal of acids from tertiary amide solvents

#48
20090200208
2009-08-13

METHOD OF PRODUCING MINERAL OILS BASED ON HYDROCARBON DISTILLATES

#49
20090155434
2009-06-18

Process for production of highly enriched fractions of natural compounds from palm oil with supercritical and near critical fluids

#50
20090047720
2009-02-19

Method for extracting oil from a water and solids composition

#51
20080154068
2008-06-26

Acetonitrile removal from the olefinic feed of ether production processes using ionic liquids

#52
20060124544
2006-06-15

System for liquid extraction, and methods

#53
20060081535
2006-04-20

Materials treatment

#54
20050189296
2005-09-01

Method for handling (meth) acrylic ester-containing solution

#55
17744236
2023-09-19

Aqueous extraction of propionitrile from chloropicrin