ZA849901B - Method of improving the purity of alkali-metal hydroxides - Google Patents

Method of improving the purity of alkali-metal hydroxides

Info

Publication number
ZA849901B
ZA849901B ZA849901A ZA849901A ZA849901B ZA 849901 B ZA849901 B ZA 849901B ZA 849901 A ZA849901 A ZA 849901A ZA 849901 A ZA849901 A ZA 849901A ZA 849901 B ZA849901 B ZA 849901B
Authority
ZA
South Africa
Prior art keywords
purity
alkali
improving
metal hydroxides
hydroxides
Prior art date
Application number
ZA849901A
Inventor
Heiko Wunder
John David Gillett
Jack Scukovic
Alan John Bennett
Original Assignee
North Broken Hill Ltd
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 North Broken Hill Ltd filed Critical North Broken Hill Ltd
Publication of ZA849901B publication Critical patent/ZA849901B/en

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
    • D21C11/12—Combustion of pulp liquors
    • D21C11/122—Treatment, e.g. dissolution, of the smelt
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • C01D1/28—Purification; Separation
    • C01D1/32—Purification; Separation by absorption or precipitation
    • 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
    • D21C11/0078—Treatment of green or white liquors with other means or other compounds than gases, e.g. in order to separate solid compounds such as sodium chloride and carbonate from these liquors; Further treatment of these compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
ZA849901A 1983-12-23 1984-12-19 Method of improving the purity of alkali-metal hydroxides ZA849901B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPG300983 1983-12-23

Publications (1)

Publication Number Publication Date
ZA849901B true ZA849901B (en) 1985-08-28

Family

ID=3770460

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA849901A ZA849901B (en) 1983-12-23 1984-12-19 Method of improving the purity of alkali-metal hydroxides

Country Status (8)

Country Link
EP (1) EP0165945A4 (en)
JP (1) JPS61500783A (en)
AU (1) AU3785285A (en)
BR (1) BR8407243A (en)
FI (1) FI853215L (en)
IT (1) IT1177487B (en)
WO (1) WO1985002834A1 (en)
ZA (1) ZA849901B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0784716B2 (en) * 1985-10-29 1995-09-13 三菱重工業株式会社 Method for recovering caustic soda from alkaline pulp waste liquor
EP4153811A4 (en) * 2020-05-22 2024-06-19 Suzano S.A. Methods of treating a kraft process recovery cicle to reduce metal levels at the kraft process

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB335371A (en) * 1929-07-15 1930-09-25 Erik Ludvig Rinman Method of alkalizing the waste liquors from the soda or sulphate pulp manufacture for the purpose of dry distilling the same
GB381697A (en) * 1931-09-19 1932-10-13 Erik Ludvig Rinman Method of relieving alkaline waste liquors from the soda or sulphate pulp manufacture, of silica
NL71715C (en) * 1948-12-20
NL232042A (en) * 1958-01-29
AU450309B2 (en) * 1972-11-13 1974-07-04 Oji Paper Co. Ltd. Method for directly converting sodium carbonate into caustic soda and application of said method to pulp and paper industry
US4224289A (en) * 1978-04-20 1980-09-23 Australian Paper Manufacturers Limited Alkali regeneration process
CA1188485A (en) * 1982-03-25 1985-06-11 Kien L. Nguyen Alkali regeneration process

Also Published As

Publication number Publication date
AU3785285A (en) 1985-07-12
JPS61500783A (en) 1986-04-24
IT8424161A0 (en) 1984-12-21
EP0165945A1 (en) 1986-01-02
BR8407243A (en) 1985-11-26
EP0165945A4 (en) 1986-07-17
IT1177487B (en) 1987-08-26
WO1985002834A1 (en) 1985-07-04
FI853215A0 (en) 1985-08-21
FI853215L (en) 1985-08-21

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