FI95608B - Förfarande för framställning av koklutar genom kristallisering av grönlut - Google Patents
Förfarande för framställning av koklutar genom kristallisering av grönlutInfo
- Publication number
- FI95608B FI95608B FI942902A FI942902A FI95608B FI 95608 B FI95608 B FI 95608B FI 942902 A FI942902 A FI 942902A FI 942902 A FI942902 A FI 942902A FI 95608 B FI95608 B FI 95608B
- Authority
- FI
- Finland
- Prior art keywords
- liquor
- crystallization
- green
- preparing coke
- preparing
- Prior art date
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
- D21C11/0064—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
-
- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI942902A FI95608B (sv) | 1994-06-17 | 1994-06-17 | Förfarande för framställning av koklutar genom kristallisering av grönlut |
EP95109226A EP0687766A1 (en) | 1994-06-17 | 1995-06-14 | Method for the manufacture of cooking liquors by green liquor crystallization |
US08/490,734 US5607549A (en) | 1994-06-17 | 1995-06-15 | Method for the manufacture of cooking liquors of different sulphidity by green liquor crystallization |
CA002152016A CA2152016C (en) | 1994-06-17 | 1995-06-16 | Method for the manufacture of cooking liquors by green liquor crystallization |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI942902A FI95608B (sv) | 1994-06-17 | 1994-06-17 | Förfarande för framställning av koklutar genom kristallisering av grönlut |
Publications (2)
Publication Number | Publication Date |
---|---|
FI942902A0 FI942902A0 (sv) | 1994-06-17 |
FI95608B true FI95608B (sv) | 1995-11-15 |
Family
ID=8540946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI942902A FI95608B (sv) | 1994-06-17 | 1994-06-17 | Förfarande för framställning av koklutar genom kristallisering av grönlut |
Country Status (4)
Country | Link |
---|---|
US (1) | US5607549A (sv) |
EP (1) | EP0687766A1 (sv) |
CA (1) | CA2152016C (sv) |
FI (1) | FI95608B (sv) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR9609622A (pt) * | 1995-07-11 | 1999-04-06 | Ahlstrom Machinery Oy | Processo para separar impurezas em relação a cal e lama de cal e um processo de causticação de líquido que contém impurezas tais como silício em dois estágios |
FI105929B (sv) * | 1996-05-30 | 2000-10-31 | Sunds Defibrator Pori Oy | Förbättrat förfarande för satsvis framställning av sulfatcellulosa |
SE9803384L (sv) | 1998-03-02 | 1999-09-03 | Kemira Kemi Ab | Förfarande för behandling av processvatten |
US6348128B1 (en) * | 1998-06-01 | 2002-02-19 | U.S. Borax Inc. | Method of increasing the causticizing efficiency of alkaline pulping liquor by borate addition |
US6294048B1 (en) | 1998-06-01 | 2001-09-25 | U.S. Borax Inc. | Method for regenerating sodium hydroxide by partial autocausticizing sodium carbonate containing smelt by reaction with a borate |
US6123806A (en) * | 1998-07-16 | 2000-09-26 | Champion International Corporation | Process for kraft chemical recovery |
US20090288790A1 (en) * | 2008-05-22 | 2009-11-26 | Flanagan Peter J | Process and apparatus for treating green liquor |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA792645A (en) * | 1968-08-20 | Oy Tampella Ab | Method of crystallizing alkali as alkali monohydrate crystals | |
US1906886A (en) * | 1927-11-23 | 1933-05-02 | Brown Co | Process of recovering and utilizing the valuable compounds in spent cooking liquors |
US2711430A (en) * | 1950-06-27 | 1955-06-21 | Svenska Cellulosaforeningens C | Method of improving the yield of methyl sulfide obtained by heating waste liquors fro cellulose manufacture by adding inorganic sulfides |
US3762989A (en) * | 1971-07-30 | 1973-10-02 | St Regis Paper Co | Pyrolysis of spent pulping liquors |
US4131508A (en) * | 1973-03-12 | 1978-12-26 | Kamyr Inc. | Recovery system for oxygen bleaching of pulp |
US3909344A (en) * | 1973-12-03 | 1975-09-30 | Erco Envirotech Ltd | Removal of sodium chloride from pulp mill operations |
FI53728C (fi) * | 1974-03-12 | 1978-07-10 | Ahlstroem Oy | Foerfarande foer aotervinning av kemikalier ur avlutar fraon sulfatcellulosakok och avfallsvatten fraon blekning |
US3966874A (en) * | 1975-05-14 | 1976-06-29 | Reynolds Metals Company | Extraction of alumina from bauxite ores |
ZA762995B (en) * | 1976-05-19 | 1977-07-27 | Sappi Ltd | Improvements relating to recovery of chemicals |
CA1103412A (en) * | 1978-01-09 | 1981-06-23 | Willard A. Fuller | Kraft mill recycle process |
SE462106B (sv) * | 1986-11-28 | 1990-05-07 | Alf Ove Andersson | Saett att utvinna energi och kemikalier ur avlut fraan massaberedning |
US4953607A (en) * | 1989-02-17 | 1990-09-04 | A. Ahlstrom | Multistage evaporating system |
SE500748C2 (sv) * | 1992-10-12 | 1994-08-22 | Bertil Pettersson | Förfarande vid kemikalieåtervinning i en sulfatmassafabrik för framställning av dels en vitlut med hög sulfiditet och dels en sulfidfattig vitlut |
-
1994
- 1994-06-17 FI FI942902A patent/FI95608B/sv active
-
1995
- 1995-06-14 EP EP95109226A patent/EP0687766A1/en not_active Withdrawn
- 1995-06-15 US US08/490,734 patent/US5607549A/en not_active Expired - Fee Related
- 1995-06-16 CA CA002152016A patent/CA2152016C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2152016C (en) | 1999-05-18 |
EP0687766A1 (en) | 1995-12-20 |
CA2152016A1 (en) | 1995-12-18 |
FI942902A0 (sv) | 1994-06-17 |
US5607549A (en) | 1997-03-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application | ||
GB | Transfer or assigment of application |
Owner name: AHLSTROM MACHINERY OY |