DE2912053C2 - - Google Patents
Info
- Publication number
- DE2912053C2 DE2912053C2 DE2912053A DE2912053A DE2912053C2 DE 2912053 C2 DE2912053 C2 DE 2912053C2 DE 2912053 A DE2912053 A DE 2912053A DE 2912053 A DE2912053 A DE 2912053A DE 2912053 C2 DE2912053 C2 DE 2912053C2
- Authority
- DE
- Germany
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C46/00—Preparation of quinones
- C07C46/10—Separation; Purification; Stabilisation; Use of additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3582578A JPS54128558A (en) | 1978-03-27 | 1978-03-27 | Purification of naphthoquinone |
JP4946678A JPS54141755A (en) | 1978-04-26 | 1978-04-26 | Purification of naphthoquinone |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2912053A1 DE2912053A1 (de) | 1979-10-11 |
DE2912053C2 true DE2912053C2 (US06272168-20010807-M00014.png) | 1987-04-02 |
Family
ID=26374819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19792912053 Granted DE2912053A1 (de) | 1978-03-27 | 1979-03-27 | Verfahren zur reinigung von naphthochinon |
Country Status (3)
Country | Link |
---|---|
US (1) | US4257851A (US06272168-20010807-M00014.png) |
DE (1) | DE2912053A1 (US06272168-20010807-M00014.png) |
GB (1) | GB2017694B (US06272168-20010807-M00014.png) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6029692B2 (ja) * | 1980-05-23 | 1985-07-12 | 川崎化成工業株式会社 | 粗製ナフトキノンの精製法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2536833A (en) * | 1948-09-18 | 1951-01-02 | Allied Chem & Dye Corp | Recovery of naphthoquinone |
US2779722A (en) * | 1954-07-26 | 1957-01-29 | Union Carbide & Carbon Corp | Process for recovery of naphthalene from crude naphthalene |
GB1036330A (en) * | 1963-12-23 | 1966-07-20 | Svenska Oljeslageri Ab | A process for the recovery of naphthoquinone formed in the catalytic vapor phase oxidation of naphthalene |
-
1979
- 1979-03-22 US US06/022,878 patent/US4257851A/en not_active Expired - Lifetime
- 1979-03-23 GB GB7910222A patent/GB2017694B/en not_active Expired
- 1979-03-27 DE DE19792912053 patent/DE2912053A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
GB2017694B (en) | 1982-07-21 |
US4257851A (en) | 1981-03-24 |
GB2017694A (en) | 1979-10-10 |
DE2912053A1 (de) | 1979-10-11 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |