FI873234A0 - Blekningsfoerfarande och -sammansaettning. - Google Patents
Blekningsfoerfarande och -sammansaettning.Info
- Publication number
- FI873234A0 FI873234A0 FI873234A FI873234A FI873234A0 FI 873234 A0 FI873234 A0 FI 873234A0 FI 873234 A FI873234 A FI 873234A FI 873234 A FI873234 A FI 873234A FI 873234 A0 FI873234 A0 FI 873234A0
- Authority
- FI
- Finland
- Prior art keywords
- blekningsfoerfarande
- sammansaettning
- och
- blekningsfoerfarande och
- Prior art date
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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/801,463 US4740212A (en) | 1985-11-25 | 1985-11-25 | Process and composition for bleaching cellulosic material with hypochlorous acid |
US80146385 | 1985-11-25 | ||
US8602489 | 1986-11-19 | ||
PCT/US1986/002489 WO1987003313A1 (en) | 1985-11-25 | 1986-11-19 | Bleaching process and composition |
Publications (4)
Publication Number | Publication Date |
---|---|
FI873234A0 true FI873234A0 (fi) | 1987-07-23 |
FI873234A FI873234A (fi) | 1987-07-23 |
FI87373B FI87373B (fi) | 1992-09-15 |
FI87373C FI87373C (fi) | 1992-12-28 |
Family
ID=25181168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI873234A FI87373C (fi) | 1985-11-25 | 1987-07-23 | Blekningsfoerfarande och -blandning |
Country Status (7)
Country | Link |
---|---|
US (1) | US4740212A (fi) |
EP (1) | EP0246314A4 (fi) |
JP (1) | JPS63501806A (fi) |
BR (1) | BR8607001A (fi) |
CA (1) | CA1262501A (fi) |
FI (1) | FI87373C (fi) |
WO (1) | WO1987003313A1 (fi) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2033077C (en) * | 1989-05-15 | 1996-08-27 | Ronnie G. Hise | Method for reducing chlorinated compounds produced during chlorination stage bleaching of pulp |
DE3923728A1 (de) * | 1989-07-18 | 1991-01-24 | Degussa | Verfahren zur stabilisierung der viskositaet von zellstoffen |
US5792316A (en) * | 1992-02-28 | 1998-08-11 | International Paper Company | Bleaching process for kraft pulp employing high consistency chlorinated pulp treated with gaseous chlorine and ozone |
US5273733A (en) * | 1992-04-14 | 1993-12-28 | Eka Nobel Inc. | Process for the production of chlorine dioxide |
US5350423A (en) * | 1992-09-23 | 1994-09-27 | Burlington Industries Inc. | Fabric finishing procedure |
FR2724951A1 (fr) | 1994-09-26 | 1996-03-29 | Elysees Balzac Financiere | Materiaux a base de cellulose regeneree presentant une resistance amelioree a l'eau de javel et procede pour leur preparation |
US5620563A (en) * | 1994-10-31 | 1997-04-15 | Pulp Paper Res Inst | Process for delignification and bleaching of chemical wood pulps with hydrogen peroxide and a dicyandiamide activator |
US5645688A (en) * | 1995-01-30 | 1997-07-08 | Vinings Industries, Inc. | Bleaching compositions and processes employing sulfamates and polyaminocarboxylic acids |
US5639348A (en) * | 1995-01-30 | 1997-06-17 | Vinings Industries, Inc. | Bleaching compositions comprising sulfamates and borates or gluconates and processes |
FI99148C (fi) * | 1995-12-18 | 1997-10-10 | Metsae Serla Oy | Menetelmä paperimassan valmistamiseksi |
US6162371A (en) * | 1997-12-22 | 2000-12-19 | S. C. Johnson & Son, Inc. | Stabilized acidic chlorine bleach composition and method of use |
CA2821954C (en) | 2010-12-22 | 2019-02-26 | Akzo Nobel Chemicals International B.V. | Process for improving chlorine dioxide bleaching of pulp |
FI123926B (fi) * | 2012-04-03 | 2013-12-13 | Upm Kymmene Corp | Menetelmä sellun valkaisemiseksi |
JP6197717B2 (ja) * | 2014-03-25 | 2017-09-20 | 王子ホールディングス株式会社 | 溶解パルプの製造方法 |
US9512560B2 (en) | 2014-10-31 | 2016-12-06 | Quantum Technologies, Inc. | Short oxygen delignification method |
JP6580116B2 (ja) * | 2017-12-20 | 2019-09-25 | ユニ・チャーム株式会社 | リサイクルパルプ繊維の製造方法 |
