CA1012708A - Nitrile pulping in the presence of calcium chloride - Google Patents

Nitrile pulping in the presence of calcium chloride

Info

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
Application number
CA198,000A
Other versions
CA198000S (en
Inventor
Richard B. Phillips
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Paper Co
Original Assignee
International Paper Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by International Paper Co filed Critical International Paper Co
Application granted granted Critical
Publication of CA1012708A publication Critical patent/CA1012708A/en
Expired legal-status Critical Current

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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes
CA198,000A 1974-01-16 1974-04-23 Nitrile pulping in the presence of calcium chloride Expired CA1012708A (en)

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)

* Cited by examiner, † Cited by third party
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
US8591702B2 (en) 2008-12-08 2013-11-26 Fpinnovations Increasing alkaline pulping yield for softwood with metal ions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
US3883391A (en) 1975-05-13
SE7405422L (en) 1975-07-17
SE391205B (en) 1977-02-07
FR2257733A1 (en) 1975-08-08

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