JPS55143939A - Purification of tertiary amine - Google Patents

Purification of tertiary amine

Info

Publication number
JPS55143939A
JPS55143939A JP5090579A JP5090579A JPS55143939A JP S55143939 A JPS55143939 A JP S55143939A JP 5090579 A JP5090579 A JP 5090579A JP 5090579 A JP5090579 A JP 5090579A JP S55143939 A JPS55143939 A JP S55143939A
Authority
JP
Japan
Prior art keywords
tertiary amine
formaldehyde
purification
yield
remaining
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
JP5090579A
Other languages
Japanese (ja)
Other versions
JPS6227058B2 (en
Inventor
Haruyo Satou
Shinzo Imamura
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.)
Toray Industries Inc
Original Assignee
Toray Industries 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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP5090579A priority Critical patent/JPS55143939A/en
Publication of JPS55143939A publication Critical patent/JPS55143939A/en
Publication of JPS6227058B2 publication Critical patent/JPS6227058B2/ja
Granted legal-status Critical Current

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

Abstract

PURPOSE: To purify a tertiary amine and, in some cases, improve its yield, by heating formaldehyde (derivatives) remaining in the tertiary amine in a specific temperature range under acidic conditions.
CONSTITUTION: A tertiary amine is obtained by the reductive methylation of a primary or secondary amine with formaldehyde and formic acid or formaldehyde and hydrogen. On this occasion, the tertiary amine is purified by heating formaldehyde and/or formaldehyde derivatives remaining in the tertiary amine to 80W150°C under acidic conditions. The acid is preferably formic acid and the pH is adjusted below 6.5. When the desired tertiary amine has functional groups, its yield can be improved, by this process.
COPYRIGHT: (C)1980,JPO&Japio
JP5090579A 1979-04-26 1979-04-26 Purification of tertiary amine Granted JPS55143939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5090579A JPS55143939A (en) 1979-04-26 1979-04-26 Purification of tertiary amine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5090579A JPS55143939A (en) 1979-04-26 1979-04-26 Purification of tertiary amine

Publications (2)

Publication Number Publication Date
JPS55143939A true JPS55143939A (en) 1980-11-10
JPS6227058B2 JPS6227058B2 (en) 1987-06-12

Family

ID=12871766

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5090579A Granted JPS55143939A (en) 1979-04-26 1979-04-26 Purification of tertiary amine

Country Status (1)

Country Link
JP (1) JPS55143939A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595145A (en) * 1982-06-30 1984-01-12 Daicel Chem Ind Ltd Purification of tertiary amine
KR20160048027A (en) * 2013-08-26 2016-05-03 헌츠만 페트로케미칼 엘엘씨 Reduction of aldehydes in amine catalysts

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595145A (en) * 1982-06-30 1984-01-12 Daicel Chem Ind Ltd Purification of tertiary amine
JPS6245224B2 (en) * 1982-06-30 1987-09-25 Daicel Chem
KR20160048027A (en) * 2013-08-26 2016-05-03 헌츠만 페트로케미칼 엘엘씨 Reduction of aldehydes in amine catalysts
JP2016536425A (en) * 2013-08-26 2016-11-24 ハンツマン ペトロケミカル エルエルシーＨｕｎｔｓｍａｎ Ｐｅｔｒｏｃｈｅｍｉｃａｌ ＬＬＣ Reduction of aldehydes in amine catalysts.

Also Published As

Publication number Publication date
JPS6227058B2 (en) 1987-06-12

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