Patents-Review.com
ClassID:

84369 ⎘

C01B7/195 - CPC Classification

Classification description:

Halogens; Halogen acids; Fluorine; Hydrogen fluoride; Hydrogen fluoride Separation; Purification

Sub-classes:
Recent Application in this class:
#1
20210284532
2021-09-16

METHOD FOR PRODUCING HYDROGEN FLUORIDE FROM HEXAFLUOROSILICIC ACID

 #2
20210008489
2021-01-14

Production device and production method of electronic grade hydrofluoric acid

 #3
20180312453
2018-11-01

Composition comprising HF and 1,3,3,3-tetrafluoropropene

 #4
20170217859
2017-08-03

Method for producing chloropropene and method for producing 2,3,3,3-tetrafluoropropene

 #5
20160317965
2016-11-03

Method for treating sulfur hexafluoride using radiation and apparatus for collecting and treating by-products

 #6
20160130200
2016-05-12

Method for separating and recovering 2,3,3,3-tetrafluoropropene and hydrofluoric acid

 #7
20160107892
2016-04-21

METHOD FOR SEPARATING HF FROM HF/HALOGENATED HYDROCARBON MIXTURES USING IONIC LIQUIDS

 #8
20160102250
2016-04-14

Reverse osmosis for purifying mixtures of hydrofluoric acid and nitric acid

 #9
20160031773
2016-02-04

Composition comprising HF and 1,3,3,3-tetrafluoropropene

 #10
20140296585
2014-10-02

Method for separating and recovering 2,3,3,3-tetrafluoropropene and hydrofluoric acid

 #11
20140294711
2014-10-02

Method of recycling hydrochloric and hydrofluoric acid effluent

 #12
20130259793
2013-10-03

Method for Obtaining or Recovering Nitric Acid and Hydrofluoric Acid from Solutions of Stainless Steel Pickling Systems

 #13
20130078180
2013-03-28

Method for producing high concentration aqueous HF solutions

 #14
20120085640
2012-04-12

Fluorine Gas Generation Device

 #15
20110286911
2011-11-24

Hydrogen fluoride purification method

 #16
20110207975
2011-08-25

INTEGRATED PROCESS TO PRODUCE 2,3,3,3-TETRAFLUOROPROPENE

 #17
20110177693
2011-07-21

Reversible water-free process for the separation of acid-containing gas mixtures

 #18
20110172472
2011-07-14

Process for producing 1,3,3,3-tetrafluoropropene

 #19
20110105807
2011-05-05

Integrated process for fluoro-olefin production

 #20
20110097253
2011-04-28

FLUORINE PURIFICATION

 #21
20100280292
2010-11-04

METHOD OF RECOVERING HYDROFLUORIC ACID

 #22
20100247412
2010-09-30

Method for Removal of CIO3F

 #23
20100139481
2010-06-10

Method of treating a gas system

 #24
20100099931
2010-04-22

Process for purifying a fluorine compound

 #25
20090242840
2009-10-01

Reversible Water-Free Process for the Separation of Acid-Containing Gas Mixtures

 #26
20090240090
2009-09-24

Integrated process to produce 2,3,3,3-tetrafluoropropene

 #27
20090211449
2009-08-27

Method for separating gas

 #28
20090118555
2009-05-07

Integrated HFC trans-1234ze manufacture process

 #29
20080051610
2008-02-28

Integrated HFC trans-1234ze manufacture process

 #30
20080033219
2008-02-07

Process for separation of a mixture comprising at least one hydrofluoroalkane

 #31
20080003172
2008-01-03

Continuous hydrolysis of hexafluoroarsenic acid

 #32
20070129582
2007-06-07

Production processes and systems

 #33
20070106099
2007-05-10

Production processes and systems

 #34
20070098624
2007-05-03

Andhydrous hydrogen fluoride composition and method of producing the same

 #35
20070021635
2007-01-25

Process for the separation of a mixture comprising at least one hydrofluoroalkane

 #36
20060133984
2006-06-22

Process

 #37
20050163695
2005-07-28

Process for the purification of NF

 #38
20050013764
2005-01-20

Methods of purifying hydrogen fluoride