WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1980001490) BLACK-LIQUOR PROCESSING
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001490    International Application No.:    PCT/EP1980/000002
Publication Date: 24.07.1980 International Filing Date: 14.01.1980
IPC:
D21C 11/00 (2006.01)
Applicants:
Inventors:
Priority Data:
388/79 16.01.1979 CH
Title (EN) BLACK-LIQUOR PROCESSING
(FR) TRAITEMENT DE LIQUEUR NOIRE
Abstract: front page image
(EN)Process for separating the organic constituents of "black liquor" formed by chemical pulping of cellulose-containing materials. The black liquor is heated in a reactor (6) with CO and/or H2 under pressure which results in the conversion of said organic constituents into a water-in-soluble liquid or oil which can be separated from the water phase by usual means, for example by decantation in a setting tank (9). Said conversion can be effected in one or more separate stages, the conversion conditions being different from stage to stage.
(FR)Procede de separation des constituants organiques de "liqueur noire" formee par le traitement chimique de materiaux contenant de la cellulose. La liqueur noire est chauffee dans un reacteur (6) avec du CO et/ou de l"hydrogene sous pression, ce qui convertit lesdits constituants organiques en un liquide ou huile insoluble dans l"eau qui peut etre separe de la phase aqueuse par des moyens usuels, par exemple, par decantation dans des bacs (9). Ladite conversion peut etre effectuee en une ou plusieurs etapes separees, les conditions de conversion etant differentes d"une etape a l"autre.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)