Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Chemistry
Class Information
Number: 570/177
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Halogen containing > Fluorine containing > Purification or recovery
Description: Process of purifying or recovering a fluorine containing compound.










Sub-classes under this class:

Class Number Class Name Patents
570/178 Including distillation 178
570/180 Including extraction with organic liquid 54
570/179 Solid sorbent utilized 78


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8628644 Utilizing ionic liquids for hydrofluorocarbon separation Jan. 14, 2014
8623233 Azeotropic and azeotrope-like compositions of Z-1,1,1,4,4,4-hexafluoro-2-butene, trans-1,2-dichloroethylene, and 1,1,1,3,3-pentafluorobutane Jan. 7, 2014
8541634 Azeotrope-like compositions of (Z)-1-chloro-3,3,3-trifluoropropene and hydrogen fluoride Sep. 24, 2013
8524956 Method of purifying (Z)-1-chloro-3,3,3-trifluoropropene Sep. 3, 2013
8519201 Process for separating hydrogen fluoride from organic feedstocks Aug. 27, 2013
8497401 Azeotrope-like compositions of pentafluoropropane, chlorotrifluoropropene, and hyrdrogen fluoride Jul. 30, 2013
8481793 Method for separating halocarbons Jul. 9, 2013
8426658 Azeotrope-like composition of 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) and hydrogen fluoride (HF) Apr. 23, 2013
8404906 Process for producing 1,2,3,4-tetrachlorohexafluorobutane Mar. 26, 2013
8344192 Process for the recovery of fluoromonomers Jan. 1, 2013
8299280 Recovery of components making up a liquid mixture Oct. 30, 2012
8269052 Method for producing pentafluoroethane Sep. 18, 2012
8252965 Method for separating halocarbons Aug. 28, 2012
8252964 Process for the purification of 2,3,3,3-tetrafluoro-1-propene (HFO-1234yf) Aug. 28, 2012
8232436 Process for purifying a fluorine compound Jul. 31, 2012
8212092 Process for the reduction of acidic contaminates in fluorinated hydrocarbons Jul. 3, 2012
8168837 Process for separating hydrogen fluoride from organic feedstocks May. 1, 2012
8058485 Process for the production of dichlorotrifluoroethane Nov. 15, 2011
8049045 Process for production of dichlorotrifluoroethane Nov. 1, 2011
8034251 Azeotropic compositions of 2-chloro-3,3,3-trifluoropropene (HCFC-1233xf), 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb), and hydrogen fluoride (HF) Oct. 11, 2011
8003832 Process for recovering pentafluoroethane, and production method of pentafluoroethane involving the process Aug. 23, 2011
7981312 Processes for producing and compositions comprising 2,3,3,3-tetrafluoropropene and/or 1,2,3,3-tetrafluoropropene Jul. 19, 2011
7968745 Purification process of iodixanol Jun. 28, 2011
7872162 Process for the obtention of purified heptafluoropropane Jan. 18, 2011
7803975 Process for separating a fluoroolefin from HF by liquid-liquid extraction Sep. 28, 2010
7781626 Azeotrope-like compositions of 1,1,1,3,3-pentafluorobutane and hydrogen fluoride Aug. 24, 2010
7728183 Selectively reacting olefins having a terminal CF2 group in a mixture Jun. 1, 2010
7498402 Method for purifying material to be treated and method for producing coagulated material Mar. 3, 2009
7495063 Reduced oligomer concentration in high purity polyalkylene glycols Feb. 24, 2009
7468466 Process for producing hexafluoroethane and use thereof Dec. 23, 2008
7459591 Process for the obtention of purified heptafluoropropane Dec. 2, 2008
7405334 Process for the reduction of acidic contaminates in fluorinated hydrocarbons Jul. 29, 2008
7371363 Methods of purifying hydrogen fluoride May. 13, 2008
7364908 Separation of fluorous compounds Apr. 29, 2008
7361795 Azeotrope-like compositions of 1,1,1,3,3-pentafluorobutane and hydrogen fluoride Apr. 22, 2008
7335805 Processes for purifying reaction products and processes for separating chlorofluorinated compounds Feb. 26, 2008
7332635 Processes for purifying chlorofluorinated compounds Feb. 19, 2008
7208644 Production and use of hexafluoroethane Apr. 24, 2007
7186869 Purification of saturated halocarbons Mar. 6, 2007
7183448 Azeotropic composition, comprising 1, 1, 1, 3,3-pentafluoropropane and 1, 1, 1-trifluoro-3-chloro-2-propene, method of separation and purification of the same, and process for producing 1, 1, Feb. 27, 2007
7183449 Process for the treatment of the by-products from a reaction for the production of organic compounds Feb. 27, 2007
7161049 Process for purifying hydrofluoropropanes Jan. 9, 2007
7157550 Purification process of thermoprocessable tetrafluoroethylene copolymers Jan. 2, 2007
7151197 Processes for purifying chlorofluorinated compounds and processes for purifying CF3CFHCF3 Dec. 19, 2006
7094935 Adsorbent for purifying perfluorocarbon, process for producing same, high purity octafluoropropane and octafluorocyclobutane, and use thereof Aug. 22, 2006
7084316 Process for purifying pentafluoroethane, process for producing the same, and use thereof Aug. 1, 2006
7084315 Removal of (hydro)haloalkene impurities from product streams Aug. 1, 2006
7074974 Process for the production of fluoroethane and use of the same Jul. 11, 2006
7074434 Process for the separation of a mixture comprising at least one hydrofluoroalkane and hydrogen fluoride, processes for the preparation of a hydrofluoroalkane and azeotropic compositions Jul. 11, 2006
7053253 Process for purifying hexafluoropropene dimers May. 30, 2006

1 2 3 4










 
 
  Recently Added Patents
Combination immunotherapy for the treatment of cancer
Method of and apparatus for evaluating an optimal irradiation amount of an electron beam for drawing a pattern onto a sample
Luggage
Cache memory control device, semiconductor integrated circuit, and cache memory control method
Brushless motor drive apparatus and drive method
Silicon-on-insulator (SOI) structure configured for reduced harmonics and method of forming the structure
Variety corn line NPAA2720
  Randomly Featured Patents
Multi-way portable writing desk
Stand structure for supporting electric high voltage equipment
Benzimidazo-[1,2-a]-quinolines
Test apparatus for parallel testing a number of electronic components and a method for calibrating the test apparatus
Communication and coordination between web services in a cloud-based computing environment
Outdoor LED system
Optical card reader for setting frequency division ratio of programmable counter for use in synthesizer tuners
Polishing material having polishing particles and method for making the same
Thermal air flow meter
Personal information system using proximity-based short-range wireless links