D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
9/17, 8/78
D21C 11/12 (2006.01) D21C 3/02 (2006.01) D21C 3/04 (2006.01) D21C 9/10 (2006.01)
Patent
CA 1087355
ABSTRACT OF THE DISCLOSURE A method for regeneration of pulping- or bleaching chemicals from spent pulping- or bleaching liquor or the like is described. According to the method, the liquor containing salts of at least one polybasic inorganic acid after evaporation is burned and if necessary heated further, so that the carbon dioxide formed in the burning of the organic compounds is expelled and allowed to disappear, whereby an alkaline melt or an alkaline solid substance is obtained, which after dissolution in water will mainly be constituted by the same chemical, which in water solution was used in the cook or bleaching, respectively.
260318
Bereskin & Parr
Oy Keskuslaboratorio - Centrallaboratorium Ab
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