JPS5214323B2 - - Google Patents
Info
- Publication number
- JPS5214323B2 JPS5214323B2 JP50070099A JP7009975A JPS5214323B2 JP S5214323 B2 JPS5214323 B2 JP S5214323B2 JP 50070099 A JP50070099 A JP 50070099A JP 7009975 A JP7009975 A JP 7009975A JP S5214323 B2 JPS5214323 B2 JP S5214323B2
- Authority
- JP
- Japan
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1068—Bleaching ; Apparatus therefor with O2
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Carbon And Carbon Compounds (AREA)
- Catalysts (AREA)
- Fertilizers (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Compounds Of Unknown Constitution (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7407885A SE382474C (sv) | 1974-06-14 | 1974-06-14 | Forfarande och anordning for syrgasdelignifiering av lignocellulosahaltigt material |
| SE7500686A SE422606B (sv) | 1975-01-22 | 1975-01-22 | Forfarande for syragasdelignifiering av lignocellulosahaltigt material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5188701A JPS5188701A (en:Method) | 1976-08-03 |
| JPS5214323B2 true JPS5214323B2 (en:Method) | 1977-04-21 |
Family
ID=26656497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50070099A Expired JPS5214323B2 (en:Method) | 1974-06-14 | 1975-06-10 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4050981A (en:Method) |
| JP (1) | JPS5214323B2 (en:Method) |
| BR (1) | BR7503748A (en:Method) |
| CA (1) | CA1036759A (en:Method) |
| CH (1) | CH611956A5 (en:Method) |
| DE (1) | DE2523191C3 (en:Method) |
| FI (1) | FI58360C (en:Method) |
| FR (1) | FR2274728A1 (en:Method) |
| GB (1) | GB1505529A (en:Method) |
| IT (1) | IT1036296B (en:Method) |
| NO (1) | NO145922C (en:Method) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS528103A (en) * | 1975-07-10 | 1977-01-21 | Gadelius Co Ltd | Process for removing explosive gas from lignin separating tower through oxygenation by pulp manufacture |
| SE416481B (sv) * | 1977-05-02 | 1981-01-05 | Mo Och Domsjoe Ab | Fofarande och anordning for behandling av vedflis for avlegsnande av tungmetaller och harts |
| SE417114B (sv) * | 1977-07-25 | 1981-02-23 | Mo Och Domsjoe Ab | Forfarande for forebyggande av inkrustbildning i cellulosafabriker |
| SE434284B (sv) * | 1980-05-07 | 1984-07-16 | Mo Och Domsjoe Ab | Forfarande vid syrgasdelignifiering av kemiskt uppsluten cellulosamassa varvid aromatiska diaminer tillfores |
| US4384920A (en) * | 1981-04-06 | 1983-05-24 | The Black Clawson Company | Method and apparatus for oxygen delignification |
| US4622101A (en) * | 1984-10-01 | 1986-11-11 | International Paper Company | Method of oxygen bleaching with ferricyanide lignocellulosic material |
| US4622100A (en) * | 1984-10-01 | 1986-11-11 | International Paper Company | Process for the delignification of lignocellulosic material with oxygen, ferricyanide, and a protector |
| US4826567A (en) * | 1985-08-05 | 1989-05-02 | Interox (Societe Anonyme) | Process for the delignification of cellulosic substances by pretreating with a complexing agent followed by hydrogen peroxide |
| US4826568A (en) * | 1985-08-05 | 1989-05-02 | Interox (Societe Anonyme) | Process for delignification of cellulosic substances by pretreating with a complexing agent followed by peroxide prior to kraft digestion |
| US4946555A (en) * | 1989-01-19 | 1990-08-07 | Canadian Liquid Air Ltd./Air Liquide Canada | Apparatus and method for measuring vent gas flow rates and parameters in pulp and paper processing |
| US4946556A (en) * | 1989-04-25 | 1990-08-07 | Kamyr, Inc. | Method of oxygen delignifying wood pulp with between stage washing |
| AT395180B (de) * | 1989-08-16 | 1992-10-12 | Andritz Ag Maschf | Verfahren zur zerkleinerung von materialien und anlage zu dessen durchfuehrung |
| US5079209A (en) * | 1990-03-07 | 1992-01-07 | United Technologies Corporation | Preparation of high capacity unsupported regenerable co2 sorbent |
