FI50643B - - Google Patents
Info
- Publication number
- FI50643B FI50643B FI3037/69A FI303769A FI50643B FI 50643 B FI50643 B FI 50643B FI 3037/69 A FI3037/69 A FI 3037/69A FI 303769 A FI303769 A FI 303769A FI 50643 B FI50643 B FI 50643B
- 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
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
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 |
|---|---|---|---|
| SE14638/68A SE314581B (no) | 1968-10-29 | 1968-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI50643B true FI50643B (no) | 1976-02-02 |
| FI50643C FI50643C (fi) | 1976-05-10 |
Family
ID=20299423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI693037A FI50643C (fi) | 1968-10-29 | 1969-10-22 | Selluloosapitoisen aineen käsittelymenetelmä. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3652386A (no) |
| AT (1) | AT297476B (no) |
| BR (1) | BR6913718D0 (no) |
| FI (1) | FI50643C (no) |
| FR (1) | FR2021828A1 (no) |
| NO (1) | NO124320B (no) |
| SE (1) | SE314581B (no) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE355614B (no) * | 1970-05-13 | 1973-04-30 | Mo Och Domsjoe Ab | |
| US3975232A (en) * | 1973-11-19 | 1976-08-17 | Westvaco Corporation | Three stage process for pulping lignocellulosic materials including a cyanide ion containing first stage |
| JPS5138508A (en) * | 1974-09-25 | 1976-03-31 | Harusuke Hayashi | Parupuno sansosankaseisei niokeru hogozai |
| US4338158A (en) * | 1976-04-09 | 1982-07-06 | Weyerhaeuser Company | Pulping in the presence of a protector |
| US4288288A (en) * | 1979-06-15 | 1981-09-08 | Weyerhaeuser Company | Apparatus for mixing chemicals into pulp at a refiner inlet |
| US4715931A (en) * | 1987-03-24 | 1987-12-29 | Betz Laboratories, Inc. | Process for inhibiting aluminum hydroxide deposition in papermaking felts |
| SE502667C2 (sv) * | 1993-07-12 | 1995-12-04 | Kvaerner Pulping Tech | Behandling av fibermaterial med komplexbildare före kokning |
| EP0647466A3 (de) * | 1993-10-08 | 1996-01-17 | Akzo Nobel Nv | Cellulosische Membranen. |
| CA2188568A1 (en) * | 1994-04-28 | 1995-11-09 | Marco Solinas | Oxygen bleaching of cellulosic pulps |
| US6331354B1 (en) | 1996-08-23 | 2001-12-18 | Weyerhaeuser Company | Alkaline pulp having low average degree of polymerization values and method of producing the same |
| US6306334B1 (en) | 1996-08-23 | 2001-10-23 | The Weyerhaeuser Company | Process for melt blowing continuous lyocell fibers |
| US6471727B2 (en) | 1996-08-23 | 2002-10-29 | Weyerhaeuser Company | Lyocell fibers, and compositions for making the same |
| AU2001275621B2 (en) * | 2001-07-17 | 2006-12-21 | Wen-Xi Liang | Oxidative thermochemical drying process for changing hydrophilic/hydrophobic characteristics of natural organic substances |
| JP2012028026A (ja) * | 2010-07-20 | 2012-02-09 | Nippon Chem Ind Co Ltd | リチウム二次電池用負極活物質及びその製造方法 |
| FI125891B (en) * | 2014-08-14 | 2016-03-31 | Scitech Service Oy | Process for the treatment of cellulose and alkali solutions obtained from the treatment of cellulose |
| CN106108104A (zh) * | 2015-12-18 | 2016-11-16 | 广东中烟工业有限责任公司 | 一种降低烟梗中木质素含量的处理方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB681994A (en) * | 1949-05-31 | 1952-11-05 | British Celanese | Improvements in or relating to the production of cellulose |
| US2811518A (en) * | 1955-06-07 | 1957-10-29 | Rayonier Inc | Alkaline refining of wood pulp |
| US3088861A (en) * | 1960-08-03 | 1963-05-07 | Weyerhaeuser Co | Method of manufacturing chemical pulp from lignocellulose material |
| FR1387853A (fr) * | 1963-09-19 | 1965-02-05 | Air Liquide | Délignification et blanchiment des pâtes cellulosiques chimiques et mi-chimiques |
-
1968
- 1968-10-29 SE SE14638/68A patent/SE314581B/xx unknown
-
1969
- 1969-10-22 FI FI693037A patent/FI50643C/fi active
- 1969-10-27 US US869875A patent/US3652386A/en not_active Expired - Lifetime
- 1969-10-28 NO NO694269A patent/NO124320B/no unknown
- 1969-10-28 FR FR6936997A patent/FR2021828A1/fr active Pending
- 1969-10-29 AT AT1020769A patent/AT297476B/de active
- 1969-10-29 BR BR213718/69A patent/BR6913718D0/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3652386A (en) | 1972-03-28 |
| BR6913718D0 (pt) | 1973-05-03 |
| FI50643C (fi) | 1976-05-10 |
| DE1954267B2 (de) | 1973-06-28 |
| AT297476B (de) | 1972-03-27 |
| FR2021828A1 (no) | 1970-07-24 |
| SE314581B (no) | 1969-09-08 |
| DE1954267A1 (de) | 1970-06-25 |
| NO124320B (no) | 1972-04-04 |