SE308857BSE707566ASE707566ASE308857BSE 308857 BSE308857 BSE 308857BSE 707566 ASE707566 ASE 707566ASE 707566 ASE707566 ASE 707566ASE 308857 BSE308857 BSE 308857B
Authority
SE
Sweden
Application number
SE707566A
Inventor
A Ogait
Original Assignee
Aschaffenburger Zellstoffwerke
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE1965A0049297external-prioritypatent/DE1517153A1/de
Application filed by Aschaffenburger ZellstoffwerkefiledCriticalAschaffenburger Zellstoffwerke
Publication of SE308857BpublicationCriticalpatent/SE308857B/xx
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
D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
D21C3/10—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites magnesium bisulfite