HK1036971A1 - Production of organic compounds which are low in fluoride. - Google Patents

Production of organic compounds which are low in fluoride.

Info

Publication number
HK1036971A1
HK1036971A1 HK01108038A HK01108038A HK1036971A1 HK 1036971 A1 HK1036971 A1 HK 1036971A1 HK 01108038 A HK01108038 A HK 01108038A HK 01108038 A HK01108038 A HK 01108038A HK 1036971 A1 HK1036971 A1 HK 1036971A1
Authority
HK
Hong Kong
Prior art keywords
production
organic compounds
fluoride
hlf
low
Prior art date
Application number
HK01108038A
Inventor
Max Braun
Johannes Eicher
Francine Janssens
Kerstin Eichholz
Stefan Palsherm
Original Assignee
Solvay Fluor & Derivate
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19829909A external-priority patent/DE19829909C1/en
Priority claimed from DE19850010A external-priority patent/DE19850010A1/en
Application filed by Solvay Fluor & Derivate filed Critical Solvay Fluor & Derivate
Publication of HK1036971A1 publication Critical patent/HK1036971A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/58—Preparation of carboxylic acid halides
    • C07C51/64—Separation; Purification; Stabilisation; Use of additives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
    • C07C53/15—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen containing halogen
    • C07C53/16—Halogenated acetic acids
    • C07C53/18—Halogenated acetic acids containing fluorine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C59/185—Saturated compounds having only one carboxyl group and containing keto groups
    • C07C59/21—Saturated compounds having only one carboxyl group and containing keto groups containing halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/14—Preparation of carboxylic acid esters from carboxylic acid halides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/56—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/58—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Production of organic compounds (I) having a low content of hydrolyzable fluoride (HLF) involves contacting HLF-contaminated (I) with a removing agent for HLF selected from inorganic oxide sorbents (II) and onium salts (III) of carboxylic acids. An Independent claim is also included for 4-chloro-4,4-difluoroacetoacetic acid, 4,4-difluoroacetoacetic acid and their onium salts.
HK01108038A 1998-07-06 2001-11-15 Production of organic compounds which are low in fluoride. HK1036971A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19829909A DE19829909C1 (en) 1998-07-06 1998-07-06 Reducing hydrolyzable fluorine content of organic compounds, especially halogenated carboxylic acids or derivatives for use e.g. as pharmaceutical or agrochemical intermediates
DE19850010A DE19850010A1 (en) 1998-10-30 1998-10-30 Reducing hydrolyzable fluorine content of organic compounds, especially halogenated carboxylic acids or derivatives for use e.g. as pharmaceutical or agrochemical intermediates
PCT/EP1999/004477 WO2000001647A2 (en) 1998-07-06 1999-06-29 Production of organic compounds which are low in fluoride

Publications (1)

Publication Number Publication Date
HK1036971A1 true HK1036971A1 (en) 2002-01-25

Family

ID=26047200

Family Applications (1)

Application Number Title Priority Date Filing Date
HK01108038A HK1036971A1 (en) 1998-07-06 2001-11-15 Production of organic compounds which are low in fluoride.

Country Status (8)

Country Link
EP (2) EP1481958B1 (en)
JP (1) JP4621352B2 (en)
CN (1) CN1207256C (en)
CA (1) CA2336812A1 (en)
DE (2) DE59914714D1 (en)
HK (1) HK1036971A1 (en)
HU (1) HUP0102558A3 (en)
WO (1) WO2000001647A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5340287B2 (en) * 2007-08-16 2013-11-13 ソルヴェイ（ソシエテ アノニム） Process for the preparation of esters of 4-fluoro-substituted 3-oxo-alkanoic acids
KR20100126562A (en) * 2008-03-27 2010-12-01 솔베이 플루오르 게엠베하 Preparation of fluorinated organic carbonates depleted in hf using a specific absorbent
JP5521625B2 (en) * 2010-02-22 2014-06-18 セントラル硝子株式会社 Method for producing difluoroacetic acid ester
CN102304038B (en) * 2011-06-11 2015-04-01 山东兴氟新材料有限公司 Device and method for lowering concentration of fluorine ions carried in production of trifluoroacetic acid
WO2015111726A1 (en) * 2014-01-27 2015-07-30 旭硝子株式会社 Method for suppressing corrosion of glass
CN107778165A (en) * 2016-08-30 2018-03-09 天津市科密欧化学试剂有限公司 A kind of purification process of chromatographically pure trifluoroacetic acid

