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Application filed by Waldhof Zellstoff FabfiledCriticalWaldhof Zellstoff Fab
Application grantedgrantedCritical
Publication of AT260673BpublicationCriticalpatent/AT260673B/de
D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
D21C3/00—Pulping cellulose-containing materials
D21C3/22—Other features of pulping processes
D21C3/26—Multistage processes
D21C3/266—Multistage processes the same pulping agent being used in all stages
AT569365A1964-06-241965-06-23Verfahren zur Herstellung von Zellstoffen nach dem Sulfitverfahren
AT260673B
(de)