CA1274657A - Methode de production et de blanchiment de la pate a rendement eleve - Google Patents
Methode de production et de blanchiment de la pate a rendement eleveInfo
- Publication number
- CA1274657A CA1274657A CA000518592A CA518592A CA1274657A CA 1274657 A CA1274657 A CA 1274657A CA 000518592 A CA000518592 A CA 000518592A CA 518592 A CA518592 A CA 518592A CA 1274657 A CA1274657 A CA 1274657A
- Authority
- CA
- Canada
- Prior art keywords
- chips
- impregnation
- per liter
- peroxide
- impregnation solution
- 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
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/14—Disintegrating in mills
- D21B1/16—Disintegrating in mills in the presence of chemical agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
- D21B1/021—Pretreatment of the raw materials by chemical or physical means by chemical means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US77845785A | 1985-09-20 | 1985-09-20 | |
US778,457 | 1985-09-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1274657A true CA1274657A (fr) | 1990-10-02 |
Family
ID=25113415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000518592A Expired CA1274657A (fr) | 1985-09-20 | 1986-09-18 | Methode de production et de blanchiment de la pate a rendement eleve |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0239583B2 (fr) |
AR (1) | AR243622A1 (fr) |
AU (3) | AU605745B2 (fr) |
BR (1) | BR8606875A (fr) |
CA (1) | CA1274657A (fr) |
DE (1) | DE3676490D1 (fr) |
ES (1) | ES2002755A6 (fr) |
MX (1) | MX174399B (fr) |
PT (1) | PT83406B (fr) |
WO (1) | WO1987001746A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE458690B (sv) * | 1986-11-06 | 1989-04-24 | Sunds Defibrator | Saett att framstaella mekanisk massa fraan lignocellulosahaltigt material i styckeform med en laengd i fiberriktningen av minst 200 mm |
CA2057231A1 (fr) * | 1991-01-07 | 1992-07-08 | Ulrike Tschirner | Methode pour le pretraitement de matieres lignocellulosiques avant le depulpage alkalin a haut rendement au peroxyde |
FR2672315B1 (fr) * | 1991-01-31 | 1996-06-07 | Hoechst France | Nouveau procede de raffinage de la pate a papier. |
US8268122B2 (en) | 2005-12-02 | 2012-09-18 | Akzo Nobel N.V. | Process of producing high-yield pulp |
EP1954871B1 (fr) * | 2005-12-02 | 2011-06-29 | Akzo Nobel N.V. | Procede de production de pate a haut rendement |
US9273270B2 (en) | 2014-02-20 | 2016-03-01 | Church & Dwight Co., Inc. | Unit dose cleaning products for delivering a peroxide-containing bleaching agent |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE496197C (de) * | 1928-05-15 | 1930-04-17 | Carl G Schwalbe Dr | Verfahren zur Herstellung von Zellstoff aus verholzten Fasern |
CA895757A (en) * | 1970-04-03 | 1972-03-21 | E. Worster Hans | Single-stage soda-oxygen pulping |
US4187141A (en) * | 1975-02-24 | 1980-02-05 | Alf Societe Anonyme | Method of producing bleached mechanical pulp |
SE436368B (sv) * | 1979-01-12 | 1984-12-03 | Sunds Defibrator | Sett att framstella blekta, mekaniska, kemimekaniska och halvkemiska massor av lignocellulosahaltiga fibermaterial |
JPS63402A (ja) * | 1986-06-18 | 1988-01-05 | Toyota Motor Corp | 焼結鍛造用原料粉末およびその粉末を使用した焼結鍛造法 |
-
1986
- 1986-08-13 BR BR8606875A patent/BR8606875A/pt not_active IP Right Cessation
- 1986-08-13 DE DE8686905113T patent/DE3676490D1/de not_active Expired - Lifetime
- 1986-08-13 WO PCT/US1986/001659 patent/WO1987001746A1/fr active IP Right Grant
- 1986-08-13 AU AU62253/86A patent/AU605745B2/en not_active Ceased
- 1986-08-13 EP EP19860905113 patent/EP0239583B2/fr not_active Expired - Lifetime
- 1986-09-18 CA CA000518592A patent/CA1274657A/fr not_active Expired
- 1986-09-19 AR AR30530786A patent/AR243622A1/es active
- 1986-09-19 PT PT8340686A patent/PT83406B/pt not_active IP Right Cessation
- 1986-09-19 MX MX377486A patent/MX174399B/es unknown
- 1986-09-19 ES ES8602010A patent/ES2002755A6/es not_active Expired
-
1990
- 1990-11-14 AU AU66582/90A patent/AU6658290A/en not_active Abandoned
-
1993
- 1993-05-26 AU AU39844/93A patent/AU663781B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
PT83406B (pt) | 1989-05-12 |
DE3676490D1 (de) | 1991-02-07 |
EP0239583B1 (fr) | 1991-01-02 |
AU605745B2 (en) | 1991-01-24 |
BR8606875A (pt) | 1987-11-03 |
AR243622A1 (es) | 1993-08-31 |
AU3984493A (en) | 1993-08-19 |
ES2002755A6 (es) | 1988-10-01 |
AU663781B2 (en) | 1995-10-19 |
AU6658290A (en) | 1991-01-31 |
EP0239583A4 (fr) | 1988-03-22 |
EP0239583B2 (fr) | 1994-01-12 |
EP0239583A1 (fr) | 1987-10-07 |
AU6225386A (en) | 1987-04-07 |
PT83406A (en) | 1986-10-01 |
WO1987001746A1 (fr) | 1987-03-26 |
MX174399B (es) | 1994-05-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKLA | Lapsed |