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CH337719A - Verfahren zum Aufschluss von Holzspänen mit Ammoniumbisulfit-Kochlauge - Google Patents

Verfahren zum Aufschluss von Holzspänen mit Ammoniumbisulfit-Kochlauge

Info

Publication number
CH337719A
CH337719A CH337719DA CH337719A CH 337719 A CH337719 A CH 337719A CH 337719D A CH337719D A CH 337719DA CH 337719 A CH337719 A CH 337719A
Authority
CH
Switzerland
Prior art keywords
digestion
wood chips
cooking liquor
ammonium bisulfite
bisulfite cooking
Prior art date
Application number
Other languages
English (en)
Inventor
Wilhelm Schoeffel Eugene
Martin Barton Daniel
Original Assignee
Sterling Drug 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
Application filed by Sterling Drug Inc filed Critical Sterling Drug Inc
Publication of CH337719A publication Critical patent/CH337719A/de

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
    • 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
    • D21C11/0085—Introduction of auxiliary substances into the regenerating system in order to improve the performance of certain steps of the latter, the presence of these substances being confined to the regeneration cycle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
CH337719D 1954-06-24 1955-06-14 Verfahren zum Aufschluss von Holzspänen mit Ammoniumbisulfit-Kochlauge CH337719A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US439068A US2752243A (en) 1954-06-24 1954-06-24 Ammonia-sulfur dioxide cooking acid regeneration

Publications (1)

Publication Number Publication Date
CH337719A true CH337719A (de) 1959-04-15

Family

ID=23743159

Family Applications (1)

Application Number Title Priority Date Filing Date
CH337719D CH337719A (de) 1954-06-24 1955-06-14 Verfahren zum Aufschluss von Holzspänen mit Ammoniumbisulfit-Kochlauge

Country Status (5)

Country Link
US (1) US2752243A (de)
CH (1) CH337719A (de)
DE (1) DE1037833B (de)
FR (1) FR1127660A (de)
GB (1) GB785561A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1195237B (de) * 1960-04-11 1965-06-16 Ebauches Sa Uhr

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3037901A (en) * 1959-04-16 1962-06-05 Alfred M Thomsen Method of pulping cellulosic substances
US3296064A (en) * 1965-05-04 1967-01-03 William T Neiman Method of treating cellulosic pulping waste liquors with magnesium oxide to form a complex prior to burning thereof
US3607619A (en) * 1968-11-29 1971-09-21 Texaco Inc Coking of black liquor in the absence of added free oxygen
AU428247B2 (en) * 1970-05-08 1972-09-13 Wet combustion of waste liquor
US3944462A (en) * 1971-06-03 1976-03-16 Texaco Inc. Coking of waste kraft pulping liquors at lowered pH
US3816240A (en) * 1972-06-21 1974-06-11 W Franz Minimizing sulfur oxidation in pulping liquor reconstitution
US4067767A (en) * 1972-10-05 1978-01-10 Texaco Inc. Liquid phase coking of spent kraft pulping liquors
CA1095663A (en) * 1975-02-12 1981-02-17 John Gordy Pulping process

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US53839A (en) * 1866-04-10 Improved method of recovering waste alkali used in the manufacture of paper
GB258035A (en) * 1924-07-16 1926-09-16 Erik Hagglund Improved treatment of the black liquor obtained in the manufacture of wood fibre by the soda process
US1891337A (en) * 1930-01-09 1932-12-20 Du Pont Process of producing cellulose
US1926002A (en) * 1931-05-02 1933-09-05 Du Pont Manufacture of wood pulp
US2014374A (en) * 1932-02-26 1935-09-17 Du Pont Ammonia recovery
US2516827A (en) * 1945-07-09 1950-07-25 Ontario Paper Co Ltd Method of producing vanillin
US2596241A (en) * 1948-12-20 1952-05-13 Price Brothers & Company Ltd Treatment of the spent cooking liquor of an ammonia base sulfite pulping process
US2686120A (en) * 1952-01-14 1954-08-10 Ontario Paper Co Ltd Alkaline pulping of lignocellulose in the presence of oxygen to produce pulp, vanillin, and other oxidation products of lignin substance
FR1026068A (fr) * 1953-12-14 1953-04-23 Sterling Drug Inc Procédé et installation pour la destruction par oxydation des matières organiques contenues dans des eaux-vannes telles que les liqueurs sulfitiques résiduaires et pour la production d'énergie-thermique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1195237B (de) * 1960-04-11 1965-06-16 Ebauches Sa Uhr

Also Published As

Publication number Publication date
DE1037833B (de) 1958-08-28
US2752243A (en) 1956-06-26
GB785561A (en) 1957-10-30
FR1127660A (fr) 1956-12-21

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