CA1012708A - Nitrile pulping in the presence of calcium chloride - Google Patents
Nitrile pulping in the presence of calcium chlorideInfo
- Publication number
- CA1012708A CA1012708A CA198,000A CA198000A CA1012708A CA 1012708 A CA1012708 A CA 1012708A CA 198000 A CA198000 A CA 198000A CA 1012708 A CA1012708 A CA 1012708A
- Authority
- CA
- Canada
- Prior art keywords
- pulping
- nitrile
- calcium chloride
- calcium
- chloride
- 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
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 title 1
- 229910001628 calcium chloride Inorganic materials 0.000 title 1
- 239000001110 calcium chloride Substances 0.000 title 1
- 150000002825 nitriles Chemical class 0.000 title 1
- 238000004537 pulping Methods 0.000 title 1
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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/222—Use of compounds accelerating the pulping processes
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US433868A US3883391A (en) | 1974-01-16 | 1974-01-16 | Treatment of lignocellulosic material with an aqueous containing cyanide ions and an alkaline earth metal salt |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1012708A true CA1012708A (en) | 1977-06-28 |
Family
ID=23721851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA198,000A Expired CA1012708A (en) | 1974-01-16 | 1974-04-23 | Nitrile pulping in the presence of calcium chloride |
Country Status (4)
Country | Link |
---|---|
US (1) | US3883391A (en) |
CA (1) | CA1012708A (en) |
FR (1) | FR2257733A1 (en) |
SE (1) | SE391205B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3929559A (en) * | 1974-12-16 | 1975-12-30 | Mac Millan Bloedel Ltd | Stabilization of cellulosic material by treatment with ferricyanide ion |
US5728265A (en) * | 1995-06-12 | 1998-03-17 | Henkel Corporation | Process for enhancing white liquor penetration into wood chips by contacting the chips with a mixture of the white liquor and a polymethylalkyl siloxane |
WO2010066026A1 (en) * | 2008-12-08 | 2010-06-17 | Fpinnovations | Increasing alkaline pulping yield for softwood with metal ions |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3532596A (en) * | 1967-09-22 | 1970-10-06 | Westvaco Corp | Method for stabilizing polysaccharides against alkaline attack |
CA895757A (en) * | 1970-04-03 | 1972-03-21 | E. Worster Hans | Single-stage soda-oxygen pulping |
US3663358A (en) * | 1970-04-29 | 1972-05-16 | Westvaco Corp | A METHOD FOR INCREASING BISULFITE PULP YIELD COMPRISING TREATING LIGNOCELLULOSIC MATERIAL WITH CYANIDE IONS AT A pH OF 7{14 12 PRIOR TO DIGESTION |
-
1974
- 1974-01-16 US US433868A patent/US3883391A/en not_active Expired - Lifetime
- 1974-04-23 SE SE7405422A patent/SE391205B/en unknown
- 1974-04-23 CA CA198,000A patent/CA1012708A/en not_active Expired
- 1974-05-15 FR FR7416912A patent/FR2257733A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
SE7405422L (en) | 1975-07-17 |
FR2257733A1 (en) | 1975-08-08 |
US3883391A (en) | 1975-05-13 |
SE391205B (en) | 1977-02-07 |
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