JPS5422350A - Purification of aromatic polyamines - Google Patents

Purification of aromatic polyamines

Info

Publication number
JPS5422350A
JPS5422350A JP8689877A JP8689877A JPS5422350A JP S5422350 A JPS5422350 A JP S5422350A JP 8689877 A JP8689877 A JP 8689877A JP 8689877 A JP8689877 A JP 8689877A JP S5422350 A JPS5422350 A JP S5422350A
Authority
JP
Japan
Prior art keywords
purification
aromatic polyamines
neutralizing
compound
reaction mixture
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
JP8689877A
Other languages
Japanese (ja)
Other versions
JPS5826904B2 (en
Inventor
Kazutaro Koike
Takao Harada
Ikuo Takada
Sadayoshi Matsui
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.)
Ihara Chemical Industry Co Ltd
Original Assignee
Ihara Chemical Industry 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 Ihara Chemical Industry Co Ltd filed Critical Ihara Chemical Industry Co Ltd
Priority to JP8689877A priority Critical patent/JPS5826904B2/en
Publication of JPS5422350A publication Critical patent/JPS5422350A/en
Publication of JPS5826904B2 publication Critical patent/JPS5826904B2/en
Expired legal-status Critical Current

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

Abstract

PURPOSE: To obtain high-quality aromatic amines with little discoloration, by neutralizing a reaction mixture with an aqueous solution of an alkali containing tin (or its compound).
COPYRIGHT: (C)1979,JPO&Japio
JP8689877A 1977-07-20 1977-07-20 Method for purifying aromatic polyamines Expired JPS5826904B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8689877A JPS5826904B2 (en) 1977-07-20 1977-07-20 Method for purifying aromatic polyamines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8689877A JPS5826904B2 (en) 1977-07-20 1977-07-20 Method for purifying aromatic polyamines

Publications (2)

Publication Number Publication Date
JPS5422350A true JPS5422350A (en) 1979-02-20
JPS5826904B2 JPS5826904B2 (en) 1983-06-06

Family

ID=13899645

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8689877A Expired JPS5826904B2 (en) 1977-07-20 1977-07-20 Method for purifying aromatic polyamines

Country Status (1)

Country Link
JP (1) JPS5826904B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5873288U (en) * 1981-11-12 1983-05-18 電元オ−トメ−シヨン株式会社 Automatic mahjong table hopper lid opening/closing device
JPS5873286U (en) * 1981-11-12 1983-05-18 電元オ−トメ−シヨン株式会社 Coating conveyor belt for automatic mahjong table
JPS5886181U (en) * 1981-12-04 1983-06-11 狭山精密工業株式会社 Quadruple tile feeding device at fully automatic mahjong table
JPS58133393U (en) * 1982-03-01 1983-09-08 狭山精密工業株式会社 Tile feed detection mechanism in fully automatic mahjong table
JPS58185282U (en) * 1982-06-04 1983-12-09 有馬精密工業株式会社 Automatic mahjong machine tile dispensing device
JPS59199655A (en) * 1983-04-27 1984-11-12 Toyo Soda Mfg Co Ltd Preparation of methylated amine compound
JPH02138155A (en) * 1988-11-18 1990-05-28 Nippon Carbide Ind Co Inc Bis(2,3,5,6-tetrafluoro-4-aminophenyl) methane and production thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5873288U (en) * 1981-11-12 1983-05-18 電元オ−トメ−シヨン株式会社 Automatic mahjong table hopper lid opening/closing device
JPS5873286U (en) * 1981-11-12 1983-05-18 電元オ−トメ−シヨン株式会社 Coating conveyor belt for automatic mahjong table
JPS5886181U (en) * 1981-12-04 1983-06-11 狭山精密工業株式会社 Quadruple tile feeding device at fully automatic mahjong table
JPS58133393U (en) * 1982-03-01 1983-09-08 狭山精密工業株式会社 Tile feed detection mechanism in fully automatic mahjong table
JPS58185282U (en) * 1982-06-04 1983-12-09 有馬精密工業株式会社 Automatic mahjong machine tile dispensing device
JPS59199655A (en) * 1983-04-27 1984-11-12 Toyo Soda Mfg Co Ltd Preparation of methylated amine compound
JPH02138155A (en) * 1988-11-18 1990-05-28 Nippon Carbide Ind Co Inc Bis(2,3,5,6-tetrafluoro-4-aminophenyl) methane and production thereof

Also Published As

Publication number Publication date
JPS5826904B2 (en) 1983-06-06

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