JPS5212127A - Process for recovery of methylmethacrylate - Google Patents

Process for recovery of methylmethacrylate

Info

Publication number
JPS5212127A
JPS5212127A JP8789275A JP8789275A JPS5212127A JP S5212127 A JPS5212127 A JP S5212127A JP 8789275 A JP8789275 A JP 8789275A JP 8789275 A JP8789275 A JP 8789275A JP S5212127 A JPS5212127 A JP S5212127A
Authority
JP
Japan
Prior art keywords
methylmethacrylate
recovery
sulfuric acid
revoer
methylester
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.)
Pending
Application number
JP8789275A
Other languages
Japanese (ja)
Inventor
Yutaka Kido
Yasumasa Yamamoto
Toshio Tada
Yukio Muto
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 Rayon Co Ltd
Original Assignee
Mitsubishi Rayon Co 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 Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP8789275A priority Critical patent/JPS5212127A/en
Publication of JPS5212127A publication Critical patent/JPS5212127A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
    • C07C67/317—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
    • C07C67/327—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups by elimination of functional groups containing oxygen only in singly bound form
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: Methylmethacrylate is obtained by the reaction of acetone cyanhydrin with sulfuric acid and methyl alcohol, and the still residue is contacted with aqueous sulfuric acid solution containing acid ammonium sulfate to revoer methacrylic acid and its methylester.
COPYRIGHT: (C)1977,JPO&Japio
JP8789275A 1975-07-17 1975-07-17 Process for recovery of methylmethacrylate Pending JPS5212127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8789275A JPS5212127A (en) 1975-07-17 1975-07-17 Process for recovery of methylmethacrylate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8789275A JPS5212127A (en) 1975-07-17 1975-07-17 Process for recovery of methylmethacrylate

Publications (1)

Publication Number Publication Date
JPS5212127A true JPS5212127A (en) 1977-01-29

Family

ID=13927524

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8789275A Pending JPS5212127A (en) 1975-07-17 1975-07-17 Process for recovery of methylmethacrylate

Country Status (1)

Country Link
JP (1) JPS5212127A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011079811A (en) * 2009-09-30 2011-04-21 Rohm & Haas Co Process for recovering valued compounds from stream derived from purification of methyl methacrylate
CN112292369A (en) * 2018-06-26 2021-01-29 罗姆化学有限责任公司 Method for producing MMA in high yield

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011079811A (en) * 2009-09-30 2011-04-21 Rohm & Haas Co Process for recovering valued compounds from stream derived from purification of methyl methacrylate
US8183406B2 (en) 2009-09-30 2012-05-22 Rohm And Haas Company Process for recovering valued compounds from a stream derived from purification of methyl methacrylate
JP2014040472A (en) * 2009-09-30 2014-03-06 Rohm & Haas Co Method of collecting valuable compounds from flow occurred by purification of methyl methacrylate
CN112292369A (en) * 2018-06-26 2021-01-29 罗姆化学有限责任公司 Method for producing MMA in high yield
JP2021528462A (en) * 2018-06-26 2021-10-21 レーム・ゲーエムベーハーＲｏｅｈｍ ＧｍｂＨ Method for producing MMA in high yield
US11299449B2 (en) * 2018-06-26 2022-04-12 Röhm Gmbh Process for preparing MMA in high yields
CN112292369B (en) * 2018-06-26 2023-08-15 罗姆化学有限责任公司 Process for producing MMA in high yield

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