BR7104940D0 - Processo para o tratamento de solucao exaurida contendo na25 e na2co3 de um processo de polpacao com polissulfeto - Google Patents

Processo para o tratamento de solucao exaurida contendo na25 e na2co3 de um processo de polpacao com polissulfeto

Info

Publication number
BR7104940D0
BR7104940D0 BR4940/71A BR494071A BR7104940D0 BR 7104940 D0 BR7104940 D0 BR 7104940D0 BR 4940/71 A BR4940/71 A BR 4940/71A BR 494071 A BR494071 A BR 494071A BR 7104940 D0 BR7104940 D0 BR 7104940D0
Authority
BR
Brazil
Prior art keywords
pollation
polisulfect
na2co3
treatment
solution containing
Prior art date
Application number
BR4940/71A
Other languages
English (en)
Inventor
C Fogman
H Tsao
Original Assignee
Combustion Eng
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 Combustion Eng filed Critical Combustion Eng
Publication of BR7104940D0 publication Critical patent/BR7104940D0/pt

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
    • D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S423/00—Chemistry of inorganic compounds
    • Y10S423/03—Papermaking liquor
BR4940/71A 1970-08-03 1971-08-02 Processo para o tratamento de solucao exaurida contendo na25 e na2co3 de um processo de polpacao com polissulfeto BR7104940D0 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6056870A 1970-08-03 1970-08-03

Publications (1)

Publication Number Publication Date
BR7104940D0 true BR7104940D0 (pt) 1973-03-29

Family

ID=22030329

Family Applications (1)

Application Number Title Priority Date Filing Date
BR4940/71A BR7104940D0 (pt) 1970-08-03 1971-08-02 Processo para o tratamento de solucao exaurida contendo na25 e na2co3 de um processo de polpacao com polissulfeto

Country Status (9)

Country Link
US (1) US3650889A (pt)
JP (1) JPS5013842B1 (pt)
AU (1) AU455125B2 (pt)
BR (1) BR7104940D0 (pt)
CA (1) CA948376A (pt)
ES (1) ES393777A1 (pt)
GB (1) GB1348548A (pt)
SE (1) SE381898B (pt)
ZA (1) ZA715105B (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873413A (en) * 1973-10-15 1975-03-25 Owens Illinois Inc Method of improving smelt properties and reducing dissolving tank explosions during pulping of wood with sodium based liquors
US3959068A (en) * 1974-10-24 1976-05-25 The Babcock & Wilcox Company Process and apparatus for recovery of sulfur from a polysulfide pulping operation
JPS5222815U (pt) * 1975-08-07 1977-02-17
US4239589A (en) * 1978-10-02 1980-12-16 Air Products And Chemicals, Inc. Process for oxidation of black liquor
US5597445A (en) * 1993-11-29 1997-01-28 International Paper Company Method for recovering sodium from a spent cooking liquor
US5972165A (en) * 1997-01-17 1999-10-26 The Boc Group, Inc. Method of producing oxidized white liquor using dregs containing carbon particles
WO2015094436A1 (en) 2013-12-20 2015-06-25 Shell Oil Company Methods and systems for processing a reaction product mixture of cellulosic biomass material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068065A (en) * 1956-08-24 1962-12-11 Humphreys & Glasgow Ltd Method of removing hydrogen sulphide from gases
US3077488A (en) * 1959-03-12 1963-02-12 Robert M Mercier Method of oxidizing ferrous salts into ferric salts in the presence of a gas containing free oxygen
US3525666A (en) * 1964-08-31 1970-08-25 Mo Och Domsjoe Ab Process for preparing kraft pulping liquor from black liquor including separate carbonation with combustion gases and evaporation steps

Also Published As

Publication number Publication date
AU455125B2 (en) 1974-11-14
ZA715105B (en) 1972-04-26
JPS5013842B1 (pt) 1975-05-23
AU3188271A (en) 1973-02-08
SE381898B (sv) 1975-12-22
US3650889A (en) 1972-03-21
CA948376A (en) 1974-06-04
GB1348548A (en) 1974-03-20
ES393777A1 (es) 1973-09-01

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