Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Kopparfors AB
Original Assignee
Kopparfors AB
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Filing date
Publication date
Application filed by Kopparfors ABfiledCriticalKopparfors AB
Priority to FR976892ApriorityCriticalpatent/FR1397055A/en
Application grantedgrantedCritical
Publication of FR1397055ApublicationCriticalpatent/FR1397055A/en
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
D21C3/222—Use of compounds accelerating the pulping processes
FR976892A1964-06-031964-06-03
Sulphite pulp manufacturing process
ExpiredFR1397055A
(en)