CA895757A - Single-stage soda-oxygen pulping - Google Patents
Single-stage soda-oxygen pulpingInfo
- Publication number
- CA895757A CA895757A CA895757A CA895757DA CA895757A CA 895757 A CA895757 A CA 895757A CA 895757 A CA895757 A CA 895757A CA 895757D A CA895757D A CA 895757DA CA 895757 A CA895757 A CA 895757A
- Authority
- CA
- Canada
- Prior art keywords
- oxygen pulping
- stage soda
- soda
- stage
- pulping
- 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S162/00—Paper making and fiber liberation
- Y10S162/02—Chip soaking
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA79123 | 1970-04-03 | ||
US2800470A | 1970-04-13 | 1970-04-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA895757A true CA895757A (en) | 1972-03-21 |
Family
ID=25666342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA895757A Expired CA895757A (en) | 1970-04-03 | 1970-04-03 | Single-stage soda-oxygen pulping |
Country Status (2)
Country | Link |
---|---|
US (1) | US3695994A (en) |
CA (1) | CA895757A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4172006A (en) * | 1976-08-26 | 1979-10-23 | Weyerhaeuser Company | Method of delignifying wood chips with oxygen by adding cooking liquor under pressure |
US4338158A (en) * | 1976-04-09 | 1982-07-06 | Weyerhaeuser Company | Pulping in the presence of a protector |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3883391A (en) * | 1974-01-16 | 1975-05-13 | Int Paper Co | Treatment of lignocellulosic material with an aqueous containing cyanide ions and an alkaline earth metal salt |
CA1031110A (en) * | 1974-12-19 | 1978-05-16 | Macmillan Bloedel Limited | High yield pulping process |
US4091749A (en) * | 1975-01-02 | 1978-05-30 | Macmillan Bloedel Limited | Alkaline pulping of lignocellulosic material with amine pretreatment |
US4127439A (en) * | 1977-01-28 | 1978-11-28 | Crown Zellerbach Corporation | Pretreatment of lignocellulose with anthraquinone prior to pulping |
US4622101A (en) * | 1984-10-01 | 1986-11-11 | International Paper Company | Method of oxygen bleaching with ferricyanide lignocellulosic material |
US4622100A (en) * | 1984-10-01 | 1986-11-11 | International Paper Company | Process for the delignification of lignocellulosic material with oxygen, ferricyanide, and a protector |
AU605745B2 (en) * | 1985-09-20 | 1991-01-24 | Kimberly-Clark Worldwide, Inc. | Method of preparing pulp with stabilizers and peroxide prior to mechanical refining |
WO2010066026A1 (en) | 2008-12-08 | 2010-06-17 | Fpinnovations | Increasing alkaline pulping yield for softwood with metal ions |
-
1970
- 1970-04-03 CA CA895757A patent/CA895757A/en not_active Expired
- 1970-04-13 US US28004A patent/US3695994A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4338158A (en) * | 1976-04-09 | 1982-07-06 | Weyerhaeuser Company | Pulping in the presence of a protector |
US4172006A (en) * | 1976-08-26 | 1979-10-23 | Weyerhaeuser Company | Method of delignifying wood chips with oxygen by adding cooking liquor under pressure |
Also Published As
Publication number | Publication date |
---|---|
US3695994A (en) | 1972-10-03 |
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