CH276426A - Process for making pulp by boiling wood with alkali sulfite or alkali bisulfite solutions. - Google Patents

Process for making pulp by boiling wood with alkali sulfite or alkali bisulfite solutions.

Info

Publication number
CH276426A
CH276426A CH276426DA CH276426A CH 276426 A CH276426 A CH 276426A CH 276426D A CH276426D A CH 276426DA CH 276426 A CH276426 A CH 276426A
Authority
CH
Switzerland
Prior art keywords
alkali
making pulp
sulfite
bisulfite solutions
boiling wood
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiebolag Stora Kop Bergslags
Original Assignee
Stora Kopparbergs Bergslags 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 Stora Kopparbergs Bergslags Ab filed Critical Stora Kopparbergs Bergslags Ab
Publication of CH276426A publication Critical patent/CH276426A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D7/00—Carbonates of sodium, potassium or alkali metals in general
    • 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
    • D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
    • D21C11/0071—Treatment of green or white liquors with gases, e.g. with carbon dioxide for carbonation; Expulsion of gaseous compounds, e.g. hydrogen sulfide, from these liquors by this treatment (stripping); Optional separation of solid compounds formed in the liquors by this treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
CH276426D 1947-07-24 1948-07-07 Process for making pulp by boiling wood with alkali sulfite or alkali bisulfite solutions. CH276426A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE276426X 1947-07-24

Publications (1)

Publication Number Publication Date
CH276426A true CH276426A (en) 1951-07-15

Family

ID=20306897

Family Applications (1)

Application Number Title Priority Date Filing Date
CH276426D CH276426A (en) 1947-07-24 1948-07-07 Process for making pulp by boiling wood with alkali sulfite or alkali bisulfite solutions.

Country Status (4)

Country Link
BE (1) BE484040A (en)
CH (1) CH276426A (en)
FR (1) FR1078904A (en)
GB (1) GB656283A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1061613B (en) * 1955-07-14 1959-07-16 Stora Kopparbergs Bergslags Ab Process for the regeneration of alkali sulphite or alkali bisulphite pulp waste liquors
DE1092760B (en) * 1958-05-20 1960-11-10 Metallgesellschaft Ag Process for the recovery of alkali and sulfur and optionally carbonic acid from sodium sulfide and optionally carbonate or bicarbonate solutions, in particular from green liquors in the pulp industry
DE1119645B (en) * 1957-01-31 1961-12-14 Escher Wyss Gmbh Process for removing silicic acid from alkaline waste liquors in the pulp industry
DE1131080B (en) * 1960-02-19 1962-06-07 Metallgesellschaft Ag Process for the recovery of sodium and sulfur compounds from sulphite pulp waste liquors by evaporation and incineration of the waste liquors

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1061613B (en) * 1955-07-14 1959-07-16 Stora Kopparbergs Bergslags Ab Process for the regeneration of alkali sulphite or alkali bisulphite pulp waste liquors
DE1119645B (en) * 1957-01-31 1961-12-14 Escher Wyss Gmbh Process for removing silicic acid from alkaline waste liquors in the pulp industry
DE1092760B (en) * 1958-05-20 1960-11-10 Metallgesellschaft Ag Process for the recovery of alkali and sulfur and optionally carbonic acid from sodium sulfide and optionally carbonate or bicarbonate solutions, in particular from green liquors in the pulp industry
DE1131080B (en) * 1960-02-19 1962-06-07 Metallgesellschaft Ag Process for the recovery of sodium and sulfur compounds from sulphite pulp waste liquors by evaporation and incineration of the waste liquors

Also Published As

Publication number Publication date
BE484040A (en)
FR1078904A (en) 1954-11-24
GB656283A (en) 1951-08-15

Similar Documents

Publication Publication Date Title
CH268528A (en) Process for the preparation of dialkyl-substituted dihalosilanes.
CH269799A (en) Process for the production of artificial structures such as fibers, threads, tapes, films, casings, etc.
CH278283A (en) Process for the preparation of dialkyl-substituted dihalosilanes.
CH311195A (en) Process for the production of hydroperoxides.
CH276426A (en) Process for making pulp by boiling wood with alkali sulfite or alkali bisulfite solutions.
CH287881A (en) Process for the production of polystyrene by emulsion polymerization.
CH273914A (en) Process for the production of viscose threads.
CH245077A (en) Process for the production of molded articles with the aid of sulphite cellulose waste liquor.
CH304350A (en) Process for the production of cellulose fibers.
CH271087A (en) Process for increasing the wetting ability of mercerising liquors.
CH265513A (en) Process for the preparation of acidic solutions of ammonium persulfate.
CH305692A (en) Process for the production of detergent mixtures.
CH273389A (en) Process for the production of sulfamic acid.
CH275797A (en) Process for the production of nitropolystyrene.
CH280493A (en) Process for making paper.
CH291830A (en) Process for the pretreatment of wood chips for the production of pulp.
CH279636A (en) Process for making soap.
CH291829A (en) Process for the pretreatment of wood for the production of pulp.
CH265208A (en) Process for the production of colored paper.
CH264601A (en) Process for the preparation of hydroxylamine sulphate solutions.
CH286515A (en) Process for the production of colored cellulosic material, in particular colored paper.
CH258306A (en) Process for the production of materials by impregnating fibrous webs, in particular paper.
CH255633A (en) Process for the deacidification of water.
CH278892A (en) Process for the production of threads by wet spinning.
DK75258C (en) Process for the production of double-sided toothed wooden connection boards.