FI50644B - - Google Patents
Info
- Publication number
- FI50644B FI50644B FI3632/69A FI363269A FI50644B FI 50644 B FI50644 B FI 50644B FI 3632/69 A FI3632/69 A FI 3632/69A FI 363269 A FI363269 A FI 363269A FI 50644 B FI50644 B FI 50644B
- 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
- D21C9/123—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with Cl2O
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 |
|---|---|---|---|
| GB59738/68A GB1242709A (en) | 1968-12-16 | 1968-12-16 | Bleaching of cellulosic pulp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI50644B true FI50644B (en) | 1976-02-02 |
| FI50644C FI50644C (en) | 1976-05-10 |
Family
ID=10484328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI693632A FI50644C (en) | 1968-12-16 | 1969-12-15 | Bleaching of cellulose pulp in gas phase with chlorine monoxide. |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3619349A (en) |
| FI (1) | FI50644C (en) |
| GB (1) | GB1242709A (en) |
| NO (1) | NO127544B (en) |
| SE (1) | SE365831B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA989112A (en) * | 1972-05-30 | 1976-05-18 | Pulp And Paper Research Institute Of Canada | Bleaching of textiles with chlorine monoxide |
| US3907632A (en) * | 1973-10-23 | 1975-09-23 | Ppg Industries Inc | Bleaching cellulosic pulps with gaseous chlorine at a pH of 7 to 10 in a multistage bleaching process |
| US3990843A (en) * | 1974-08-05 | 1976-11-09 | The Dow Chemical Company | Method for bleaching raw cotton and cotton textiles |
| US20030056295A1 (en) * | 2001-06-06 | 2003-03-27 | Martin Ragnar | Reduction of organically bound chlorine formed in chlorine dioxide bleaching |
| US20050045291A1 (en) * | 2002-08-08 | 2005-03-03 | Martin Ragnar | Reduction of organically bound chlorine formed in chlorine dioxide bleaching |
| US20120180964A1 (en) * | 2011-01-14 | 2012-07-19 | The Red Triangle, LLC | Compositions and methods for bamboo pulping |
| CN112934205A (en) * | 2021-02-24 | 2021-06-11 | 上海交通大学 | Preparation method and application of porous hydrogel adsorbent based on astragalus waste residues |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2178696A (en) * | 1938-02-03 | 1939-11-07 | Pittsburgh Plate Glass Co | Material treatment |
| US3074842A (en) * | 1959-07-24 | 1963-01-22 | Dorr Oliver Inc | Treatment of unbleached cellulose pulps |
-
1968
- 1968-12-16 GB GB59738/68A patent/GB1242709A/en not_active Expired
-
1969
- 1969-12-08 US US882819A patent/US3619349A/en not_active Expired - Lifetime
- 1969-12-15 NO NO04945/69A patent/NO127544B/no unknown
- 1969-12-15 SE SE17239/69A patent/SE365831B/xx unknown
- 1969-12-15 FI FI693632A patent/FI50644C/en active
Also Published As
| Publication number | Publication date |
|---|---|
| SE365831B (en) | 1974-04-01 |
| FI50644C (en) | 1976-05-10 |
| US3619349A (en) | 1971-11-09 |
| NO127544B (en) | 1973-07-09 |
| GB1242709A (en) | 1971-08-11 |