ZA846823B - Process for separating iodine and its compounds from the carbonylation products obtained by subjecting dimethylether,methyl acetate or methanol to a carbonylation reaction - Google Patents

Process for separating iodine and its compounds from the carbonylation products obtained by subjecting dimethylether,methyl acetate or methanol to a carbonylation reaction

Info

Publication number
ZA846823B
ZA846823B ZA846823A ZA846823A ZA846823B ZA 846823 B ZA846823 B ZA 846823B ZA 846823 A ZA846823 A ZA 846823A ZA 846823 A ZA846823 A ZA 846823A ZA 846823 B ZA846823 B ZA 846823B
Authority
ZA
South Africa
Prior art keywords
carbonylation
dimethylether
subjecting
methanol
compounds
Prior art date
Application number
ZA846823A
Inventor
Heinz Erpenbach
Klaus Gehrmann
Alexander Ohorodnik
Winfried Lork
Herbert Joest
Original Assignee
Hoechst Ag
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
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of ZA846823B publication Critical patent/ZA846823B/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
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/54—Preparation of carboxylic acid anhydrides
    • C07C51/573—Separation; Purification; Stabilisation; Use of additives
    • 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
    • C07C67/60—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Furan Compounds (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

1. Process for separating iodine and its compounds from the carbonylation products acetic acid, acetic anhydride or ethylidene diacetate obtained by subjecting dimethylether, methyl acetate or methanol to carbonylation, characterized in that, in order to reduce the quantity of total iodine contaminating the carbonylation products to less than 20 ppb iodine, the carbonylation products are treated at temperatures of 50 to 200 degrees C with hydrogen in the presence of at least one noble metal selected from group VIII of the Periodic System of the elements, and separated from the noble metal.
ZA846823A 1983-09-01 1984-08-31 Process for separating iodine and its compounds from the carbonylation products obtained by subjecting dimethylether,methyl acetate or methanol to a carbonylation reaction ZA846823B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833331548 DE3331548A1 (en) 1983-09-01 1983-09-01 METHOD FOR SEPARATING IODINE AND ITS COMPOUNDS FROM CARBONYLATION PRODUCTS OBTAINED FROM CARBONYLATING DIMETHYL ETHER, METHYL ACETATE OR METHANOL

Publications (1)

Publication Number Publication Date
ZA846823B true ZA846823B (en) 1985-05-29

Family

ID=6207989

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA846823A ZA846823B (en) 1983-09-01 1984-08-31 Process for separating iodine and its compounds from the carbonylation products obtained by subjecting dimethylether,methyl acetate or methanol to a carbonylation reaction

Country Status (9)

Country Link
EP (1) EP0143179B1 (en)
JP (1) JPS6072837A (en)
AT (1) ATE22550T1 (en)
AU (1) AU568675B2 (en)
BR (1) BR8404372A (en)
CA (1) CA1234149A (en)
DE (2) DE3331548A1 (en)
MX (1) MX160501A (en)
ZA (1) ZA846823B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792420A (en) * 1985-07-24 1988-12-20 Eastman Kodak Company Purification of carboxylic acid anhydrides
DE3534070A1 (en) * 1985-09-25 1987-04-02 Hoechst Ag METHOD FOR SEPARATING IODINE AND ITS COMPOUNDS FROM CARBONYLATION PRODUCTS OBTAINED FROM CARBONYLATING DIMETHYL ETHER, METHYL ACETATE OR METHANOL
DE3612504A1 (en) * 1985-09-30 1987-04-09 Hoechst Ag METHOD FOR SEPARATING IODINE AND ITS COMPOUNDS FROM CARBONYLATING PRODUCTS CONTAINING CARBBONYLATION OF DIMETHYL ETHER, METHYL ACETATE OR METHANOL
GB8822661D0 (en) * 1988-09-27 1988-11-02 Bp Chem Int Ltd Removal of iodine/iodide impurities
DE69116879T2 (en) * 1990-08-15 1996-06-20 Eastman Chem Co METHOD AND PURIFICATION OF ACETIC ACID ANHYDRIDE AND ACETIC ACID

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246195A (en) * 1978-10-06 1981-01-20 Halcon Research And Development Corporation Purification of carbonylation products
DE3137782A1 (en) * 1981-09-23 1983-03-31 Hoechst Ag, 6230 Frankfurt METHOD FOR RECOVERY OF IODINE COMPOUNDS FROM THE EXHAUST GAS FROM CARBONYLATION REACTIONS
DE3149094A1 (en) * 1981-12-11 1983-06-16 Hoechst Ag, 6230 Frankfurt METHOD FOR REMOVING ACETONE FROM REACTION MIXTURES FROM CARBONYLATION REACTIONS
DE3329781A1 (en) * 1983-08-18 1985-02-28 Hoechst Ag, 6230 Frankfurt METHOD FOR SEPARATING IODINE AND ITS COMPOUNDS FROM CARBONYLATION PRODUCTS OBTAINED FROM CARBONYLATING DIMETHYL ETHER, METHYL ACETATE OR METHANOL
DE3534070A1 (en) * 1985-09-25 1987-04-02 Hoechst Ag METHOD FOR SEPARATING IODINE AND ITS COMPOUNDS FROM CARBONYLATION PRODUCTS OBTAINED FROM CARBONYLATING DIMETHYL ETHER, METHYL ACETATE OR METHANOL

Also Published As

Publication number Publication date
AU568675B2 (en) 1988-01-07
AU3263784A (en) 1985-03-07
DE3331548A1 (en) 1985-03-21
JPS6072837A (en) 1985-04-24
MX160501A (en) 1990-03-12
ATE22550T1 (en) 1986-10-15
EP0143179B1 (en) 1986-10-01
JPH0528212B2 (en) 1993-04-23
BR8404372A (en) 1985-07-30
DE3460873D1 (en) 1986-11-06
CA1234149A (en) 1988-03-15
EP0143179A1 (en) 1985-06-05

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