CA1153852A - Methode de digestion du bois dans les sulfites acides - Google Patents

Methode de digestion du bois dans les sulfites acides

Info

Publication number
CA1153852A
CA1153852A CA000355337A CA355337A CA1153852A CA 1153852 A CA1153852 A CA 1153852A CA 000355337 A CA000355337 A CA 000355337A CA 355337 A CA355337 A CA 355337A CA 1153852 A CA1153852 A CA 1153852A
Authority
CA
Canada
Prior art keywords
cooking
wood
temperature
combined
liquor
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
CA000355337A
Other languages
English (en)
Inventor
Phyllis C. Leithem
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.)
ITT Inc
Original Assignee
ITT Industries Inc
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
Priority claimed from US06/131,813 external-priority patent/US4295929A/en
Application filed by ITT Industries Inc filed Critical ITT Industries Inc
Application granted granted Critical
Publication of CA1153852A publication Critical patent/CA1153852A/fr
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
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites

Landscapes

  • Paper (AREA)
CA000355337A 1979-07-03 1980-07-03 Methode de digestion du bois dans les sulfites acides Expired CA1153852A (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US5452579A 1979-07-03 1979-07-03
US54,525 1979-07-03
US131,813 1980-03-19
US06/131,813 US4295929A (en) 1979-07-03 1980-03-19 Process for acid sulfite digestion of wood

Publications (1)

Publication Number Publication Date
CA1153852A true CA1153852A (fr) 1983-09-20

Family

ID=26733125

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000355337A Expired CA1153852A (fr) 1979-07-03 1980-07-03 Methode de digestion du bois dans les sulfites acides

Country Status (2)

Country Link
CA (1) CA1153852A (fr)
DE (1) DE3024420A1 (fr)

Also Published As

Publication number Publication date
DE3024420A1 (de) 1981-01-08
DE3024420C2 (fr) 1992-07-09

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Legal Events

Date Code Title Description
MKEX Expiry