GB987612A - Sulphite pulping process - Google Patents
Sulphite pulping processInfo
- Publication number
- GB987612A GB987612A GB13458/61A GB1345861A GB987612A GB 987612 A GB987612 A GB 987612A GB 13458/61 A GB13458/61 A GB 13458/61A GB 1345861 A GB1345861 A GB 1345861A GB 987612 A GB987612 A GB 987612A
- Authority
- GB
- United Kingdom
- Prior art keywords
- digestion
- magnesium
- temperature
- digesting
- pulping process
- Prior art date
- 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.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- 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
Landscapes
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24927A US3092535A (en) | 1960-04-27 | 1960-04-27 | Sulphite pulping process |
Publications (1)
Publication Number | Publication Date |
---|---|
GB987612A true GB987612A (en) | 1965-03-31 |
Family
ID=21823076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13458/61A Expired GB987612A (en) | 1960-04-27 | 1961-04-14 | Sulphite pulping process |
Country Status (6)
Country | Link |
---|---|
US (1) | US3092535A (sv) |
AT (1) | AT249496B (sv) |
DE (1) | DE1300822C2 (sv) |
FI (1) | FI40850B (sv) |
FR (1) | FR1287891A (sv) |
GB (1) | GB987612A (sv) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3844879A (en) * | 1972-10-30 | 1974-10-29 | Babcock & Wilcox Co | System for removing sodium chloride contaminants from a magnesium base pulping process |
FI75615C (sv) * | 1985-11-29 | 1991-08-26 | Ahlstroem Oy | Förfarande för sänkning av svartlutens viskositet |
US4963231A (en) * | 1988-06-13 | 1990-10-16 | Ahlstromforetagen Svenska Ab | Method for evaporation of liquids |
CN114851332B (zh) * | 2022-05-31 | 2023-02-17 | 东北林业大学 | 一种具有磁各向异性的木质机器人制备方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1864620A (en) * | 1931-02-18 | 1932-06-28 | Brown Co | Process of liberating pulp from raw cellulosic materials |
GB400974A (en) * | 1932-03-04 | 1933-11-06 | Henry Dreyfus | Improvements in or relating to the production of cellulosic materials or cellulose |
GB459531A (en) * | 1935-07-10 | 1937-01-11 | Henry Dreyfus | Improvements in or relating to the manufacture of cellulose |
US2385955A (en) * | 1941-04-08 | 1945-10-02 | George H Tomlinson | Manufacture of sulphite pulp |
BE496841A (sv) * | 1949-07-12 | |||
US2730445A (en) * | 1952-03-21 | 1956-01-10 | Sivola George | Integrated lignocellulose digestion and recovery process |
US3046182A (en) * | 1956-01-13 | 1962-07-24 | Smith Paper Mills Ltd Howard | Sulphite pulping process |
-
1960
- 1960-04-27 US US24927A patent/US3092535A/en not_active Expired - Lifetime
-
1961
- 1961-04-14 GB GB13458/61A patent/GB987612A/en not_active Expired
- 1961-04-24 DE DE1961S0073644 patent/DE1300822C2/de not_active Expired
- 1961-04-24 AT AT319461A patent/AT249496B/de active
- 1961-04-25 FI FI0810/61A patent/FI40850B/fi active
- 1961-04-27 FR FR41508A patent/FR1287891A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1287891A (fr) | 1962-03-16 |
DE1300822B (de) | 1975-01-09 |
FI40850B (sv) | 1969-02-28 |
DE1300822C2 (de) | 1975-01-09 |
AT249496B (de) | 1966-09-26 |
US3092535A (en) | 1963-06-04 |
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