FI771325A - - Google Patents
Info
- Publication number
- FI771325A FI771325A FI771325A FI771325A FI771325A FI 771325 A FI771325 A FI 771325A FI 771325 A FI771325 A FI 771325A FI 771325 A FI771325 A FI 771325A FI 771325 A FI771325 A FI 771325A
- 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
- 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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/680,245 US4096029A (en) | 1976-04-26 | 1976-04-26 | Cellulosic pulp delignification using an acidic bromine-chlorine mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FI771325A true FI771325A (US20080293856A1-20081127-C00150.png) | 1977-10-27 |
Family
ID=24730332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI771325A FI771325A (US20080293856A1-20081127-C00150.png) | 1976-04-26 | 1977-04-26 |
Country Status (4)
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4255233A (en) * | 1979-10-18 | 1981-03-10 | Nalco Chemical Company | Use of polyacrylic acid in pulp bleaching processes to preserve pulp strength and aid in brightness |
| US4298428A (en) * | 1980-08-07 | 1981-11-03 | Nalco Chemical Company | Use of additives in pulp bleaching processes to preserve pulp strength |
| US4295928A (en) * | 1980-08-07 | 1981-10-20 | Nalco Chemical Company | Phenolic compounds as viscosity preservatives during hypochlorite pulp bleaching |
| US4600406A (en) * | 1985-03-22 | 1986-07-15 | Diversey Wyandotte Corporation | Method of low temperature bleaching with reduced amounts of chlorine requiring reduced bleaching intervals |
| US4740212A (en) * | 1985-11-25 | 1988-04-26 | Quantum Technologies, Inc. | Process and composition for bleaching cellulosic material with hypochlorous acid |
| FI99148C (fi) * | 1995-12-18 | 1997-10-10 | Metsae Serla Oy | Menetelmä paperimassan valmistamiseksi |
| US5942126A (en) * | 1997-01-03 | 1999-08-24 | Nalco Chemical Company | Process to manufacture stabilized alkali or alkaline earth metal hypobromite and uses thereof in water treatment to control microbial fouling |
| US6440476B2 (en) | 1997-01-03 | 2002-08-27 | Nalco Chemical Company | Method to improve quality and appearance of leafy vegetables by using stabilized bromine |
| JP6023953B2 (ja) * | 2013-07-31 | 2016-11-09 | ナルコジャパン合同会社 | 古紙パルプの漂白方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US125658A (en) * | 1872-04-16 | Improvement in processes for bleaching paper pulp | ||
| US1821237A (en) * | 1928-04-27 | 1931-09-01 | Mead Pulp And Paper Company | Control mechanism |
| NL65914C (US20080293856A1-20081127-C00150.png) * | 1946-01-01 | |||
| US2989519A (en) * | 1959-04-23 | 1961-06-20 | Int Paper Canada | Bromide as bleaching catalyst |
| GB940575A (en) * | 1960-05-25 | 1963-10-30 | Mini Of Commerce And Industry | Flameproofed lignocellulosic articles and process for their manufacture |
| US3433702A (en) * | 1965-06-28 | 1969-03-18 | Hooker Chemical Corp | Woodpulp bleaching process |
-
1976
- 1976-04-26 US US05/680,245 patent/US4096029A/en not_active Expired - Lifetime
-
1977
- 1977-04-15 CA CA276,265A patent/CA1080912A/en not_active Expired
- 1977-04-25 SE SE7704743A patent/SE7704743L/xx unknown
- 1977-04-26 FI FI771325A patent/FI771325A/fi not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| US4096029A (en) | 1978-06-20 |
| CA1080912A (en) | 1980-07-08 |
| SE7704743L (sv) | 1977-10-27 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD | Application lapsed |
Owner name: THE DOW CHEMICAL COMPANY |