EP 0129680 A2 19850102 - Process for the treatment of process waste waters and waste waters in the hydrogenation of coal.
Title (en)
Process for the treatment of process waste waters and waste waters in the hydrogenation of coal.
Title (de)
Verfahren zur Behandlung von Prozessabwässern und Abwässern bei der Hydrierung von Kohle.
Title (fr)
Traitement d'eaux résiduaires de procédé et d'eau résiduaire provenant d'une hydrogénation de charbon.
Publication
Application
Priority
DE 3322784 A 19830624
Abstract (en)
[origin: US4597851A] The invention provides a process for the utilization of waste water in a coal hydrogenation plant. The demand for processed water and the amount of water required in the hydrogenation of coal is reduced by the use of the resulting waste water from an atmospheric distiller and/or a vacuum distiller as quenching water in a cold precipitator stage of the coal hydrogenation process.
Abstract (de)
Nach der Erfindung wird der Prozeßwasserbedarf und der Wasseranfall bei der Hydrierung von Kohle durch Verwendung der anfallenden Abwässer als Quenchwasser in den zum Kaltabscheider führenden Rohrzuleitungen verringert.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
EP 0129680 A2 19850102; EP 0129680 A3 19870506; EP 0129680 B1 19880817; AU 2970384 A 19850131; AU 557994 B2 19870115; BR 8403056 A 19850528; CA 1231655 A 19880119; DE 3322784 A1 19850103; DE 3473472 D1 19880922; JP H037237 B2 19910201; JP S6013886 A 19850124; PL 146219 B1 19890131; PL 248360 A1 19850424; US 4597851 A 19860701; ZA 844751 B 19850529
DOCDB simple family (application)
EP 84105177 A 19840508; AU 2970384 A 19840621; BR 8403056 A 19840622; CA 457191 A 19840622; DE 3322784 A 19830624; DE 3473472 T 19840508; JP 12769584 A 19840622; PL 24836084 A 19840622; US 62410584 A 19840625; ZA 844751 A 19840622