BE686703A - - Google Patents
Info
- Publication number
- BE686703A BE686703A BE686703DA BE686703A BE 686703 A BE686703 A BE 686703A BE 686703D A BE686703D A BE 686703DA BE 686703 A BE686703 A BE 686703A
- Authority
- BE
- Belgium
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/56—Ring systems containing three or more rings
- C07D209/80—[b, c]- or [b, d]-condensed
- C07D209/82—Carbazoles; Hydrogenated carbazoles
- C07D209/84—Separation, e.g. from tar; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2603/00—Systems containing at least three condensed rings
- C07C2603/02—Ortho- or ortho- and peri-condensed systems
- C07C2603/04—Ortho- or ortho- and peri-condensed systems containing three rings
- C07C2603/22—Ortho- or ortho- and peri-condensed systems containing three rings containing only six-membered rings
- C07C2603/24—Anthracenes; Hydrogenated anthracenes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Indole Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US526925A US3407209A (en) | 1965-12-27 | 1965-12-27 | Method for the recovery of carbazole from coal tar fractions |
| US526930A US3407208A (en) | 1965-12-27 | 1965-12-30 | Recovery of carbazole from coal tar fractions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE686703A true BE686703A (ru) | 1967-03-09 |
Family
ID=27062262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE686703D BE686703A (ru) | 1965-12-27 | 1966-09-09 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US3407209A (ru) |
| BE (1) | BE686703A (ru) |
| BR (1) | BR6682614D0 (ru) |
| DE (1) | DE1570057C3 (ru) |
| LU (1) | LU51912A1 (ru) |
| NL (1) | NL139512B (ru) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3617515A (en) * | 1969-05-26 | 1971-11-02 | Lummus Co | Production of needle coke from coal for pitch |
| CS234023B2 (en) * | 1979-10-25 | 1985-03-14 | Inst Chemii Przemyslowej | Method of anthracin separation and purification from anthracion oil |
| CN102304013B (zh) * | 2011-07-21 | 2013-09-11 | 辽宁科技学院 | 一种以粗蒽为原料生产精蒽和精咔唑的新工艺 |
| CN104193671B (zh) * | 2014-08-22 | 2016-12-07 | 山西永东化工股份有限公司 | 一种煤焦油精咔唑的提纯方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1672630A (en) * | 1921-12-15 | 1928-06-05 | Charles J Thatcher | Process of purifying carbazole |
| US1831059A (en) * | 1928-07-27 | 1931-11-10 | Selden Co | Purification of crude anthracene |
| US2764595A (en) * | 1952-05-07 | 1956-09-25 | Stamicarbon | Process for the preparation of technically pure anthracene and carbazole from crude anthracene |
| US3285987A (en) * | 1965-02-08 | 1966-11-15 | Great Lakes Carbon Corp | Purification of anthracene |
-
1965
- 1965-12-27 US US526925A patent/US3407209A/en not_active Expired - Lifetime
- 1965-12-30 US US526930A patent/US3407208A/en not_active Expired - Lifetime
-
1966
- 1966-09-05 BR BR182614/66A patent/BR6682614D0/pt unknown
- 1966-09-07 DE DE1570057A patent/DE1570057C3/de not_active Expired
- 1966-09-08 LU LU51912D patent/LU51912A1/xx unknown
- 1966-09-08 NL NL666612651A patent/NL139512B/xx unknown
- 1966-09-09 BE BE686703D patent/BE686703A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR6682614D0 (pt) | 1973-12-26 |
| NL139512B (nl) | 1973-08-15 |
| US3407209A (en) | 1968-10-22 |
| NL6612651A (ru) | 1967-06-28 |
| DE1570057B2 (de) | 1974-10-10 |
| US3407208A (en) | 1968-10-22 |
| DE1570057C3 (de) | 1975-06-05 |
| LU51912A1 (ru) | 1967-03-08 |
| DE1570057A1 (de) | 1972-04-06 |