JPS632256B2 - - Google Patents

Info

Publication number
JPS632256B2
JPS632256B2 JP12377080A JP12377080A JPS632256B2 JP S632256 B2 JPS632256 B2 JP S632256B2 JP 12377080 A JP12377080 A JP 12377080A JP 12377080 A JP12377080 A JP 12377080A JP S632256 B2 JPS632256 B2 JP S632256B2
Authority
JP
Japan
Prior art keywords
acid
reaction
temperature
metadiaminobenzene
water
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.)
Expired
Application number
JP12377080A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5748961A (en
Inventor
Katsuaki Ookawa
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP12377080A priority Critical patent/JPS5748961A/ja
Publication of JPS5748961A publication Critical patent/JPS5748961A/ja
Publication of JPS632256B2 publication Critical patent/JPS632256B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
JP12377080A 1980-09-05 1980-09-05 Preparation of 2,4-diaminobenzenesulfonic acid Granted JPS5748961A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12377080A JPS5748961A (en) 1980-09-05 1980-09-05 Preparation of 2,4-diaminobenzenesulfonic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12377080A JPS5748961A (en) 1980-09-05 1980-09-05 Preparation of 2,4-diaminobenzenesulfonic acid

Publications (2)

Publication Number Publication Date
JPS5748961A JPS5748961A (en) 1982-03-20
JPS632256B2 true JPS632256B2 (instruction) 1988-01-18

Family

ID=14868843

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12377080A Granted JPS5748961A (en) 1980-09-05 1980-09-05 Preparation of 2,4-diaminobenzenesulfonic acid

Country Status (1)

Country Link
JP (1) JPS5748961A (instruction)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05117313A (ja) * 1990-03-08 1993-05-14 Basf Ag Ｎ−ビニルアミドの加水分解されたポリマーの安定な水／油−エマルジヨンを製造する方法
JPH08329634A (ja) * 1995-05-31 1996-12-13 Nec Corp 磁気ヘッド
CN100386312C (zh) * 2006-07-18 2008-05-07 上海世景国际贸易有限公司 2，4-二氨基苯磺酸及其盐的合成方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10243028A1 (de) 2002-09-17 2004-03-25 Bayer Ag Verfahren zur Herstellung isolierter 3,4-Diaminobenzolsulfonsäure
CN102516137A (zh) * 2011-12-08 2012-06-27 江苏远征化工有限公司 2,4-二氨基苯磺酸及其盐的生产方法
CN103553982A (zh) * 2013-08-22 2014-02-05 上海鸿源鑫创材料科技有限公司 2,4-二氨基苯磺酸钠的制备工艺
CN108675946A (zh) * 2018-06-21 2018-10-19 中北大学 一种制备2,4-二氨基苯磺酸的方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05117313A (ja) * 1990-03-08 1993-05-14 Basf Ag Ｎ−ビニルアミドの加水分解されたポリマーの安定な水／油−エマルジヨンを製造する方法
JPH08329634A (ja) * 1995-05-31 1996-12-13 Nec Corp 磁気ヘッド
CN100386312C (zh) * 2006-07-18 2008-05-07 上海世景国际贸易有限公司 2，4-二氨基苯磺酸及其盐的合成方法

Also Published As

Publication number Publication date
JPS5748961A (en) 1982-03-20

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