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Application filed by Escher Wyss AgfiledCriticalEscher Wyss Ag
Publication of CH334609ApublicationCriticalpatent/CH334609A/de
D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
D21C11/00—Regeneration of pulp liquors or effluent waste waters
D21C11/10—Concentrating spent liquor by evaporation
D21C11/106—Prevention of incrustations on heating surfaces during the concentration, e.g. by elimination of the scale-forming substances contained in the liquors
CH334609D1955-09-121955-09-12Verfahren zur Eindampfung von Sulfitablauge
CH334609A
(de)