SE8105886L - PROCEDURES FOR THE PREPARATION OF COOKING CHEMICALS FOR CELLULOSE PREPARATION - Google Patents

PROCEDURES FOR THE PREPARATION OF COOKING CHEMICALS FOR CELLULOSE PREPARATION

Info

Publication number
SE8105886L
SE8105886L SE8105886A SE8105886A SE8105886L SE 8105886 L SE8105886 L SE 8105886L SE 8105886 A SE8105886 A SE 8105886A SE 8105886 A SE8105886 A SE 8105886A SE 8105886 L SE8105886 L SE 8105886L
Authority
SE
Sweden
Prior art keywords
preparation
lime
slaked
procedures
cellulose
Prior art date
Application number
SE8105886A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE448102B (en
Inventor
Claes Svensson
Hans Theliander
Lennart Hagelqvist
Original Assignee
Claes Svensson
Hans Theliander
Lennart Hagelqvist
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 Claes Svensson, Hans Theliander, Lennart Hagelqvist filed Critical Claes Svensson
Priority to SE8105886A priority Critical patent/SE448102B/en
Priority to CA000413062A priority patent/CA1184006A/en
Priority to FI823417A priority patent/FI73754C/en
Priority to AT374982A priority patent/AT378381B/en
Priority to FR8217338A priority patent/FR2514383B1/en
Publication of SE8105886L publication Critical patent/SE8105886L/en
Publication of SE448102B publication Critical patent/SE448102B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/02—Oxides or hydroxides
    • 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

Abstract

A method of processing digesting chemicals for cellulose production. In this method unslaked lime from the lime kiln is slaked and the slaked lime thereafter mixed with green liquor (sodium carbonate) and causticized into white liquor. For the purpose of allowing bleeding-off and separation of non-desirable elememts such as e.g. Si, Al, Mg, Mn, Fe, and P obtained in the processes the unslaked lime is slaked in accordance with the teachings of the invention in a separate process step in an aqueous solution, whereupon the milk of lime (Ca(OH2) thus formed is separated from the aqueous solution and the causticizing thereafter effected. Fig. 2
SE8105886A 1981-10-13 1981-10-13 PROCEDURE FOR PREPARING COOKING CHEMICALS FOR CELLULOSAMAS PREPARATION SE448102B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE8105886A SE448102B (en) 1981-10-13 1981-10-13 PROCEDURE FOR PREPARING COOKING CHEMICALS FOR CELLULOSAMAS PREPARATION
CA000413062A CA1184006A (en) 1981-10-13 1982-10-07 Method of processing digesting chemicals for cellulose production
FI823417A FI73754C (en) 1981-10-13 1982-10-08 Process for the preparation of boiling chemicals for cellulose production.
AT374982A AT378381B (en) 1981-10-13 1982-10-11 METHOD FOR PROCESSING DIGESTIVE CHEMICALS IN CELLULOSE PRODUCTION
FR8217338A FR2514383B1 (en) 1981-10-13 1982-10-12 PROCESS FOR THE TREATMENT AND PROCESSING OF CHEMICALS FOR THE PRODUCTION OF CELLULOSE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8105886A SE448102B (en) 1981-10-13 1981-10-13 PROCEDURE FOR PREPARING COOKING CHEMICALS FOR CELLULOSAMAS PREPARATION

Publications (2)

Publication Number Publication Date
SE8105886L true SE8105886L (en) 1983-04-14
SE448102B SE448102B (en) 1987-01-19

Family

ID=20344708

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8105886A SE448102B (en) 1981-10-13 1981-10-13 PROCEDURE FOR PREPARING COOKING CHEMICALS FOR CELLULOSAMAS PREPARATION

Country Status (5)

Country Link
AT (1) AT378381B (en)
CA (1) CA1184006A (en)
FI (1) FI73754C (en)
FR (1) FR2514383B1 (en)
SE (1) SE448102B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997003245A1 (en) * 1995-07-11 1997-01-30 Ahlstrom Machinery Oy Method of separating impurities from lime and lime sludge and a method of causticizing green liquor containing impurities, such as silicon, in two stages

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI49331C (en) * 1973-06-27 1975-05-12 Ahlstroem Oy The method of removing paint from the pulp mill effluent and the device for applying the method.
US3120464A (en) * 1960-11-29 1964-02-04 Nat Council For Stream Improve Decolorizing kraft waste liquors
GB1010296A (en) * 1961-08-25 1965-11-17 Eimco Corp Improvements in or relating to aqueous caustic soda production
US3635670A (en) * 1969-06-11 1972-01-18 Allied Chem Recovery of dilute caustic soda solutions from spent liquors containing hemicellulose
FI53728C (en) * 1974-03-12 1978-07-10 Ahlstroem Oy FOERFARANDE FOER AOTERVINNING AV KEMIKALIER UR AVLUTAR FRAON SULFATCELLULOSAKOK OCH AVFALLSVATTEN FRAON BLEKNING

Also Published As

Publication number Publication date
AT378381B (en) 1985-07-25
ATA374982A (en) 1984-12-15
FI73754B (en) 1987-07-31
FI73754C (en) 1987-11-09
FI823417A0 (en) 1982-10-08
SE448102B (en) 1987-01-19
CA1184006A (en) 1985-03-19
FR2514383B1 (en) 1986-08-22
FI823417L (en) 1983-04-14
FR2514383A1 (en) 1983-04-15

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