Patents-Review.com
ClassID:

28446 ⎘

B01D3/22 - 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 bubbles through liquid with horizontal sieve plates or grids; Construction of sieve plates or grids

Sub-classes:
Recent Application in this class:
#1
20250312855
2025-10-09

DISTILLATION TRAY HAVING THROUGH HOLES WITH DIFFERENT DIAMETERS

 #2
20250090974
2025-03-20

FRACTIONATION TRAY WITH ADJUSTABLE OPEN AREA FOR CLEANING AND/OR THROUGHPUT CONTROL

 #3
20230052743
2023-02-16

Separation Process and Apparatus

 #4
20230008997
2023-01-12

SYSTEM AND METHOD FOR SUPER-HEAT REMOVAL IN PACKED DISTILLATION COLUMN

 #5
20220249973
2022-08-11

Distillation tray having through holes with different diameters

 #6
20220219248
2022-07-14

DISTILLATION TRAY HAVING THROUGH HOLES WITH DIFFERENT DIAMETERS

 #7
20210346818
2021-11-11

Fractionation tray with adjustable open area for cleaning and/or throughput control

 #8
20210308598
2021-10-07

METHOD FOR INSTALLING TRAYS IN PLATE TOWER

 #9
20210106926
2021-04-15

Base for a mass-transfer column

 #10
20200094161
2020-03-26

Tray for a mass-transfer column

 #11
20200011597
2020-01-09

Multiple pass, parallel flow downcomer tray for a mass transfer column

 #12
20190299117
2019-10-03

Apparatus for gas-liquid contacting

 #13
20190255457
2019-08-22

Aperture layout for vapor-liquid contact tray

 #14
20190247767
2019-08-15

Distillation column having removable tray assembly

 #15
20180369712
2018-12-27

Mass transfer column of cross flow of liquid and gas (vapour) phases

 #16
20180292129
2018-10-11

Method for liquid-vapor contacting in a mass transfer column using multiple pass, parallel flow downcomer trays

 #17
20180178172
2018-06-28

Contact tray having picketed liquid flow barriers and method involving same

 #18
20180008904
2018-01-11

Aperture layout for vapor-liquid contact tray

 #19
20170348632
2017-12-07

SCRUBBER TOWER OF A FLUE GAS PURIFICATION DEVICE

 #20
20170348609
2017-12-07

Fluid contact tray particularly for the use in an offshore fractionation column

 #21
20170304743
2017-10-26

Air stripper system and method

 #22
20170291119
2017-10-12

Process and apparatus for the preparation of alkylene glycol

 #23
20170122662
2017-05-04

Multiple pass, parallel flow downcomer tray for a mass transfer column

 #24
20170120162
2017-05-04

Curved liquid collector trays useful in pressure vessels

 #25
20160375419
2016-12-29

Fluid solids contacting device

 #26
20160368852
2016-12-22

Fouling-resistant distillation column and process for the manufacture of compounds

 #27
20160339355
2016-11-24

Oil scrubbing column

 #28
20160257637
2016-09-08

Process for preparing acrylic acid

 #29
20160229770
2016-08-11

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

 #30
20160199776
2016-07-14

Scrubber tower of a flue gas purification device

 #31
20160138864
2016-05-19

Liquid collection system

 #32
20160040929
2016-02-11

Column for thermal treatment of a fluid

 #33
20150217208
2015-08-06

Distillation column having removable tray assembly

 #34
20140357923
2014-12-04

Vapor-Liquid Separation

 #35
20140284824
2014-09-25

Base for a mass transfer column

 #36
20140171686
2014-06-19

Urea reactor tray, reactor, and production process

 #37
20140144768
2014-05-29

Fluid contactor-diffuser tray assembly

 #38
20140142342
2014-05-22

Liquid-liquid extraction column containing two distinct types of plates

 #39
20130234348
2013-09-12

Cross flow tray and support system for use in a mass transfer column

 #40
20130113128
2013-05-09

Device for bringing about a phase contact between a liquid phase and a gaseous phase, in particular a heat and mass transfer column

 #41
20130099402
2013-04-25

Valve tray

 #42
20130026667
2013-01-31

TRAYS WITH DIFFERENTIATED DRILLINGS AS A DOUBLE-FUNCTION DEVICE FOR PACKED COLUMNS

 #43
20130015037
2013-01-17

DUAL-FLOW-BAFFLE COMPOUND GASOLINE FRACTIONATOR OF ETHYLENE UNIT

 #44
20130005906
2013-01-03

Residual monomer elimination device and polyvinyl alcohol resin production method

 #45
20120111717
2012-05-10

Liquid collection and distribution device for mass transfer column and process involving same

 #46
20120024977
2012-02-02

Fluid contactor-diffuser tray assembly

 #47
20110240458
2011-10-06

Stripping column and process for extracting a component from a liquid medium

 #48
20110239863
2011-10-06

Stripping column and process for extracting a component from a liquid medium

 #49
20100244290
2010-09-30

Fluid distribution to parallel flow vapor-liquid contacting trays

 #50
20090256270
2009-10-15

Multiple downcomer tray

 #51
20090253939
2009-10-08

Process for industrially producing dialkyl carbonate and diol

 #52
20090205945
2009-08-20

Process and apparatus for alkylation of benzene with aliphatic mono-olefin compound

 #53
20090156865
2009-06-18

Industrial process for production of high-purity diol

 #54
20090145860
2009-06-11

FLUID CONTACTOR

 #55
20090107887
2009-04-30

Vapor/liquid separation apparatus

 #56
20090032980
2009-02-05

Transfer trays for mass transfer columns in offshore use

 #57
20090018370
2009-01-15

Industrial process for production of diol

 #58
20080264489
2008-10-30

Method and a Device for Handling a Liquid

 #59
20080179766
2008-07-31

Gas-liquid contact apparatus

 #60
20080150172
2008-06-26

Tray for a mass exchange column

 #61
20070262022
2007-11-15

Separating Tray for a Distillation Column

 #62
20070069405
2007-03-29

Fluid distributor for a material and heat exchange column, in particular, a packed column and column provided with such a distributor

 #63
20070040289
2007-02-22

Tray apparatus, column with same and method of assembling and using

 #64
20070017291
2007-01-25

System for monitoring and controlling unit operations that include distillation

 #65
20060260926
2006-11-23

Radial-crossflow distillation trays for divided wall column applications

 #66
20060169573
2006-08-03

Liquid/liquid exchange column

 #67
20060129012
2006-06-15

Vapor/liquid separation apparatus

 #68
20060124431
2006-06-15

Helical fractionating column

 #69
20060065988
2006-03-30

Exchange column, perforated tray assembly

 #70
20060000703
2006-01-05

High capacity purification of thermally unstable compounds

 #71
20050280169
2005-12-22

Gas-liquid contact tray with fixed valves for mass transfer

 #72
20050275121
2005-12-15

Distillation column tray configuration

 #73
20050252760
2005-11-17

Distillation apparatus for readily polymerizable compound

 #74
20050218534
2005-10-06

Contact tray having tray supported downcomers

 #75
20050211542
2005-09-29

Method for the rectifying separation of fluids containing (meth)acryl monomers

 #76
20050161316
2005-07-28

Countercurrent stripping pipe

 #77
16116236
2019-11-12

Fractionation trays with downcomers oriented at 45 degrees