JPS5721336A - Preparation of acetic anhydride - Google Patents

Preparation of acetic anhydride

Info

Publication number
JPS5721336A
JPS5721336A JP9468780A JP9468780A JPS5721336A JP S5721336 A JPS5721336 A JP S5721336A JP 9468780 A JP9468780 A JP 9468780A JP 9468780 A JP9468780 A JP 9468780A JP S5721336 A JPS5721336 A JP S5721336A
Authority
JP
Japan
Prior art keywords
rhodium
iodine
per
carboxylic acid
acetic anhydride
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP9468780A
Other languages
Japanese (ja)
Other versions
JPS6314700B2 (en
Inventor
Hirosuke Wada
Akio Baba
Noboru Wada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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 Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP9468780A priority Critical patent/JPS5721336A/en
Publication of JPS5721336A publication Critical patent/JPS5721336A/en
Publication of JPS6314700B2 publication Critical patent/JPS6314700B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain acetic anhydride useful as a raw material for acetylcellulose in high yield, by reacting methyl acetate with CO in the presence of rhodium, iodine, N-methyl-2-pyrrolidone and a lower aliphatic carboxylic acid in uniform liquid phase from beginning to end.
CONSTITUTION: In preparing acetic anhydride by carbonylation of methyl acetate, rhodium, iodine, N-methyl-2-pyrrolidone(A), and lower aliphatic carboxylic acid are used as catalysts. A salt, carbonyl complex, chelate compound, etc. of rhodium are used as rhodium in state where rhodium is dissolved in liquid phase in a ratio of 0.1W10mg atom rhodium per mole methyl acetate. A simple substance of iodine, alkali metal iodine, iodoalkyl, etc. is used as iodine in an amount to give 0.1W 100mol (simple substance) per g atom rhodium. The amount of the compound A is 1W1,000mol per g atom rhodium and the amount of the lower aliphatic carboxylic acid (preferably acetic acid) is 0.1W20mol per mol compound A.
COPYRIGHT: (C)1982,JPO&Japio
JP9468780A 1980-07-11 1980-07-11 Preparation of acetic anhydride Granted JPS5721336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9468780A JPS5721336A (en) 1980-07-11 1980-07-11 Preparation of acetic anhydride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9468780A JPS5721336A (en) 1980-07-11 1980-07-11 Preparation of acetic anhydride

Publications (2)

Publication Number Publication Date
JPS5721336A true JPS5721336A (en) 1982-02-04
JPS6314700B2 JPS6314700B2 (en) 1988-04-01

Family

ID=14117102

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9468780A Granted JPS5721336A (en) 1980-07-11 1980-07-11 Preparation of acetic anhydride

Country Status (1)

Country Link
JP (1) JPS5721336A (en)

Also Published As

Publication number Publication date
JPS6314700B2 (en) 1988-04-01

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