ES2002755A6 - Method of pretreating pulp with stabilizers and peroxide prior to mechanical refining. - Google Patents
Method of pretreating pulp with stabilizers and peroxide prior to mechanical refining.Info
- Publication number
- ES2002755A6 ES2002755A6 ES8602010A ES8602010A ES2002755A6 ES 2002755 A6 ES2002755 A6 ES 2002755A6 ES 8602010 A ES8602010 A ES 8602010A ES 8602010 A ES8602010 A ES 8602010A ES 2002755 A6 ES2002755 A6 ES 2002755A6
- Authority
- ES
- Spain
- Prior art keywords
- stabilizers
- pulp
- refining
- peroxide prior
- mechanical refining
- 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)
Abstract
Production of novel pulp, primarily wood pulp, from chips using pre-treatment with stabilizers and alkaline peroxide prior to mechanical fiberization (refining) to increase the brightness of the resulting fibers and the papermaking strength achievable with the fibers. The novel aspect of the pre-treatment prior to refining is that it results in the ''in situ'' formation within the chips of a stabilizing flock or sol.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US77845785A | 1985-09-20 | 1985-09-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2002755A6 true ES2002755A6 (en) | 1988-10-01 |
Family
ID=25113415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES8602010A Expired ES2002755A6 (en) | 1985-09-20 | 1986-09-19 | Method of pretreating pulp with stabilizers and peroxide prior to mechanical refining. |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0239583B2 (en) |
AR (1) | AR243622A1 (en) |
AU (3) | AU605745B2 (en) |
BR (1) | BR8606875A (en) |
CA (1) | CA1274657A (en) |
DE (1) | DE3676490D1 (en) |
ES (1) | ES2002755A6 (en) |
MX (1) | MX174399B (en) |
PT (1) | PT83406B (en) |
WO (1) | WO1987001746A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE458690B (en) * | 1986-11-06 | 1989-04-24 | Sunds Defibrator | MAKE MANUFACTURING MECHANICAL MASS FROM LIGNOCELLULOSALLY MATERIAL IN PIECE FORM WITH A LENGTH IN THE FIBER DIRECTION OF AT LEAST 200 MM |
CA2057231A1 (en) * | 1991-01-07 | 1992-07-08 | Ulrike Tschirner | Method of pretreating lignocellulosic materials prior to alkaline peroxide high yield pulping |
FR2672315B1 (en) * | 1991-01-31 | 1996-06-07 | Hoechst France | NEW PROCESS FOR REFINING PAPER PULP. |
CA2631545C (en) * | 2005-12-02 | 2014-08-19 | Akzo Nobel N.V. | Process of producing high-yield pulp |
US8268122B2 (en) | 2005-12-02 | 2012-09-18 | Akzo Nobel N.V. | Process of producing high-yield pulp |
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 (en) * | 1928-05-15 | 1930-04-17 | Carl G Schwalbe Dr | Process for the production of pulp from lignified fibers |
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 (en) * | 1979-01-12 | 1984-12-03 | Sunds Defibrator | METHODS OF MANUFACTURING BLEACHED, MECHANICAL, CHEMICAL MECHANICAL AND SEMI-CHEMICAL MASSES OF LIGNOCELLULOSE FIBER MATERIALS |
JPS63402A (en) * | 1986-06-18 | 1988-01-05 | Toyota Motor Corp | Powdery raw material for sintered forming and sintered forming method for using same |
-
1986
- 1986-08-13 AU AU62253/86A patent/AU605745B2/en not_active Ceased
- 1986-08-13 EP EP19860905113 patent/EP0239583B2/en not_active Expired - Lifetime
- 1986-08-13 DE DE8686905113T patent/DE3676490D1/en not_active Expired - Lifetime
- 1986-08-13 BR BR8606875A patent/BR8606875A/en not_active IP Right Cessation
- 1986-08-13 WO PCT/US1986/001659 patent/WO1987001746A1/en active IP Right Grant
- 1986-09-18 CA CA000518592A patent/CA1274657A/en not_active Expired
- 1986-09-19 AR AR30530786A patent/AR243622A1/en active
- 1986-09-19 PT PT8340686A patent/PT83406B/en not_active IP Right Cessation
- 1986-09-19 MX MX377486A patent/MX174399B/en unknown
- 1986-09-19 ES ES8602010A patent/ES2002755A6/en 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 |
---|---|
AU6658290A (en) | 1991-01-31 |
EP0239583A1 (en) | 1987-10-07 |
PT83406A (en) | 1986-10-01 |
AU6225386A (en) | 1987-04-07 |
EP0239583A4 (en) | 1988-03-22 |
EP0239583B1 (en) | 1991-01-02 |
AR243622A1 (en) | 1993-08-31 |
PT83406B (en) | 1989-05-12 |
AU663781B2 (en) | 1995-10-19 |
BR8606875A (en) | 1987-11-03 |
WO1987001746A1 (en) | 1987-03-26 |
AU605745B2 (en) | 1991-01-24 |
CA1274657A (en) | 1990-10-02 |
MX174399B (en) | 1994-05-13 |
EP0239583B2 (en) | 1994-01-12 |
DE3676490D1 (en) | 1991-02-07 |
AU3984493A (en) | 1993-08-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SA6 | Expiration date (snapshot 920101) |
Free format text: 2006-09-19 |
|
PC1A | Transfer granted |