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1158490B (en) * 1960-12-17 1963-12-05 Hoechst Ag Process for the production of fluorine-containing acetoacetic acid chlorides or their solutions
GB1314607A (en) * 1969-09-12 1973-04-26 Kureha Chemical Ind Co Ltd Method for recovering perfluorinated emulsifiers
BE794525A (en) * 1972-01-25 1973-07-25 Hoechst Ag PROCESS FOR PREPARING TRIFLUOROACETYL CHLORIDE
JPS5993025A (en) * 1982-11-16 1984-05-29 Hodogaya Chem Co Ltd Preparation of dichlorofluoroacetyl chloride
DE3311751A1 (en) * 1983-03-31 1984-10-04 Hoechst Ag, 6230 Frankfurt Purification of fluorohydrocarbons
JPS60239437A (en) * 1984-05-15 1985-11-28 Asahi Glass Co Ltd Production of trifluoroacetic acid and its chloride
JPH0678270B2 (en) * 1987-09-29 1994-10-05 セントラル硝子株式会社 Method for purifying fluorocarbon compound
FR2644451B1 (en) * 1989-03-20 1991-09-20 Norsolor Sa USE OF ZEOLITHS FOR THE PURIFICATION OF SATURATED CARBOXYLIC ACIDS WITH A RESIDUAL FLUORIDE CONTENT AND CORRESPONDING PURIFICATION METHOD
DE4213154C1 (en) * 1992-04-22 1993-06-17 Hoechst Ag, 6230 Frankfurt, De
DE4313793A1 (en) * 1993-04-27 1994-11-03 Solvay Fluor & Derivate Production of carboxylic acid halides and carboxylate salts
ATE161819T1 (en) * 1993-04-27 1998-01-15 Solvay Fluor & Derivate METHOD FOR PRODUCING CARBOXYLIC ACID ESTERS FROM CARBOXYLIC ACID HALIDES AND ALCOHOLS
DE19732031C1 (en) * 1997-07-25 1999-04-22 Solvay Fluor & Derivate 2-phase production of carboxylic acid esters

Also Published As

Publication number Publication date
WO2000001647A3 (en) 2000-04-06
CA2336812A1 (en) 2000-01-13
EP1094999A2 (en) 2001-05-02
DE59910530D1 (en) 2004-10-21
JP2002526385A (en) 2002-08-20
CN1207256C (en) 2005-06-22
CN1305446A (en) 2001-07-25
HUP0102558A2 (en) 2001-11-28
JP4621352B2 (en) 2011-01-26
HUP0102558A3 (en) 2002-08-28
WO2000001647A2 (en) 2000-01-13
DE59914714D1 (en) 2008-05-08
EP1481958B1 (en) 2008-03-26
EP1094999B1 (en) 2004-09-15
EP1481958A1 (en) 2004-12-01

Similar Documents

Publication Publication Date Title
IL138706A0 (en) Acidic composition containing fluoride for removal of photoresists and etch residues
AU7573394A (en) Method and apparatus for recovering carboxylic acids from dilute solutions
WO2003083876A3 (en) Method and apparatus for aligning patterns on a substrate
AU2003231042A1 (en) Method of removing iron contaminants from liquid streams during the manufacture and/or purification of aromatic acids
WO1999067883A3 (en) Processing circuit and method for variable-length coding and decoding
PL344576A1 (en) Method for recovering fluorinated alkanoic acids from waste waters
DE59903664D1 (en) METHOD FOR RECOVERY OF FLUORINATED ALKANIC ACIDS FROM WASTEWATER
CA2282555A1 (en) Wood preservative for subsequent application
ATE313821T1 (en) METHOD AND DEVICE FOR DETERMINING THE POSITION OF AN AUTONOMOUS DEVICE
AU1831000A (en) Method of treating chronic obstructive pulmonary disease
AU2700592A (en) Process for removing iodide compounds from carboxylic acids and carboxylic acid anhydrides
HK1036971A1 (en) Production of organic compounds which are low in fluoride.
FI990264A0 (en) Method of informing other layers in a protocol stack about a protocol in use
CA2238439A1 (en) Method for preparation of type ii collagen
EP0935184A3 (en) Information processing apparatus, mode control method and storage medium
DE69936336D1 (en) METHOD FOR RECOVERING ONIUM HYDROXYDEN FROM SOLUTIONS WITH ONIUM COMPONENTS
AU2001267441A1 (en) Cathode for electrochemical regeneration of permanganate etching solutions
AU2003278114A1 (en) Flexible method for the joint production of (i) formic acid, (ii) a carboxylic acid comprising at least two carbon atoms and/or the derivatives thereof, and (iii) a carboxylic acid anhydride
DE69931418D1 (en) Process for removing carbon dioxide from gases
CA2143254A1 (en) Method for the Removal of Thallium
WO2003021595A1 (en) Communication apparatus communicating with recording medium memory and recording medium drive apparatus
CA2189345A1 (en) Method of removing chloride ion or a compound thereof from a surface contaminated therewith
DE60230145D1 (en) METHOD FOR THE PRODUCTION OF A SORBITOL-CONTAINING TOOTHPASTE AND SORBITOL SYRUP
AU6263286A (en) Method of removing metal contaminants from solutions
WO1995002712A3 (en) Use of carboxylic acids in agents for the treatment of metal surfaces

Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20090629