ELECTROLYSIS OF WEAK BLACK LIQUOR .3. CONTINUOUS OPERATION TEST AND SYSTEM-DESIGN CONSIDERATIONS

Authors
CLOUTIER JN AZARNIOUCH MK CALLENDER D
Citation
Jn. Cloutier et al., ELECTROLYSIS OF WEAK BLACK LIQUOR .3. CONTINUOUS OPERATION TEST AND SYSTEM-DESIGN CONSIDERATIONS, Pulp & paper Canada, 95(5), 1994, pp. 68-72
Citations number
3
Categorie Soggetti
Materials Science, Paper & Wood
Journal title
Pulp & paper Canada → ACNP
ISSN journal
03164004
Volume
95
Issue
5
Year of publication
1994
Pages
68 - 72
Database
ISI
SICI code
0316-4004(1994)95:5<68:EOWBL.>2.0.ZU;2-H
Abstract
The technical feasibility of electrolytic treatment of kraft weak blac k liquor (WBL) from a softwood furnish was tested in a continuous 90-h our experiment with a laboratory-scale system. The process was shown t o be able to reduce the organic load to the recovery furnace by precip itating and removing up to 75% of the lignin while converting a major fraction of the sodium salts to high quality NaOH solution. A method w as also tested for washing the anolyte compartment of the cell to main tain an acceptable energy efficiency.