Title:
メルト結晶化によるアントラセン及びカルバゾールの単離
Document Type and Number:
Japanese Patent JP2004525893
Kind Code:
A
Abstract:
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.
Inventors:
Butnell Thomas V.
Kunilp Ulrich
Stolzenberg Konrad
Talbilski Yerg
Fuman Edgar
Arsmeir Fleet Helm
Bergins Wolfgang
Guilleret Siegfried
Schordeet Mar
Feel Haos Bernd
Diarel kraos
Bischoff Rudolph
Nikuzato Ali
Kunilp Ulrich
Stolzenberg Konrad
Talbilski Yerg
Fuman Edgar
Arsmeir Fleet Helm
Bergins Wolfgang
Guilleret Siegfried
Schordeet Mar
Feel Haos Bernd
Diarel kraos
Bischoff Rudolph
Nikuzato Ali
Application Number:
JP2002564470A
Publication Date:
August 26, 2004
Filing Date:
January 23, 2002
Export Citation:
Assignee:
Lutzgers Chemicals Actien Gezelshaft
International Classes:
B01D3/00; C07C7/04; C07C7/14; C07C15/28; C07D209/84; (IPC1-7): C07C7/04; B01D3/00; C07C7/14; C07C15/28
Attorney, Agent or Firm:
Kenichi Morita