| US5454968A (en) * | 1990-11-08 | 1995-10-03 | United Technologies Corporation | Flat sheet CO2 sorbent |
| SE9401771D0 (sv) * | 1994-05-24 | 1994-05-24 | Hans Olof Samuelson | Process for removal of metal compounds in lignocellulosic pulp |
| FI122654B (fi) * | 1997-12-08 | 2012-05-15 | Ovivo Luxembourg Sarl | Menetelmä paperisellumassan valmistamiseksi |
| US20020129911A1 (en) * | 2000-10-16 | 2002-09-19 | Marcoccia Bruno S. | Process and configuration for providing external upflow/internal downflow in a continuous digester |
| US20030000661A1 (en) * | 2001-06-22 | 2003-01-02 | Henricson Kaj O. | Removal of water-soluble compounds from wood chips prior to cooking |
| EP2212467B1 (en) * | 2007-11-01 | 2014-06-11 | Eau-Viron Incorporated | Methods and apparatus for hydrolyzing cellulosic material |
| WO2012034087A1 (en) * | 2010-09-10 | 2012-03-15 | Synthetic Genomics, Inc. | Solubilization of coal or lignocellulose biomass |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1529919A (en) * | 1922-03-06 | 1925-03-17 | Stebbins Engineering And Mfg C | Pulp-bleaching method and apparatus |
| US1790260A (en) * | 1927-10-27 | 1931-01-27 | Oxford Paper Co | Method of manufacturing chemical pulp or cellulose |
| US2811518A (en) * | 1955-06-07 | 1957-10-29 | Rayonier Inc | Alkaline refining of wood pulp |
| US3525665A (en) * | 1965-10-22 | 1970-08-25 | Lummus Co | Method of transferring impregnated wood chips from an impregnating vessel to a digester |
| FR1601408A (en:Method) * | 1967-06-20 | 1970-08-24 | ||
| US3703435A (en) * | 1967-11-09 | 1972-11-21 | Sunds Ab | Method for finely disintegrating pulp,preferentially cellulose pulp,in connection with the bleaching thereof with gaseous bleaching agent |
| OA03094A (fr) * | 1968-07-11 | 1970-12-15 | P P I South African Pulp And P | Perfectionnements à la délignification et au blanchiment des pâtes de cellulose avec l'oxygène gazeux. |
| SE335053B (en:Method) * | 1969-05-13 | 1971-05-10 | Mo Och Domsjoe Ab | |
| CA918978A (en) * | 1970-01-08 | 1973-01-16 | G. Jamieson Allan | Oxygen bleaching |
| SE355614B (en:Method) * | 1970-05-13 | 1973-04-30 | Mo Och Domsjoe Ab | |
| SE343092B (en:Method) * | 1970-06-22 | 1972-02-28 | Mo Och Domsjoe Ab | |
| SU372305A1 (ru) | 1971-02-22 | 1973-03-01 | Всесоюзный научно исследовательский институт целлюлозно бумажной промышленности | Способ получения целлюлозы |
| US3790637A (en) * | 1972-05-04 | 1974-02-05 | American Cyanamid Co | Process for the manufacture of vanillin from sulfite waste liquor |
-
1975
- 1975-05-23 GB GB22637/75A patent/GB1505529A/en not_active Expired
- 1975-05-23 FI FI751509A patent/FI58360C/fi not_active IP Right Cessation
- 1975-05-26 DE DE2523191A patent/DE2523191C3/de not_active Expired
- 1975-06-10 JP JP50070099A patent/JPS5214323B2/ja not_active Expired
- 1975-06-10 CA CA228,982A patent/CA1036759A/en not_active Expired
- 1975-06-11 US US05/586,114 patent/US4050981A/en not_active Expired - Lifetime
- 1975-06-12 FR FR7518413A patent/FR2274728A1/fr active Granted
- 1975-06-13 IT IT68532/75A patent/IT1036296B/it active
- 1975-06-13 NO NO752103A patent/NO145922C/no unknown
- 1975-06-13 BR BR4812/75D patent/BR7503748A/pt unknown
- 1975-06-13 CH CH770475A patent/CH611956A5/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US4050981A (en) | 1977-09-27 |
| DE2523191C3 (de) | 1985-01-03 |
| CH611956A5 (en:Method) | 1979-06-29 |
| BR7503748A (pt) | 1976-07-06 |
| DE2523191B2 (de) | 1976-11-25 |
| GB1505529A (en) | 1978-03-30 |
| FI751509A7 (en:Method) | 1975-12-15 |
| NO752103L (en:Method) | 1975-12-16 |
| DE2523191A1 (de) | 1975-12-18 |
| FR2274728B1 (en:Method) | 1977-12-09 |
| NO145922B (no) | 1982-03-15 |
| FI58360B (fi) | 1980-09-30 |
| FR2274728A1 (fr) | 1976-01-09 |
| IT1036296B (it) | 1979-10-30 |
| JPS5188701A (en:Method) | 1976-08-03 |
| NO145922C (no) | 1982-06-23 |
| CA1036759A (en) | 1978-08-22 |
| FI58360C (fi) | 1981-01-12 |