JPS5484517A - Production of oxalic diester - Google Patents

Production of oxalic diester

Info

Publication number
JPS5484517A
JPS5484517A JP15050577A JP15050577A JPS5484517A JP S5484517 A JPS5484517 A JP S5484517A JP 15050577 A JP15050577 A JP 15050577A JP 15050577 A JP15050577 A JP 15050577A JP S5484517 A JPS5484517 A JP S5484517A
Authority
JP
Japan
Prior art keywords
reaction
mixture
catalyst
dehydration
reactor
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
JP15050577A
Other languages
Japanese (ja)
Other versions
JPS5628907B2 (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 JP15050577A priority Critical patent/JPS5484517A/en
Publication of JPS5484517A publication Critical patent/JPS5484517A/en
Publication of JPS5628907B2 publication Critical patent/JPS5628907B2/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

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PURPOSE: The reaction between carbon monoxide, an alcohol containing a catalyst, and a nitrite ester is conducted in a specific circulating process containing a system for dehydration of the reaction mixture and another system for distillation purification to produce continuously an oxalic diester used for analytical reagents and solvents.
CONSTITUTION: The catalytic reaction under pressure is conduced in reactor 1 by supplying a gas containing carbon monoxide and oxygen and a mixture of an alcohol containing a metal catalyst of platinum group and nitrite ester to form a reaction mixture containing an oxalic diester. Then the reaction mixture is introduced into dehydrator 2 where water formed by dehydration is distilled off in the form of azeotropic mixture. A part of the dehydration mixture is circulated to reactor 1 and the rest is sent to catalyst separator 5 where the catalyst is separated, and led to distillation column 6. The rest is fractionated into the part containing the nitrite ester and the alcohol, which is recycled to reactor 1, and the residue, from which the objective oxalic diester is obtained.
EFFECT: As the water formed during the reaction is removed without accumulation in the reaction system, the reaction can be continued for long periods of time.
COPYRIGHT: (C)1979,JPO&Japio
JP15050577A 1977-12-16 1977-12-16 Production of oxalic diester Granted JPS5484517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15050577A JPS5484517A (en) 1977-12-16 1977-12-16 Production of oxalic diester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15050577A JPS5484517A (en) 1977-12-16 1977-12-16 Production of oxalic diester

Publications (2)

Publication Number Publication Date
JPS5484517A true JPS5484517A (en) 1979-07-05
JPS5628907B2 JPS5628907B2 (en) 1981-07-04

Family

ID=15498323

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15050577A Granted JPS5484517A (en) 1977-12-16 1977-12-16 Production of oxalic diester

Country Status (1)

Country Link
JP (1) JPS5484517A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05193377A (en) * 1992-03-19 1993-08-03 Yanmar Diesel Engine Co Ltd Excavating machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05193377A (en) * 1992-03-19 1993-08-03 Yanmar Diesel Engine Co Ltd Excavating machine

Also Published As

Publication number Publication date
JPS5628907B2 (en) 1981-07-04

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