D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
9/36.6
D21C 11/04 (2006.01) D21C 11/06 (2006.01) D21C 11/08 (2006.01) D21C 11/10 (2006.01) D21C 11/12 (2006.01)
Patent
CA 1288553
ABSTRACT OF THE DISCLOSURE A process is provided herein for recovery energy and chemi- cals from spent liquor containing organic materials in pulp preparation. In such process, the liquor is thermally decomposed after concentration, forming gaseous and solid products and energy being recovered from the gases. The thermal decomposition is carried out in a single step at a supply of oxygen in an amount below that stoichiometrically required, at a pressure above atmospheric and at such a temperature that no melt is formed. The thermal decomposition forms sulphur-containing gases which are recovered by being absorbed in an alkaline solution.
553042
Andersson Alf Ove
Warnqvist Bjorn Sigurd
Borden Ladner Gervais Llp
General Process Aa Ab
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