JPS5679632A - Preparation of polyhydric alcohol - Google Patents

Preparation of polyhydric alcohol

Info

Publication number
JPS5679632A
JPS5679632A JP15697679A JP15697679A JPS5679632A JP S5679632 A JPS5679632 A JP S5679632A JP 15697679 A JP15697679 A JP 15697679A JP 15697679 A JP15697679 A JP 15697679A JP S5679632 A JPS5679632 A JP S5679632A
Authority
JP
Japan
Prior art keywords
polyhydric alcohol
formic acid
acid salt
formaldehyde
aldol condensation
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
JP15697679A
Other languages
Japanese (ja)
Other versions
JPS582209B2 (en
Inventor
Minoru Baba
Teruyuki Ninomiya
Masao Takemoto
Chieko Moriyasu
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 Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co Inc
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 Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Priority to JP15697679A priority Critical patent/JPS582209B2/en
Publication of JPS5679632A publication Critical patent/JPS5679632A/en
Publication of JPS582209B2 publication Critical patent/JPS582209B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To separate a polyhydric alcohol from a formic acid salt in high purity, by removing a polyhydric alcohol from a reaction product of an aliphatic aldehyde with excessive formaldehyde, and subjecting the residual liquid composed of formaldehyde and a formic acid salt to the treatment similar to aldol condensation.
CONSTITUTION: In the preparation of a polyhydric alcohol of formula II (R3 and R4 are 1W4C alkyl, etc.) by the aldol condensation and the crossed Cannizzaro reaction of an aliphatic aldehyde of formula I (one of R1 and R2 is H and the other is H or 1W6C alkyl, etc.) with excess formaldehyde in the presence of an inorganic base, the separation of the polyhydric alcohol and the formic acid salt from the reaction product liquid is carried out as follows: (1) the polyhydric alcohol is separated from the reaction product, (2) the residual liquid consisting of the formic acid salt and formaldehyde is added with excessive aliphatic aldehyde and an inorganic base and subjected to aldol condensation, (3) the product is separated into the organic phase and the aqueous phase, (4) the organic phase is subjected successively to aldol condensation and Cannizzaro reaction, and (5) the formic acid salt is separated aqueous phase.
COPYRIGHT: (C)1981,JPO&Japio
JP15697679A 1979-12-04 1979-12-04 Method for producing polyhydric alcohol Expired JPS582209B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15697679A JPS582209B2 (en) 1979-12-04 1979-12-04 Method for producing polyhydric alcohol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15697679A JPS582209B2 (en) 1979-12-04 1979-12-04 Method for producing polyhydric alcohol

Publications (2)

Publication Number Publication Date
JPS5679632A true JPS5679632A (en) 1981-06-30
JPS582209B2 JPS582209B2 (en) 1983-01-14

Family

ID=15639438

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15697679A Expired JPS582209B2 (en) 1979-12-04 1979-12-04 Method for producing polyhydric alcohol

Country Status (1)

Country Link
JP (1) JPS582209B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6077980A (en) * 1997-08-07 2000-06-20 Mitsubishi Gas Chemical Company, Inc. Process for producing polyhydric alcohol
US6080896A (en) * 1997-08-07 2000-06-27 Mitsubishi Gas Chemical Company, Inc. Process for producing polyhydric alcohol
JP2002003420A (en) * 2000-06-27 2002-01-09 Mitsubishi Gas Chem Co Inc Method for producing polyol
JP2002003421A (en) * 2000-06-27 2002-01-09 Mitsubishi Gas Chem Co Inc Method for producing polyol
US7461617B2 (en) 2005-01-20 2008-12-09 Honda Motor Co., Ltd. Engine-driven work machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6077980A (en) * 1997-08-07 2000-06-20 Mitsubishi Gas Chemical Company, Inc. Process for producing polyhydric alcohol
US6080896A (en) * 1997-08-07 2000-06-27 Mitsubishi Gas Chemical Company, Inc. Process for producing polyhydric alcohol
JP2002003420A (en) * 2000-06-27 2002-01-09 Mitsubishi Gas Chem Co Inc Method for producing polyol
JP2002003421A (en) * 2000-06-27 2002-01-09 Mitsubishi Gas Chem Co Inc Method for producing polyol
JP4635300B2 (en) * 2000-06-27 2011-02-23 三菱瓦斯化学株式会社 Method for producing polyol
JP4691756B2 (en) * 2000-06-27 2011-06-01 三菱瓦斯化学株式会社 Production method of polyol
US7461617B2 (en) 2005-01-20 2008-12-09 Honda Motor Co., Ltd. Engine-driven work machine

Also Published As

Publication number Publication date
JPS582209B2 (en) 1983-01-14

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