JPS549257A - Preparation of highly pure 1,8-dihydroanthraquinone - Google Patents
Preparation of highly pure 1,8-dihydroanthraquinoneInfo
- Publication number
- JPS549257A JPS549257A JP7467677A JP7467677A JPS549257A JP S549257 A JPS549257 A JP S549257A JP 7467677 A JP7467677 A JP 7467677A JP 7467677 A JP7467677 A JP 7467677A JP S549257 A JPS549257 A JP S549257A
- Authority
- JP
- Japan
- Prior art keywords
- dihydroanthraquinone
- preparation
- highly pure
- dinitration
- anthraquinone
- 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
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare the title cpd., useful as raw materials for intermediates for dispersion dyes, by crystallization of the mother liquor, removed 1,5dinitroanthraquinone from the dinitration mixture of anthraquinone, in the specific conditions such as nitric acid evaporation ratio.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7467677A JPS549257A (en) | 1977-06-23 | 1977-06-23 | Preparation of highly pure 1,8-dihydroanthraquinone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7467677A JPS549257A (en) | 1977-06-23 | 1977-06-23 | Preparation of highly pure 1,8-dihydroanthraquinone |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS549257A true JPS549257A (en) | 1979-01-24 |
JPS6141334B2 JPS6141334B2 (en) | 1986-09-13 |
Family
ID=13554061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7467677A Granted JPS549257A (en) | 1977-06-23 | 1977-06-23 | Preparation of highly pure 1,8-dihydroanthraquinone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS549257A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58133477A (en) * | 1982-02-03 | 1983-08-09 | Hitachi Ltd | Electronic ignition device for marine use |
CN109438246A (en) * | 2018-09-27 | 2019-03-08 | 青岛海湾精细化工有限公司 | A kind of processing method and processing system of anthraquinone |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5046654A (en) * | 1973-08-20 | 1975-04-25 |
-
1977
- 1977-06-23 JP JP7467677A patent/JPS549257A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5046654A (en) * | 1973-08-20 | 1975-04-25 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58133477A (en) * | 1982-02-03 | 1983-08-09 | Hitachi Ltd | Electronic ignition device for marine use |
CN109438246A (en) * | 2018-09-27 | 2019-03-08 | 青岛海湾精细化工有限公司 | A kind of processing method and processing system of anthraquinone |
Also Published As
Publication number | Publication date |
---|---|
JPS6141334B2 (en) | 1986-09-13 |
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