ZA918701B - Continuous process for the simultaneous preparation of acetic acid and acetic anhydride - Google Patents

Continuous process for the simultaneous preparation of acetic acid and acetic anhydride

Info

Publication number
ZA918701B
ZA918701B ZA918701A ZA918701A ZA918701B ZA 918701 B ZA918701 B ZA 918701B ZA 918701 A ZA918701 A ZA 918701A ZA 918701 A ZA918701 A ZA 918701A ZA 918701 B ZA918701 B ZA 918701B
Authority
ZA
South Africa
Prior art keywords
iodide
cocatalyst
continuous process
nickel
acetic acid
Prior art date
Application number
ZA918701A
Inventor
Heinz Erpenbach
Erpenbach Heinz
Reinhard Gradl
Gradl Reinhard
Erhard Jaegers
Jaegers Erhard
Andreas Seidel
Seidel Andreas
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 ZA918701B publication Critical patent/ZA918701B/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
    • C07C51/10—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide
    • C07C51/12—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
    • 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
    • C07C53/08—Acetic acid
    • 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
    • C07C51/56—Preparation of carboxylic acid anhydrides from organic acids, their salts, their esters or their halides, e.g. by carboxylation

Abstract

A continuous process for the simultaneous preparation of acetic acid and acetic anhydride from a starting mixture of methanol and methyl acetate and, if appropriate, dimethyl ether, by reaction with carbon monoxide under anhydrous conditions at temperatures from 150 to 250 DEG C and under increased pressure in a reaction zone using a dissolved catalyst system containing a nickel compound, methyl iodide as promoter, at least one co-promoter such as alkali metal iodide, quaternary phosphonium iodide or quaternary ammonium iodide, and a cocatalyst, is characterised in that the cocatalyst used is a rhodium or iridium compound in a molar ratio of nickel : cocatalyst of 1 : (0.005 to 0.1), a nickel concentration of 0.01 to 0.1, preferably 0.015 to 0.06 mol/l is established in the reaction zone, and is carried out under an increased pressure of 30 to 100 bar.
ZA918701A 1990-11-02 1991-11-01 Continuous process for the simultaneous preparation of acetic acid and acetic anhydride ZA918701B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4034867A DE4034867A1 (en) 1990-11-02 1990-11-02 CONTINUOUS PROCESS FOR THE SIMULTANEOUS PRODUCTION OF ACETIC ACID AND ACETIC ACID ANHYDRIDE

Publications (1)

Publication Number Publication Date
ZA918701B true ZA918701B (en) 1992-08-26

Family

ID=6417522

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA918701A ZA918701B (en) 1990-11-02 1991-11-01 Continuous process for the simultaneous preparation of acetic acid and acetic anhydride

Country Status (9)

Country Link
EP (1) EP0483536B1 (en)
JP (1) JP3084107B2 (en)
KR (1) KR920009766A (en)
CN (1) CN1032133C (en)
AT (1) ATE116960T1 (en)
AU (1) AU641056B2 (en)
CA (1) CA2053828C (en)
DE (2) DE4034867A1 (en)
ZA (1) ZA918701B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4029917A1 (en) * 1990-09-21 1992-03-26 Hoechst Ag METHOD FOR THE SIMULTANEOUS PRODUCTION OF ACETIC ACID AND ACETIC ACID ANHYDRIDE
GB9120902D0 (en) * 1991-10-02 1991-11-13 Bp Chem Int Ltd Purification process
FR2735399B1 (en) * 1995-06-16 1997-07-25 Inst Francais Du Petrole NOVEL CATALYTIC COMPOSITION BASED ON TRANSITIONAL METAL COMPLEXES AND METHOD FOR THE HYDROGENATION OF UNSATURATED COMPOUNDS
GB0213485D0 (en) 2002-06-12 2002-07-24 Bp Chem Int Ltd Process
CA2705720C (en) * 2007-11-14 2016-01-05 Bp P.L.C. An improved process for the production of alcohol from a carbonaceous feedstock
EP2186787A1 (en) * 2008-11-13 2010-05-19 BP p.l.c. Hydrogenation of ethanoic acid to produce ethanol
US9012683B2 (en) * 2010-11-12 2015-04-21 Eastman Chemical Company Coproduction of acetic acid and acetic anhydride
WO2018004993A1 (en) 2016-07-01 2018-01-04 Res Usa, Llc Reduction of greenhouse gas emission
US9981896B2 (en) 2016-07-01 2018-05-29 Res Usa, Llc Conversion of methane to dimethyl ether
WO2018004994A1 (en) 2016-07-01 2018-01-04 Res Usa, Llc Fluidized bed membrane reactor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717670A (en) * 1968-08-02 1973-02-20 Monsanto Co Production of carboxylic acids and esters
DE3429180A1 (en) * 1984-08-08 1986-02-20 Hoechst Ag, 6230 Frankfurt METHOD FOR PRODUCING ACETIC ACID ANHYDRIDE AND GGF. ACETIC ACID
DE3429179A1 (en) * 1984-08-08 1986-02-20 Hoechst Ag, 6230 Frankfurt METHOD FOR THE SIMULTANEOUS PRODUCTION OF CARBONIC ACIDS AND CARBONIC ACID ANHYDRIDES AND IF ANY. CARBONIC ACID ESTERS

Also Published As

Publication number Publication date
ATE116960T1 (en) 1995-01-15
EP0483536A3 (en) 1992-11-25
JP3084107B2 (en) 2000-09-04
DE4034867A1 (en) 1992-05-07
AU8700391A (en) 1992-05-07
CA2053828A1 (en) 1992-05-03
JPH04264049A (en) 1992-09-18
EP0483536A2 (en) 1992-05-06
CN1032133C (en) 1996-06-26
DE59104235D1 (en) 1995-02-23
CA2053828C (en) 2002-04-23
EP0483536B1 (en) 1995-01-11
CN1061022A (en) 1992-05-13
KR920009766A (en) 1992-06-25
AU641056B2 (en) 1993-09-09

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