CA989560A - Coking of spent pulping liquors used in the alkaline sulfite process - Google Patents

Coking of spent pulping liquors used in the alkaline sulfite process

Info

Publication number
CA989560A
CA989560A CA165,318A CA165318A CA989560A CA 989560 A CA989560 A CA 989560A CA 165318 A CA165318 A CA 165318A CA 989560 A CA989560 A CA 989560A
Authority
CA
Canada
Prior art keywords
coking
spent pulping
sulfite process
alkaline sulfite
pulping liquors
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
CA165,318A
Other languages
English (en)
Other versions
CA165318S (en
Inventor
Howard V. Hess
William F. Franz
Edward L. Cole
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.)
Texaco Development Corp
Original Assignee
Texaco Development Corp
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 Texaco Development Corp filed Critical Texaco Development Corp
Application granted granted Critical
Publication of CA989560A publication Critical patent/CA989560A/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
    • D21C11/02—Regeneration of pulp liquors or effluent waste waters of acid, neutral or alkaline sulfite lye
CA165,318A 1972-04-25 1973-03-06 Coking of spent pulping liquors used in the alkaline sulfite process Expired CA989560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US247379A US3884751A (en) 1972-04-25 1972-04-25 Coking of spent pulping liquors used in the alkaline sulfite process

Publications (1)

Publication Number Publication Date
CA989560A true CA989560A (en) 1976-05-25

Family

ID=22934706

Family Applications (1)

Application Number Title Priority Date Filing Date
CA165,318A Expired CA989560A (en) 1972-04-25 1973-03-06 Coking of spent pulping liquors used in the alkaline sulfite process

Country Status (7)

Country Link
US (1) US3884751A (xx)
JP (1) JPS4920403A (xx)
CA (1) CA989560A (xx)
DE (1) DE2301910A1 (xx)
FR (1) FR2181823A1 (xx)
NO (1) NO137652C (xx)
SE (1) SE380301B (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4208245A (en) * 1977-02-03 1980-06-17 St. Regis Paper Company Pyrolysis of spent pulping liquors
FR2426768A1 (fr) * 1978-05-22 1979-12-21 St Regis Paper Co Procede perfectionne de pyrolyse de lessives usagees provenant de la fabrication de pates a papier

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA868884A (en) * 1968-08-21 1971-04-20 Pulp And Paper Research Institute Of Canada Method for the production of activated carbon
US3607619A (en) * 1968-11-29 1971-09-21 Texaco Inc Coking of black liquor in the absence of added free oxygen
US3650888A (en) * 1970-06-11 1972-03-21 Combustion Eng Pollution controlled polysulfide recovery process
US3717545A (en) * 1970-07-17 1973-02-20 Texaco Inc Process for treating waste liquors
US3705077A (en) * 1970-10-09 1972-12-05 Texaco Inc Waste disposal process for spent wood-pulping liquors

Also Published As

Publication number Publication date
SE380301B (sv) 1975-11-03
NO137652C (no) 1978-03-29
FR2181823A1 (xx) 1973-12-07
JPS4920403A (xx) 1974-02-22
US3884751A (en) 1975-05-20
DE2301910A1 (de) 1973-11-08
NO137652B (no) 1977-12-19

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