FI40677B - - Google Patents
Info
- Publication number
- FI40677B FI40677B FI0768/62A FI76862A FI40677B FI 40677 B FI40677 B FI 40677B FI 0768/62 A FI0768/62 A FI 0768/62A FI 76862 A FI76862 A FI 76862A FI 40677 B FI40677 B FI 40677B
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0057—Oxidation of liquors, e.g. in order to reduce the losses of sulfur compounds, followed by evaporation or combustion if the liquor in question is a black liquor
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO14034561 | 1961-05-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
FI40677B true FI40677B (fr) | 1968-12-31 |
Family
ID=19908588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI0768/62A FI40677B (fr) | 1961-05-27 | 1962-04-12 |
Country Status (2)
Country | Link |
---|---|
US (1) | US3216887A (fr) |
FI (1) | FI40677B (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1510761A (fr) * | 1966-03-03 | 1968-01-19 | Mo Och Domsjoe Ab | Procédé pour l'accroissement du rendement de la préparation de pâtes à papier par voie alcaline |
US3470061A (en) * | 1967-03-03 | 1969-09-30 | Union Camp Corp | Sodium polysulfide pulping process and regeneration |
US3874991A (en) * | 1968-08-23 | 1975-04-01 | Westvaco Corp | Polysulfide impregnation of lignocellulosic materials in a continuous digester |
US3860479A (en) * | 1971-06-18 | 1975-01-14 | Union Camp Corp | Catalytic oxidation of alkaline pulping liquor |
US4162187A (en) * | 1974-05-09 | 1979-07-24 | The Mead Corporation | Process for production of sodium thiosulfate and sodium hydroxide |
JPS52121501A (en) * | 1976-04-07 | 1977-10-13 | Mitsubishi Heavy Ind Ltd | Process and apparatus for removing badly smelling constituents from kraft digesting liquid |
US4153502A (en) * | 1977-05-06 | 1979-05-08 | Corrosion Service Company Limited | Process for the production of polysulphide pulping liquor from pulp mill recovery smelt |
SE8106203L (sv) * | 1981-10-21 | 1983-04-22 | Nils V Mannbro | Sett for polysulfidbehandling av lignocellulosamaterial vid alkalisk massaframstellning |
US4507172A (en) * | 1982-09-16 | 1985-03-26 | St. Regis Paper Company | Kraft pulping process |
JPS62247812A (ja) * | 1986-04-18 | 1987-10-28 | Chiyoda Chem Eng & Constr Co Ltd | 加圧式上向流深層濾過方法及びそれに用いる濾過器 |
US5082526A (en) * | 1989-01-23 | 1992-01-21 | Pulp And Paper Research Institute Of Canada | Process of producing kraft pulping liquor by the oxidation of white liquor in the presence of lime mud |
BR0012217B1 (pt) | 1999-06-15 | 2011-02-22 | processo de cozimento para polpa. | |
US7534413B2 (en) * | 2004-10-29 | 2009-05-19 | Heritage Environment Services, Llc | Calcium-sodium polysulfide chemical reagent and production methods |
US20140024093A1 (en) * | 2012-03-29 | 2014-01-23 | Shell Oil Company | Process for the production of digested biomass useful for chemicals and biofuels |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2481408A (en) * | 1946-08-13 | 1949-09-06 | Olin Mathieson | Regeneration of caustic soda-sodium sulfide cooking liquor |
US2944928A (en) * | 1957-09-20 | 1960-07-12 | Kibrick | Method of preparing paper pulp |
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1962
- 1962-04-12 FI FI0768/62A patent/FI40677B/fi active
-
1964
- 1964-05-18 US US368365A patent/US3216887A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3216887A (en) | 1965-11-09 |