FI990042A0 - A method for reducing the silicon content of green liquor - Google Patents

A method for reducing the silicon content of green liquor

Info

Publication number
FI990042A0
FI990042A0 FI990042A FI990042A FI990042A0 FI 990042 A0 FI990042 A0 FI 990042A0 FI 990042 A FI990042 A FI 990042A FI 990042 A FI990042 A FI 990042A FI 990042 A0 FI990042 A0 FI 990042A0
Authority
FI
Finland
Prior art keywords
reducing
silicon content
green liquor
liquor
green
Prior art date
Application number
FI990042A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI990042A (en
FI107743B (en
Inventor
Juhani Vehmaan-Kreula
Original Assignee
Ahlstrom Machinery Oy
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 Ahlstrom Machinery Oy filed Critical Ahlstrom Machinery Oy
Priority to FI990042A priority Critical patent/FI107743B/en
Publication of FI990042A0 publication Critical patent/FI990042A0/en
Priority to CNB008025789A priority patent/CN1143024C/en
Priority to IDW00200101719A priority patent/ID29518A/en
Priority to PCT/FI2000/000009 priority patent/WO2000042251A1/en
Publication of FI990042A publication Critical patent/FI990042A/en
Application granted granted Critical
Publication of FI107743B publication Critical patent/FI107743B/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
    • D21C11/0085—Introduction of auxiliary substances into the regenerating system in order to improve the performance of certain steps of the latter, the presence of these substances being confined to the regeneration cycle
    • D21C11/0092—Substances modifying the evaporation, combustion, or thermal decomposition processes of black liquor
    • 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
    • D21C11/10—Concentrating spent liquor by evaporation
    • D21C11/106—Prevention of incrustations on heating surfaces during the concentration, e.g. by elimination of the scale-forming substances contained in the liquors
    • 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
FI990042A 1999-01-12 1999-01-12 Procedure for reducing the silica content of the green liquor FI107743B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI990042A FI107743B (en) 1999-01-12 1999-01-12 Procedure for reducing the silica content of the green liquor
CNB008025789A CN1143024C (en) 1999-01-12 2000-01-07 Method of reducing the silicon content of green liquor
IDW00200101719A ID29518A (en) 1999-01-12 2000-01-07 METHOD FOR REDUCING SILICON CONTENT FROM GREEN LIQUID
PCT/FI2000/000009 WO2000042251A1 (en) 1999-01-12 2000-01-07 Method of reducing the silicon content of green liquor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI990042 1999-01-12
FI990042A FI107743B (en) 1999-01-12 1999-01-12 Procedure for reducing the silica content of the green liquor

Publications (3)

Publication Number Publication Date
FI990042A0 true FI990042A0 (en) 1999-01-12
FI990042A FI990042A (en) 2000-07-13
FI107743B FI107743B (en) 2001-09-28

Family

ID=8553314

Family Applications (1)

Application Number Title Priority Date Filing Date
FI990042A FI107743B (en) 1999-01-12 1999-01-12 Procedure for reducing the silica content of the green liquor

Country Status (4)

Country Link
CN (1) CN1143024C (en)
FI (1) FI107743B (en)
ID (1) ID29518A (en)
WO (1) WO2000042251A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102041703B (en) * 2010-12-02 2012-05-23 陕西科技大学 Process for removing silicon in green liquor of papermaking alkali recovery section by seeding
CN102094346A (en) * 2010-12-02 2011-06-15 陕西科技大学 Acid method silica removal process for green liquor in alkali recovery section of papermaking
CN102619123A (en) * 2012-03-16 2012-08-01 陕西科技大学 Method for removing silicon from green liquor through synergism of calcium oxide, carbon dioxide and aluminum-containing compound
CN103469664B (en) * 2013-08-26 2015-09-16 陕西科技大学 A kind of alkali collection workshop section green liquor flocculation silicon removing method
CN115652676B (en) * 2022-11-17 2023-09-26 陕西科技大学 Green liquid silicon removal process for pre-stage silicon removal process

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4331507A (en) * 1979-12-10 1982-05-25 Dorr-Oliver Incorporated Desilication in alkaline pulp processes
US4347102A (en) * 1981-04-02 1982-08-31 Combustion Engineering, Inc. Elimination of potassium compounds from sodium-based pulped cycles
JPS6045692A (en) * 1983-08-18 1985-03-12 石川島播磨重工業株式会社 Removal of silica from pulp black liquor and green liquor
DK154659C (en) * 1986-11-03 1989-05-08 Fredericia Cellulosefabrik Akt PROCEDURE FOR REDUCING SILICON CONTENT IN BLACK CELLULOSE MANUFACTURING
SE9401663L (en) * 1994-05-13 1995-06-12 Kvaerner Pulping Tech Procedure for precipitating magnesium with aluminum during green clearing

Also Published As

Publication number Publication date
WO2000042251A1 (en) 2000-07-20
CN1335905A (en) 2002-02-13
ID29518A (en) 2001-09-06
FI990042A (en) 2000-07-13
FI107743B (en) 2001-09-28
CN1143024C (en) 2004-03-24

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