FI40850B - - Google Patents
Info
- Publication number
- FI40850B FI40850B FI0810/61A FI81061A FI40850B FI 40850 B FI40850 B FI 40850B FI 0810/61 A FI0810/61 A FI 0810/61A FI 81061 A FI81061 A FI 81061A FI 40850 B FI40850 B FI 40850B
- Authority
- FI
- Finland
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
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 |
|---|---|
| FI40850B true FI40850B (it) | 1969-02-28 |
Family
ID=21823076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI0810/61A FI40850B (it) | 1960-04-27 | 1961-04-25 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3092535A (it) |
| AT (1) | AT249496B (it) |
| DE (1) | DE1300822C2 (it) |
| FI (1) | FI40850B (it) |
| FR (1) | FR1287891A (it) |
| GB (1) | GB987612A (it) |
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 (fi) * | 1985-11-29 | 1991-08-26 | Ahlstroem Oy | Foerfarande foer saenkning 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 (it) * | 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 |
|---|---|
| GB987612A (en) | 1965-03-31 |
| AT249496B (de) | 1966-09-26 |
| DE1300822C2 (de) | 1975-01-09 |
| FR1287891A (fr) | 1962-03-16 |
| DE1300822B (de) | 1975-01-09 |
| US3092535A (en) | 1963-06-04 |