CA1039908A - Process for the delignification of lignocellulosic material - Google Patents
Process for the delignification of lignocellulosic materialInfo
- Publication number
- CA1039908A CA1039908A CA221,564A CA221564A CA1039908A CA 1039908 A CA1039908 A CA 1039908A CA 221564 A CA221564 A CA 221564A CA 1039908 A CA1039908 A CA 1039908A
- Authority
- CA
- Canada
- Prior art keywords
- delignification
- process according
- manganous
- alkali
- oxygen
- Prior art date
- 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
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
-
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/222—Use of compounds accelerating the pulping processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Compounds Of Unknown Constitution (AREA)
- Processing Of Solid Wastes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7403451A SE380298B (sv) | 1974-03-14 | 1974-03-14 | Forfarande for delignifiering genom syrgas-alkalibehandling av lignocelluosahaltigt material |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1039908A true CA1039908A (en) | 1978-10-10 |
Family
ID=20320524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA221,564A Expired CA1039908A (en) | 1974-03-14 | 1975-03-07 | Process for the delignification of lignocellulosic material |
Country Status (13)
Country | Link |
---|---|
JP (1) | JPS522002B2 (pt) |
AT (1) | AT345658B (pt) |
BR (1) | BR7501339A (pt) |
CA (1) | CA1039908A (pt) |
CH (1) | CH606601A5 (pt) |
DE (1) | DE2509746C3 (pt) |
FI (1) | FI750635A (pt) |
FR (1) | FR2264125B1 (pt) |
GB (1) | GB1500011A (pt) |
IT (1) | IT1030236B (pt) |
NO (1) | NO140605C (pt) |
SE (1) | SE380298B (pt) |
ZA (1) | ZA751266B (pt) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE7601935L (sv) * | 1975-06-30 | 1976-12-31 | Int Paper Co | Sett att bleka lignincellulosamassa |
JPS6134314A (ja) * | 1984-07-25 | 1986-02-18 | Kawasaki Heavy Ind Ltd | 内燃機関 |
IN167959B (pt) * | 1985-08-05 | 1991-01-12 | Interox | |
AU591509B2 (en) * | 1985-08-05 | 1989-12-07 | Interox Societe Anonyme | Process for the delignification of cellulosic substances |
FI122654B (fi) * | 1997-12-08 | 2012-05-15 | Ovivo Luxembourg Sarl | Menetelmä paperisellumassan valmistamiseksi |
US20100159515A1 (en) * | 2008-12-19 | 2010-06-24 | E.I. Du Pont De Nemours And Company | Oxidative pretreatment of biomass to enhance enzymatic saccharification |
-
1974
- 1974-03-14 SE SE7403451A patent/SE380298B/xx not_active IP Right Cessation
-
1975
- 1975-02-27 IT IT67508/75A patent/IT1030236B/it active
- 1975-02-28 ZA ZA00751266A patent/ZA751266B/xx unknown
- 1975-03-04 CH CH270175A patent/CH606601A5/xx not_active IP Right Cessation
- 1975-03-05 FI FI750635A patent/FI750635A/fi not_active Application Discontinuation
- 1975-03-06 NO NO750744A patent/NO140605C/no unknown
- 1975-03-06 BR BR1339/75A patent/BR7501339A/pt unknown
- 1975-03-06 JP JP50027940A patent/JPS522002B2/ja not_active Expired
- 1975-03-06 DE DE2509746A patent/DE2509746C3/de not_active Expired
- 1975-03-06 GB GB9446/75A patent/GB1500011A/en not_active Expired
- 1975-03-07 FR FR7507206A patent/FR2264125B1/fr not_active Expired
- 1975-03-07 AT AT178875A patent/AT345658B/de not_active IP Right Cessation
- 1975-03-07 CA CA221,564A patent/CA1039908A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AT345658B (de) | 1978-09-25 |
GB1500011A (en) | 1978-02-08 |
ATA178875A (de) | 1978-01-15 |
IT1030236B (it) | 1979-03-30 |
DE2509746B2 (de) | 1977-08-18 |
FI750635A (pt) | 1975-09-15 |
NO140605B (no) | 1979-06-25 |
JPS522002B2 (pt) | 1977-01-19 |
FR2264125B1 (pt) | 1977-11-18 |
FR2264125A1 (pt) | 1975-10-10 |
NO140605C (no) | 1979-10-03 |
CH606601A5 (pt) | 1978-11-15 |
DE2509746A1 (de) | 1975-09-25 |
SE7403451L (pt) | 1975-09-15 |
SE380298B (sv) | 1975-11-03 |
NO750744L (pt) | 1975-09-16 |
DE2509746C3 (de) | 1978-04-27 |
BR7501339A (pt) | 1975-12-09 |
JPS50121501A (pt) | 1975-09-23 |
ZA751266B (en) | 1976-01-28 |
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JP2588495B2 (ja) | 製紙用高収率高漂白度パルプの製造方法 |