JPS57139028A - Method for producing dipentaerythritol or ditrimethylol-alkane in high ratio as by-product - Google Patents

Method for producing dipentaerythritol or ditrimethylol-alkane in high ratio as by-product

Info

Publication number
JPS57139028A
JPS57139028A JP56023941A JP2394181A JPS57139028A JP S57139028 A JPS57139028 A JP S57139028A JP 56023941 A JP56023941 A JP 56023941A JP 2394181 A JP2394181 A JP 2394181A JP S57139028 A JPS57139028 A JP S57139028A
Authority
JP
Japan
Prior art keywords
compound
high ratio
product
metal hydroxide
charging
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
JP56023941A
Other languages
Japanese (ja)
Other versions
JPH0144689B2 (en
Inventor
Kiyoshi Hosokawa
Masatoshi Moriyuki
Masayuki Sakagami
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.)
Koei Chemical Co Ltd
Original Assignee
Koei Chemical 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 Koei Chemical Co Ltd filed Critical Koei Chemical Co Ltd
Priority to JP56023941A priority Critical patent/JPS57139028A/en
Publication of JPS57139028A publication Critical patent/JPS57139028A/en
Publication of JPH0144689B2 publication Critical patent/JPH0144689B2/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: To produce the titled compound in high ratio as a by-product, without lowering the quality and yield of the main product, in the reaction of an alkanal with formaldehyde in the presence of an alkali or alkaline earth metal hydroxide, by charging the raw materials under specific conditions.
CONSTITUTION: (A) Formaldehyde is made to react with (B) the compound of formulaI(R' is H or lower alkyl) in the presence of (C) an alkali metal hydroxide or an alkaline earth metal hydroxide to obtain the compound of formula II (R is methylol or R', especially methylol or ethyl). In the above reaction, the compound of formula III useful as a raw material of polyester can be obtained in high ratio, by charging 0W20%, especially 2W20% of the whole charging amount of C and 2W20% of the whole charging amount of A are charged to the reaction system in advance, feeding the residual amounts of A and C and the whole amount of B slowly to the reaction system in parallel keeping the molar ratios of A/B and C/B above the theoretical values, and reacting preferably at <50°C.
COPYRIGHT: (C)1982,JPO&Japio
JP56023941A 1981-02-19 1981-02-19 Method for producing dipentaerythritol or ditrimethylol-alkane in high ratio as by-product Granted JPS57139028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56023941A JPS57139028A (en) 1981-02-19 1981-02-19 Method for producing dipentaerythritol or ditrimethylol-alkane in high ratio as by-product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56023941A JPS57139028A (en) 1981-02-19 1981-02-19 Method for producing dipentaerythritol or ditrimethylol-alkane in high ratio as by-product

Publications (2)

Publication Number Publication Date
JPS57139028A true JPS57139028A (en) 1982-08-27
JPH0144689B2 JPH0144689B2 (en) 1989-09-29

Family

ID=12124550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56023941A Granted JPS57139028A (en) 1981-02-19 1981-02-19 Method for producing dipentaerythritol or ditrimethylol-alkane in high ratio as by-product

Country Status (1)

Country Link
JP (1) JPS57139028A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60190729A (en) * 1984-12-28 1985-09-28 Kuraray Co Ltd Production of trimethylol heptane
WO1991010633A1 (en) * 1990-01-09 1991-07-25 Mitsui Toatsu Chemicals, Incorporated Process for producing dipentaerythritol
JPH07165652A (en) * 1993-12-14 1995-06-27 Mitsui Toatsu Chem Inc Production of dipentaerythritol
EP0799815A1 (en) * 1996-04-03 1997-10-08 Mitsubishi Gas Chemical Company, Inc. Process for producing ditrimethylolpropane
WO2009057466A1 (en) 2007-10-30 2009-05-07 Mitsubishi Gas Chemical Company, Inc. Process for production of ditrimethylolpropane
WO2013005636A1 (en) 2011-07-01 2013-01-10 三菱瓦斯化学株式会社 Method for producing ditrimethylolpropane
WO2014024717A1 (en) * 2012-08-09 2014-02-13 東亞合成株式会社 Method for producing polyhydric alcohol ether
CN109369347A (en) * 2018-12-10 2019-02-22 安徽金禾实业股份有限公司 A kind of preparation method of tripentaerythritol

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60190729A (en) * 1984-12-28 1985-09-28 Kuraray Co Ltd Production of trimethylol heptane
WO1991010633A1 (en) * 1990-01-09 1991-07-25 Mitsui Toatsu Chemicals, Incorporated Process for producing dipentaerythritol
JPH07165652A (en) * 1993-12-14 1995-06-27 Mitsui Toatsu Chem Inc Production of dipentaerythritol
EP0799815A1 (en) * 1996-04-03 1997-10-08 Mitsubishi Gas Chemical Company, Inc. Process for producing ditrimethylolpropane
WO2009057466A1 (en) 2007-10-30 2009-05-07 Mitsubishi Gas Chemical Company, Inc. Process for production of ditrimethylolpropane
US8492596B2 (en) 2007-10-30 2013-07-23 Mitsubishi Gas Chemical Company, Inc. Process for production of ditrimethylolpropane
JP5434595B2 (en) * 2007-10-30 2014-03-05 三菱瓦斯化学株式会社 Method for producing ditrimethylolpropane
WO2013005636A1 (en) 2011-07-01 2013-01-10 三菱瓦斯化学株式会社 Method for producing ditrimethylolpropane
US8981161B2 (en) 2011-07-01 2015-03-17 Mitsubishi Gas Chemical Company, Inc. Process for production of ditrimethylolpropane
WO2014024717A1 (en) * 2012-08-09 2014-02-13 東亞合成株式会社 Method for producing polyhydric alcohol ether
CN109369347A (en) * 2018-12-10 2019-02-22 安徽金禾实业股份有限公司 A kind of preparation method of tripentaerythritol

Also Published As

Publication number Publication date
JPH0144689B2 (en) 1989-09-29

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