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JPS56115733A - Decoloring method of dihydroxydiphenylmethane - Google Patents

Decoloring method of dihydroxydiphenylmethane

Info

Publication number
JPS56115733A
JPS56115733A JP1924780A JP1924780A JPS56115733A JP S56115733 A JPS56115733 A JP S56115733A JP 1924780 A JP1924780 A JP 1924780A JP 1924780 A JP1924780 A JP 1924780A JP S56115733 A JPS56115733 A JP S56115733A
Authority
JP
Japan
Prior art keywords
dihydroxydiphenylmethane
colored
boron hydride
sodium boron
decolored
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
JP1924780A
Other languages
Japanese (ja)
Other versions
JPS6052738B2 (en
Inventor
Yoshio Umemura
Shunichi Hamamoto
Motojiro Aoi
Yoshikazu Goto
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 JP1924780A priority Critical patent/JPS6052738B2/en
Publication of JPS56115733A publication Critical patent/JPS56115733A/en
Publication of JPS6052738B2 publication Critical patent/JPS6052738B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain the titled decolored compound, useful as a raw material for an epoxy resin not colored even in an oxidizing atmosphere for a long time readily, by heat-treating colored dihydroxydiphenylmethane solution at a low temperature with sodium boron hydride and oxalic acid.
CONSTITUTION: A solution of colored dihydroxydiphenylmethane (A) in an organic solvent, e.g. epichlorophdrin or benzene, is heated 0W150°C, preferably 0W100°C, in the presence of sodium boron hydride in an amount of 0.001W1wt% based on (A) and oxalic acid in an amount of 1.5 times that of the sodium boron hydride as an anhydride by weight, usually for 1W2hr, to give decolored dihydroxydiphenylmethane.
COPYRIGHT: (C)1981,JPO&Japio
JP1924780A 1980-02-20 1980-02-20 Method for decolorizing dihydroxydiphenylmethane Expired JPS6052738B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1924780A JPS6052738B2 (en) 1980-02-20 1980-02-20 Method for decolorizing dihydroxydiphenylmethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1924780A JPS6052738B2 (en) 1980-02-20 1980-02-20 Method for decolorizing dihydroxydiphenylmethane

Publications (2)

Publication Number Publication Date
JPS56115733A true JPS56115733A (en) 1981-09-11
JPS6052738B2 JPS6052738B2 (en) 1985-11-21

Family

ID=11994075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1924780A Expired JPS6052738B2 (en) 1980-02-20 1980-02-20 Method for decolorizing dihydroxydiphenylmethane

Country Status (1)

Country Link
JP (1) JPS6052738B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5202505A (en) * 1992-03-24 1993-04-13 Hoechst Celanese Corporation Purification of hydroxyphenyl alkanes
US5756781A (en) * 1995-09-29 1998-05-26 General Electric Company Method for making tris(hydroxyphenyl) compounds using ion exchange
JPWO2020189201A1 (en) * 2019-03-18 2020-09-24

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5202505A (en) * 1992-03-24 1993-04-13 Hoechst Celanese Corporation Purification of hydroxyphenyl alkanes
US5756781A (en) * 1995-09-29 1998-05-26 General Electric Company Method for making tris(hydroxyphenyl) compounds using ion exchange
JPWO2020189201A1 (en) * 2019-03-18 2020-09-24
WO2020189201A1 (en) * 2019-03-18 2020-09-24 三菱ケミカル株式会社 Method for producing bisphenol and method for producing polycarbonate resin

Also Published As

Publication number Publication date
JPS6052738B2 (en) 1985-11-21

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