Isolation of anthracene and carbazole by melt-crystallization
In a method for obtaining anthracene and carbazole and their sequential products from the anthracene oil resulting during coal tar distillation or its purification products, anthracene oil or the purification product crude anthracene is converted into a melt without adding solvent, the melt is coole...
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| creator | BERND VIERHAUS FRIEDHELM ALSMEIER DIETMAR SCHOLL ULRICH KNIPS JORG TALBIERSKY SIEGFRIED GIERTLER EDGAR FUHRMANN BUTTNER, THOMAS, W ALI NIKZAD KLAUS DIALER KONRAD STOLZENBERG RUDOLF BISCHOF WOLFGANG BERGINS |
| description | In a method for obtaining anthracene and carbazole and their sequential products from the anthracene oil resulting during coal tar distillation or its purification products, anthracene oil or the purification product crude anthracene is converted into a melt without adding solvent, the melt is cooled under the crystallization point of carbazole and anthracene, the crystal product obtained is separated from the liquid phase, and the crystal product is distilled to obtain pure anthracene and pure carbazole. |
| format | Patent |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING |
| title | Isolation of anthracene and carbazole by melt-crystallization |
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