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1.发明授权Recovery of alkali and sulphur from waste lyes in the manufacture of cellulose with alkali sulphite and alkali bisulphite 失效在碱性亚硫酸盐和碱式亚硫酸氢盐生产纤维素时，从废液中回收碱和硫
公开(公告)号：US2800388A
公开(公告)日：1957-07-23
申请号：US53239155
申请日：1955-09-06
Applicant: STORA KOPPARBERGS BERGSLAGS AB
Inventor： GABRIEL AHLBORG NILS KNUT , NICOLAUS CEDERQUIST KARL
IPC: D21C11/00
CPC classification number: D21C11/0071 , Y10S423/03
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2.发明授权Method in the recovery of alkali and sulphur by carbonization of melt soda solutions obtained in the manufacture of cellulose 失效通过在制造纤维素中获得的熔融苏打溶液的碳化来回收碱和硫的方法
公开(公告)号：US2909407A
公开(公告)日：1959-10-20
申请号：US56547256
申请日：1956-02-14
Applicant: STORA KOPPARBERGS BERGSLAGS AB
Inventor： GABRIEL AHLBORG NILS KNUT , NICOLAUS CEDERQUIST KARL
CPC classification number: D21C11/0071 , C01B17/62 , C01D5/14 , Y10S423/03
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3.发明授权Method for recovering chemicals from waste liquor obtained during the production of cellulose 失效在纤维素生产过程中从废液中回收化学品的方法
公开(公告)号：US3402992A
公开(公告)日：1968-09-24
申请号：US43079065
申请日：1965-02-01
Applicant: STORA KOPPARBERGS BERGSLAGS AB
Inventor： GABRIEL AHLBORG NILS KNUT
IPC: D21C11/00
CPC classification number: D21C11/0071 , Y10S423/03
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