JPS55162415A - Production of phosgene - Google Patents

Production of phosgene

Info

Publication number
JPS55162415A
JPS55162415A JP6949379A JP6949379A JPS55162415A JP S55162415 A JPS55162415 A JP S55162415A JP 6949379 A JP6949379 A JP 6949379A JP 6949379 A JP6949379 A JP 6949379A JP S55162415 A JPS55162415 A JP S55162415A
Authority
JP
Japan
Prior art keywords
cocl
liq
reaction
gaseous
residue
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
JP6949379A
Other languages
Japanese (ja)
Other versions
JPS6129886B2 (en
Inventor
Kiyoshi Fukui
Junichiro Kita
Susumu Fujimura
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.)
Ube Corp
Original Assignee
Ube Industries Ltd
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 Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP6949379A priority Critical patent/JPS55162415A/en
Publication of JPS55162415A publication Critical patent/JPS55162415A/en
Publication of JPS6129886B2 publication Critical patent/JPS6129886B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To produce phosgene in a high yield by reacting CO and Cl2 in chlorobenzenes in the presence of triphenylphosphine oxide and/or triphenylphosphine dichloride as catalyst.
CONSTITUTION: In the presence of the above-mentioned catalyst Cl2 is dissolved in chlorobenzene and/or dichlorobenzene, and by blowing gaseous CO into the soln. COCl2 is formed quantitatively. CO is preferably used in excess of Cl2, and the reaction temp. is usually 0W200°C. The liq. reaction product is taken out of the CO atmosphere, and gaseous COCl2 is separated from the liq. product by making the pressure lower than the reaction pressure or other method. The COCl2-free liq. residue is recycled to the reaction of CO and Cl2, and repeated use of this liq. residue results in little lowering in COCl2 yield.
COPYRIGHT: (C)1980,JPO&Japio
JP6949379A 1979-06-05 1979-06-05 Production of phosgene Granted JPS55162415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6949379A JPS55162415A (en) 1979-06-05 1979-06-05 Production of phosgene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6949379A JPS55162415A (en) 1979-06-05 1979-06-05 Production of phosgene

Publications (2)

Publication Number Publication Date
JPS55162415A true JPS55162415A (en) 1980-12-17
JPS6129886B2 JPS6129886B2 (en) 1986-07-10

Family

ID=13404284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6949379A Granted JPS55162415A (en) 1979-06-05 1979-06-05 Production of phosgene

Country Status (1)

Country Link
JP (1) JPS55162415A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5693853A (en) * 1994-11-15 1997-12-02 Chematur Engineering Ab Phosgenation method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5693853A (en) * 1994-11-15 1997-12-02 Chematur Engineering Ab Phosgenation method

Also Published As

Publication number Publication date
JPS6129886B2 (en) 1986-07-10

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