WO2022120458A1 (en) * | 2020-12-11 | 2022-06-16 | Sixring Inc. | Combination approach to delignification of biomass under ambient conditions |
CA3102541A1 (en) * | 2020-12-11 | 2022-06-11 | Sixring Inc. | Novel approach to biomass delignification |
CA3102944A1 (en) * | 2020-12-18 | 2022-06-18 | Sixring Inc. | Novel approach to biomass delignification |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2070893A (en) * | 1935-05-10 | 1937-02-16 | Glass Hugh Bryson | Process for improving the color of wood pulp |
US2174534A (en) * | 1936-04-22 | 1939-10-03 | Du Pont | Chemical process |
FR821563A (fr) * | 1936-08-14 | 1937-12-08 | Electrochlore | Procédé de blanchiment des ligno et ligno-photo-celluloses |
US2178696A (en) * | 1938-02-03 | 1939-11-07 | Pittsburgh Plate Glass Co | Material treatment |
US2239606A (en) * | 1938-08-25 | 1941-04-22 | West Virginia Pulp & Paper Co | Method of bleaching kraft pulp |
US2478379A (en) * | 1948-07-30 | 1949-08-09 | Hercules Powder Co Ltd | Cellulose bleaching |
BE578918A (fi) * | 1958-06-11 | |||
US3177111A (en) * | 1962-12-06 | 1965-04-06 | Weyerhaeuser Co | Hypochlorite sulfamic acid process of bleaching cellulosic materials |
US3308012A (en) * | 1963-08-19 | 1967-03-07 | Du Pont | Use of sulfamic acid in chlorination step of multistage bleaching process |
US3767586A (en) * | 1971-09-10 | 1973-10-23 | Du Pont | Process for preparing stable aqueous solutions of n halo compounds |
JPS5318602B2 (fi) * | 1973-07-20 | 1978-06-16 | ||
US4096029A (en) * | 1976-04-26 | 1978-06-20 | The Dow Chemical Company | Cellulosic pulp delignification using an acidic bromine-chlorine mixture |
US4248663A (en) * | 1978-07-05 | 1981-02-03 | Pulp And Paper Research Institute Of Canada | Pulping with an alkaline liquor containing a cyclic keto compound and an amino compound |
US4295928A (en) * | 1980-08-07 | 1981-10-20 | Nalco Chemical Company | Phenolic compounds as viscosity preservatives during hypochlorite pulp bleaching |
US4298428A (en) * | 1980-08-07 | 1981-11-03 | Nalco Chemical Company | Use of additives in pulp bleaching processes to preserve pulp strength |
JPS57191387A (en) * | 1981-05-18 | 1982-11-25 | Kogyo Gijutsuin | Multi-stage bleaching of mixed regenerated pulp |
JPS58186689A (ja) * | 1982-04-22 | 1983-10-31 | 三菱瓦斯化学株式会社 | 化学パルプの漂白方法 |
FR2552125B1 (fr) * | 1983-09-16 | 1986-03-21 | Interox | Procede pour le taitement des matieres cellulosiques par des agents oxydants |
US4487656A (en) * | 1983-09-30 | 1984-12-11 | Melamine Chemicals, Inc. | Process for bleaching paper pulp using melamine as a viscosity stabilizer |
US4484980A (en) * | 1983-09-30 | 1984-11-27 | Melamine Chemicals, Inc. | Process for bleaching paper pulp using caffeine or guanine as a viscosity stabilizers |
-
1985
- 1985-11-25 US US06/801,463 patent/US4740212A/en not_active Expired - Fee Related
-
1986
- 1986-11-19 WO PCT/US1986/002489 patent/WO1987003313A1/en not_active Application Discontinuation
- 1986-11-19 EP EP19860907201 patent/EP0246314A4/en not_active Withdrawn
- 1986-11-19 BR BR8607001A patent/BR8607001A/pt unknown
- 1986-11-19 JP JP61506301A patent/JPS63501806A/ja active Pending
- 1986-11-24 CA CA000523644A patent/CA1262501A/en not_active Expired
-
1987
- 1987-07-23 FI FI873234A patent/FI87373C/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US4740212A (en) | 1988-04-26 |
CA1262501A (en) | 1989-10-31 |
JPS63501806A (ja) | 1988-07-21 |
EP0246314A4 (en) | 1988-04-26 |
WO1987003313A1 (en) | 1987-06-04 |
FI87373C (fi) | 1992-12-28 |
FI87373B (fi) | 1992-09-15 |
EP0246314A1 (en) | 1987-11-25 |
FI873234A (fi) | 1987-07-23 |
BR8607001A (pt) | 1987-12-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: QUANTUM TECHNOLOGIES, INC. |