ClassID:

28450

B01D3/28 - CPC Classification

Classification description:

Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping; Fractional distillation or use of a fractionation or rectification column; Fractionating columns in which vapour and liquid flow past each other, or in which the fluid is sprayed into the vapour, or in which a two-phase mixture is passed in one direction Fractionating columns with surface contact and vertical guides, e.g. film action

Recent Application in this class:
#1
20240336557
2024-10-10

METHOD FOR CONTINUOUSLY RECOVERING DIMETHYLFORMAMIDE FROM WASTE SOLUTION RESULTING FROM PRODUCTION OF POLYIMIDE

#2
20230415083
2023-12-28

VAPOR-LIQUID CONTACTING APPARATUS AND PROCESS WITH DOWNCOMER AT SHELL

#3
20220297081
2022-09-22

Contactor

#4
20210354106
2021-11-18

Structured packing

#5
20200399557
2020-12-24

Oil processing

#6
20200171437
2020-06-04

Separation processes and units via minimal surface area mass and heat transfer packing

#7
20190351346
2019-11-21

Method for recovering transition metal tetrahalide and hydrocarbons from a waste stream

#8
20190299138
2019-10-03

Vapor-liquid contacting apparatus and process with downcomer at shell

#9
20190299120
2019-10-03

Vapor-liquid contacting apparatus and process with offset contacting modules

#10
20190299119
2019-10-03

Vapor-liquid contacting apparatus and process with cross contacting

#11
20190135728
2019-05-09

Method for purifying an aqueous lactic acid solution

#12
20190126195
2019-05-02

EXTERNAL GAS MIXING PIPE FOR LIQUID-GAS CONTACTING UNIT

#13
20190046949
2019-02-14

Contacter

#14
20180333669
2018-11-22

PACKING AND COLUMN COMPRISING ONE OR MORE PACKINGS

#15
20170340985
2017-11-30

GAS DISTRIBUTION STRUCTURE FOR DISTILLATION COLUMN AND CONTROL METHOD THEREOF

#16
20170072380
2017-03-16

OPTIMIZED PACKING STRUCTURE FOR FLUID CONTACTING COLUMN AND MANUFACTURING METHOD

#17
20170056817
2017-03-02

GAS DESORPTION

#18
20170036170
2017-02-09

Separation processes and units via minimal surface area mass and heat transfer packing

#19
20160339355
2016-11-24

Oil scrubbing column

#20
20160263548
2016-09-15

DISTILLATION METHOD AND STRUCTURED PACKING

#21
20160229770
2016-08-11

Process for the purification of a cracking gas stream in an oil scrub column

#22
20160002065
2016-01-07

Ammonia removal device

#23
20150353866
2015-12-10

Biorefining of crude tall oil

#24
20150314215
2015-11-05

Evaporator and process for use thereof

#25
20150307810
2015-10-29

Biorefining of crude tall oil

#26
20150251155
2015-09-10

Exchange column contactor consisting of an arrangement of structured packings

#27
20150251154
2015-09-10

Exchange column contactor consisting of random packing compartments

#28
20150090581
2015-04-02

Rectification tower with internal heat and mass exchange and method for separation of multi-component mixtures into fractions using a rectification tower with an internal heat and mass exchange

#29
20150085600
2015-03-26

Apparatus and method for contacting a gas and a liquid

#30
20140042010
2014-02-13

Method for recovering transition metal tetrahalide and hydrocarbons from a waste stream

#31
20130313103
2013-11-28

Distillation method and structured packing

#32
20130240346
2013-09-19

Anti-thermosensitization rectification tower and the rectification process thereof for separating thermosensitive natural substances

#33
20130127075
2013-05-23

Gas-liquid contacting plate, gas-liquid contacting laminated block body, gas-liquid contacting laminated structure and gas purification device

#34
20130069254
2013-03-21

Column internal support structure

#35
20130062792
2013-03-14

Co-current vapor-liquid contacting apparatuses for offshore processes

#36
20120245372
2012-09-27

Semi-continuous deodoriser comprising a structured packing

#37
20120129242
2012-05-24

Falling film evaporator

#38
20090260791
2009-10-22

Pipe/filler unit, internal heat exchanging type distillation column and production method thereof

#39
20070193852
2007-08-23

On-board fuel fractionation system and methods to generate an engine starting fuel

#40
20070137482
2007-06-21

Co-current vapor-liquid contacting apparatus

#41
18487798
2025-12-30

Short path fractional distillation apparatus

#42
13326860
2016-07-05

Solar distillation apparatus