JPS57206633A - Purifying method of anthraquinone - Google Patents

Purifying method of anthraquinone

Info

Publication number
JPS57206633A
JPS57206633A JP8971581A JP8971581A JPS57206633A JP S57206633 A JPS57206633 A JP S57206633A JP 8971581 A JP8971581 A JP 8971581A JP 8971581 A JP8971581 A JP 8971581A JP S57206633 A JPS57206633 A JP S57206633A
Authority
JP
Japan
Prior art keywords
anthraquinone
chlorine dioxide
oxidizing
diels
naphthoquinone
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.)
Pending
Application number
JP8971581A
Other languages
Japanese (ja)
Inventor
Tatsumi Komatsu
Shigeaki Numata
Kazuhiro Maruyama
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.)
KAWASAKI KASEI KOGYO KK
Kawasaki Kasei Chemicals Ltd
Original Assignee
KAWASAKI KASEI KOGYO KK
Kawasaki Kasei Chemicals 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 KAWASAKI KASEI KOGYO KK, Kawasaki Kasei Chemicals Ltd filed Critical KAWASAKI KASEI KOGYO KK
Priority to JP8971581A priority Critical patent/JPS57206633A/en
Publication of JPS57206633A publication Critical patent/JPS57206633A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: To purify anthraquinone, by oxidizing a crude anthraquinone obtained by oxidizing a Diels-Alder reaction adduct of 1,4-naphthoquinone with butadiene in an aqueous medium in the presence of chlorine dioxide.
CONSTITUTION: A Diels-Alder reaction adduct of 1,4-naphthoquinone with butadiene is oxidized with molecular oxygen in an aqueous solution of a caustic alkali to give crude anthraquinone, which is then purified. In the process, the crude anthraquinone is oxidized in an aqueous medium in the presence of chlorine dioxide, and water-insoluble impurities are made soluble in water and removed to afford the anthraquinone of high purity. The color tone of the resultant anthraquinone is yellow. The amount of the oxidizing agent chlorine dioxide to be used is 0.5W30%, preferably 1W5%.
USE: A digestion assistant of pulp, intermediates for dyes, etc.
COPYRIGHT: (C)1982,JPO&Japio
JP8971581A 1981-06-12 1981-06-12 Purifying method of anthraquinone Pending JPS57206633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8971581A JPS57206633A (en) 1981-06-12 1981-06-12 Purifying method of anthraquinone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8971581A JPS57206633A (en) 1981-06-12 1981-06-12 Purifying method of anthraquinone

Publications (1)

Publication Number Publication Date
JPS57206633A true JPS57206633A (en) 1982-12-18

Family

ID=13978459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8971581A Pending JPS57206633A (en) 1981-06-12 1981-06-12 Purifying method of anthraquinone

Country Status (1)

Country Link
JP (1) JPS57206633A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62267362A (en) * 1986-05-02 1987-11-20 インドスペック　ケミカル　コーポレーション Production of anthraquinoes
EP0921111A1 (en) * 1997-12-02 1999-06-09 Basf Aktiengesellschaft Process for the preparation of substituted anthraquinones
US6127580A (en) * 1995-09-06 2000-10-03 Basf Aktiengesellschaft Process for the preparation of substituted anthraquinones
KR100336113B1 (en) * 1999-06-30 2002-05-08 박찬구 Producing method of 1,4-naphthoquinones and anthraquinones using oxidizing agent

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62267362A (en) * 1986-05-02 1987-11-20 インドスペック　ケミカル　コーポレーション Production of anthraquinoes
US6127580A (en) * 1995-09-06 2000-10-03 Basf Aktiengesellschaft Process for the preparation of substituted anthraquinones
EP0921111A1 (en) * 1997-12-02 1999-06-09 Basf Aktiengesellschaft Process for the preparation of substituted anthraquinones
KR100336113B1 (en) * 1999-06-30 2002-05-08 박찬구 Producing method of 1,4-naphthoquinones and anthraquinones using oxidizing agent

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