JPS56108727A - Recovery of methacrolein and methacrylic acid - Google Patents

Recovery of methacrolein and methacrylic acid

Info

Publication number
JPS56108727A
JPS56108727A JP877480A JP877480A JPS56108727A JP S56108727 A JPS56108727 A JP S56108727A JP 877480 A JP877480 A JP 877480A JP 877480 A JP877480 A JP 877480A JP S56108727 A JPS56108727 A JP S56108727A
Authority
JP
Japan
Prior art keywords
methacrylic acid
methacrolein
solvent
pipe
sent
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
JP877480A
Other languages
Japanese (ja)
Inventor
Yoshiaki Kimura
Takao Sunaga
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.)
Nippon Kayaku Co Ltd
Original Assignee
Nippon Kayaku 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 Nippon Kayaku Co Ltd filed Critical Nippon Kayaku Co Ltd
Priority to JP877480A priority Critical patent/JPS56108727A/en
Publication of JPS56108727A publication Critical patent/JPS56108727A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/04—Arrangement of batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To recover the titled compounds readily, by bringing a gas mixture containing methacrolein and a small amount of methacrylic acid into contact with xylene, etc. used as an absorbing solvent so that methacrolein and methacrylic acid are absorbed, followed by separating the absorbing solution by distillation.
CONSTITUTION: A mixture gas containing methacrolein and a small amount of methacrylic acid is sent from the pipe 4 to the absorption tower 5, and an absorbing solvent of xylene and/or ethylbenzene is fed from the pipe 7 to the absorption tower 5 where the mixture gas is brought into contact with the absorbing solvent so that methacrolein and methacrylic acid are absorbed into the solvent which is sent to the methacrolein recovering tower 9. Methacrolein having a purity not less than 99.5wt% is recovered from the top of the tower and it is recycled through the oxidation reaction system for use. A bottom product containing a small amount of remaining methacrylic acid is partly circulated through the pipe 12 to the absorption tower 5, and the rest is sent from the pipe 13 to the extraction tower 14 for mathacrylic acid where methacrylic acid is extracted and the extracted solution is sent to the solvent recovering process 17. After methacrylic acid is separated, the solvent is recycled from the pipe 18 to the absorption tower 5 for use.
COPYRIGHT: (C)1981,JPO&Japio
JP877480A 1980-01-30 1980-01-30 Recovery of methacrolein and methacrylic acid Pending JPS56108727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP877480A JPS56108727A (en) 1980-01-30 1980-01-30 Recovery of methacrolein and methacrylic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP877480A JPS56108727A (en) 1980-01-30 1980-01-30 Recovery of methacrolein and methacrylic acid

Publications (1)

Publication Number Publication Date
JPS56108727A true JPS56108727A (en) 1981-08-28

Family

ID=11702228

Family Applications (1)

Application Number Title Priority Date Filing Date
JP877480A Pending JPS56108727A (en) 1980-01-30 1980-01-30 Recovery of methacrolein and methacrylic acid

Country Status (1)

Country Link
JP (1) JPS56108727A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100224478A1 (en) * 2007-10-23 2010-09-09 Se-Won Baek Method for collecting (meth)acrylic acid and apparatus for collecting (meth)acrylic acid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100224478A1 (en) * 2007-10-23 2010-09-09 Se-Won Baek Method for collecting (meth)acrylic acid and apparatus for collecting (meth)acrylic acid
US8246790B2 (en) * 2007-10-23 2012-08-21 Lg Chem, Ltd. Method for collecting (meth)acrylic acid and apparatus for collecting (meth)acrylic acid

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