CA994961A - Method in the making of semi-chemical pulp by means of alkaline digesting liquid having as main constituents na2s and na2co3 (green liquor) - Google Patents

Method in the making of semi-chemical pulp by means of alkaline digesting liquid having as main constituents na2s and na2co3 (green liquor)

Info

Publication number
CA994961A
CA994961A CA143,743A CA143743A CA994961A CA 994961 A CA994961 A CA 994961A CA 143743 A CA143743 A CA 143743A CA 994961 A CA994961 A CA 994961A
Authority
CA
Canada
Prior art keywords
na2s
na2co3
semi
making
chemical pulp
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
CA143,743A
Other languages
English (en)
Other versions
CA143743S (en
Inventor
Karl N. Cederquist
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.)
Valmet AB
Original Assignee
Defibrator AB
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 Defibrator AB filed Critical Defibrator AB
Application granted granted Critical
Publication of CA994961A publication Critical patent/CA994961A/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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
    • D21C11/08—Deodorisation ; Elimination of malodorous compounds, e.g. sulfur compounds such as hydrogen sulfide or mercaptans, from gas streams
    • 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0057—Oxidation of liquors, e.g. in order to reduce the losses of sulfur compounds, followed by evaporation or combustion if the liquor in question is a black liquor
CA143,743A 1971-06-04 1972-06-02 Method in the making of semi-chemical pulp by means of alkaline digesting liquid having as main constituents na2s and na2co3 (green liquor) Expired CA994961A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE729371A SE350078B (enExample) 1971-06-04 1971-06-04

Publications (1)

Publication Number Publication Date
CA994961A true CA994961A (en) 1976-08-17

Family

ID=20270971

Family Applications (1)

Application Number Title Priority Date Filing Date
CA143,743A Expired CA994961A (en) 1971-06-04 1972-06-02 Method in the making of semi-chemical pulp by means of alkaline digesting liquid having as main constituents na2s and na2co3 (green liquor)

Country Status (6)

Country Link
JP (1) JPS5335601B1 (enExample)
CA (1) CA994961A (enExample)
DE (1) DE2226777C3 (enExample)
FR (1) FR2140222A1 (enExample)
GB (1) GB1396132A (enExample)
SE (1) SE350078B (enExample)

Also Published As

Publication number Publication date
SE350078B (enExample) 1972-10-16
DE2226777C3 (de) 1975-04-10
DE2226777B2 (de) 1974-08-29
DE2226777A1 (de) 1973-02-08
JPS5335601B1 (enExample) 1978-09-28
FR2140222A1 (enExample) 1973-01-12
GB1396132A (en) 1975-06-04

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