BE806179A - Procede de separation de cetazines de leurs melanges bruts de synthese - Google Patents
Procede de separation de cetazines de leurs melanges bruts de syntheseInfo
- Publication number
- BE806179A BE806179A BE136774A BE136774A BE806179A BE 806179 A BE806179 A BE 806179A BE 136774 A BE136774 A BE 136774A BE 136774 A BE136774 A BE 136774A BE 806179 A BE806179 A BE 806179A
- Authority
- BE
- Belgium
- Prior art keywords
- cetazines
- separating
- raw synthesis
- synthesis mixtures
- mixtures
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C251/00—Compounds containing nitrogen atoms doubly-bound to a carbon skeleton
- C07C251/72—Hydrazones
- C07C251/88—Hydrazones having also the other nitrogen atom doubly-bound to a carbon atom, e.g. azines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7245576A FR2211939A5 (fr) | 1972-12-21 | 1972-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE806179A true BE806179A (fr) | 1974-02-15 |
Family
ID=9109079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE136774A BE806179A (fr) | 1972-12-21 | 1973-10-17 | Procede de separation de cetazines de leurs melanges bruts de synthese |
Country Status (12)
Country | Link |
---|---|
US (1) | US3883401A (fr) |
JP (1) | JPS5212684B2 (fr) |
AT (1) | AT326093B (fr) |
BE (1) | BE806179A (fr) |
CA (1) | CA1027063A (fr) |
CH (1) | CH581609A5 (fr) |
DE (1) | DE2361932C3 (fr) |
ES (1) | ES421601A1 (fr) |
FR (1) | FR2211939A5 (fr) |
GB (1) | GB1407329A (fr) |
IT (1) | IT999771B (fr) |
NL (1) | NL7317482A (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63295408A (ja) * | 1987-05-28 | 1988-12-01 | Mitsubishi Gas Chem Co Inc | 水加ヒドラジン水溶液の精製方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2876173A (en) * | 1955-12-13 | 1959-03-03 | Olin Mathieson | Separation of unsymmetrical dimethyl-hydrazine from aqueous solution containing not more than 20 percent of the former, caustic soda |
US3012948A (en) * | 1959-03-26 | 1961-12-12 | Nat Distillers Chem Corp | Dehydration of methylhydrazine |
GB1133762A (en) * | 1965-04-20 | 1968-11-20 | Fisons Ind Chemicals Ltd | Process for the preparation of azines and/or isohydrazones and their use in the production of hydrazine |
GB1164435A (en) * | 1966-03-29 | 1969-09-17 | Fisons Ind Chemicals Ltd | Preparation of Azines and Isohydrazones |
CA988536A (en) * | 1970-04-10 | 1976-05-04 | Godfrey V. Jeffreys | Process for preparing azines |
-
1972
- 1972-12-21 FR FR7245576A patent/FR2211939A5/fr not_active Expired
-
1973
- 1973-10-17 BE BE136774A patent/BE806179A/fr not_active IP Right Cessation
- 1973-11-16 IT IT70389/73A patent/IT999771B/it active
- 1973-11-16 JP JP48128394A patent/JPS5212684B2/ja not_active Expired
- 1973-11-27 GB GB5498973A patent/GB1407329A/en not_active Expired
- 1973-12-05 CA CA187,467A patent/CA1027063A/fr not_active Expired
- 1973-12-13 DE DE2361932A patent/DE2361932C3/de not_active Expired
- 1973-12-13 AT AT1044073A patent/AT326093B/de not_active IP Right Cessation
- 1973-12-18 US US425865A patent/US3883401A/en not_active Expired - Lifetime
- 1973-12-18 ES ES421601A patent/ES421601A1/es not_active Expired
- 1973-12-20 CH CH1793873A patent/CH581609A5/xx not_active IP Right Cessation
- 1973-12-20 NL NL7317482A patent/NL7317482A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CA1027063A (fr) | 1978-02-28 |
CH581609A5 (fr) | 1976-11-15 |
AT326093B (de) | 1975-11-25 |
DE2361932C3 (de) | 1983-06-09 |
ES421601A1 (es) | 1976-04-16 |
JPS5212684B2 (fr) | 1977-04-08 |
DE2361932A1 (de) | 1974-07-11 |
NL7317482A (fr) | 1974-06-25 |
DE2361932B2 (de) | 1975-09-18 |
US3883401A (en) | 1975-05-13 |
GB1407329A (en) | 1975-09-24 |
IT999771B (it) | 1976-03-10 |
JPS504008A (fr) | 1975-01-16 |
FR2211939A5 (fr) | 1974-07-19 |
ATA1044073A (de) | 1975-02-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE20 | Patent expired |
Owner name: PRODUITS CHIMIQUES UGINE KUHLMANN Effective date: 19931017 |