SE8104134L - SETTLE TO TREAT BLACK - Google Patents

SETTLE TO TREAT BLACK

Info

Publication number
SE8104134L
SE8104134L SE8104134A SE8104134A SE8104134L SE 8104134 L SE8104134 L SE 8104134L SE 8104134 A SE8104134 A SE 8104134A SE 8104134 A SE8104134 A SE 8104134A SE 8104134 L SE8104134 L SE 8104134L
Authority
SE
Sweden
Prior art keywords
black liquor
combustible
less
solids
liquor solids
Prior art date
Application number
SE8104134A
Other languages
Swedish (sv)
Inventor
K M Barclay
R L Gay
S J Yosim
Original Assignee
Rockwell International 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 Rockwell International Corp filed Critical Rockwell International Corp
Publication of SE8104134L publication Critical patent/SE8104134L/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
    • D21C11/125—Decomposition of the pulp liquors in reducing atmosphere or in the absence of oxidants, i.e. gasification or pyrolysis

Landscapes

  • Paper (AREA)

Abstract

A method of treating black liquor solids in which the dried solids are treated in a single reaction zone in a bed of molten salt which comprises a major amount of sodium carbonate and a minor amount of sodium sulfide. A source of oxygen is introduced into the molten salt in a stoichiometric amount less than that required for complete combustion of the combustible constituents of the black liquor solids to provide a combustible off-gas which is withdrawn from the upper portion of the reaction zone and to produce a melt in a lower portion of the zone containing less than 1% of the sulfur constituents as sulfate and less than 1% of the initial combustible carbon content of the black liquor solids.
SE8104134A 1980-07-11 1981-07-02 SETTLE TO TREAT BLACK SE8104134L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16750280A 1980-07-11 1980-07-11

Publications (1)

Publication Number Publication Date
SE8104134L true SE8104134L (en) 1982-01-12

Family

ID=22607622

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8104134A SE8104134L (en) 1980-07-11 1981-07-02 SETTLE TO TREAT BLACK

Country Status (5)

Country Link
JP (1) JPS5747991A (en)
BR (1) BR8104337A (en)
CA (1) CA1160403A (en)
FI (1) FI812191L (en)
SE (1) SE8104134L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE462106B (en) * 1986-11-28 1990-05-07 Alf Ove Andersson SETTING OUT EXTERNAL ENERGY AND CHEMICALS FROM PILLOW PREPARATION
CN102877350B (en) * 2012-09-29 2014-10-15 广西大学 Black liquor treatment method by lignin extraction and alkali recovery

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS492901A (en) * 1972-03-30 1974-01-11

Also Published As

Publication number Publication date
BR8104337A (en) 1982-03-23
JPS5747991A (en) 1982-03-19
JPH0253552B2 (en) 1990-11-19
CA1160403A (en) 1984-01-17
FI812191L (en) 1982-01-12

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