JPS5484516A - Production of oxalic diester - Google Patents

Production of oxalic diester

Info

Publication number
JPS5484516A
JPS5484516A JP15050477A JP15050477A JPS5484516A JP S5484516 A JPS5484516 A JP S5484516A JP 15050477 A JP15050477 A JP 15050477A JP 15050477 A JP15050477 A JP 15050477A JP S5484516 A JPS5484516 A JP S5484516A
Authority
JP
Japan
Prior art keywords
mixture
reaction
oxalic
nitrite ester
ester
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
JP15050477A
Other languages
Japanese (ja)
Other versions
JPS5628906B2 (en
Inventor
Mitsunobu Minazu
Kozo Fujii
Keigo Nishihira
Katsuhiko Mitaru
Masayoshi Yamashita
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 JP15050477A priority Critical patent/JPS5484516A/en
Publication of JPS5484516A publication Critical patent/JPS5484516A/en
Publication of JPS5628906B2 publication Critical patent/JPS5628906B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Abstract

PURPOSE: Carbon monoxide, oxygen, an alcohol containing a catalyst and nitrite ester are together subjected to reaction through a specifically circulated process to produce continuously oxalic diester for long periods of time.
CONSTITUTION: The catalytic reaction under pressure is conducted by supplying a gas containing carbon monoxide and oxygen and a mixture of an alcohol containing metal catalyst of platinum group and nitrite ester to reactor 1 to form a reaction mixture containing oxalic diester. Then the mixture is introduced into dehydrator 2 and formed water is distilled off along with the nitrite ester in the form azeotropic mixture and separated. The remaining nitrite ester is recycled to dehydrator 2. A part of the dehydration mixture is circulated to reactor 1 and the catalyst in the rest part is reduced and separated, then the objective oxalic ester is obtained.
EFFECT: Water formed by dehydration can be removed without accumulation in the reaction system and the reaction can be obtained for long periods of time.
USE: Starting materials for oxalic acid, oxamide and others.
COPYRIGHT: (C)1979,JPO&Japio
JP15050477A 1977-12-16 1977-12-16 Production of oxalic diester Granted JPS5484516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15050477A JPS5484516A (en) 1977-12-16 1977-12-16 Production of oxalic diester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15050477A JPS5484516A (en) 1977-12-16 1977-12-16 Production of oxalic diester

Publications (2)

Publication Number Publication Date
JPS5484516A true JPS5484516A (en) 1979-07-05
JPS5628906B2 JPS5628906B2 (en) 1981-07-04

Family

ID=15498301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15050477A Granted JPS5484516A (en) 1977-12-16 1977-12-16 Production of oxalic diester

Country Status (1)

Country Link
JP (1) JPS5484516A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60161006U (en) * 1984-04-02 1985-10-25 出光石油化学株式会社 heating plate
JPS63128905U (en) * 1987-02-13 1988-08-23
JPS63131923U (en) * 1987-02-20 1988-08-29
JPH0240013U (en) * 1988-09-12 1990-03-19

Also Published As

Publication number Publication date
JPS5628906B2 (en) 1981-07-04

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