FI951739A0 - Sätt att fördela grönlutens innehåll av sulfid för framställning av vitlutar med hög respektive låg sulfiditet - Google Patents
Sätt att fördela grönlutens innehåll av sulfid för framställning av vitlutar med hög respektive låg sulfiditetInfo
- Publication number
- FI951739A0 FI951739A0 FI951739A FI951739A FI951739A0 FI 951739 A0 FI951739 A0 FI 951739A0 FI 951739 A FI951739 A FI 951739A FI 951739 A FI951739 A FI 951739A FI 951739 A0 FI951739 A0 FI 951739A0
- Authority
- FI
- Finland
- Prior art keywords
- sulphide
- dividing
- produce high
- green liquor
- low
- 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
- D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye
-
- 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
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9203005A SE500748C2 (sv) | 1992-10-12 | 1992-10-12 | Förfarande vid kemikalieåtervinning i en sulfatmassafabrik för framställning av dels en vitlut med hög sulfiditet och dels en sulfidfattig vitlut |
SE9203005 | 1992-10-12 | ||
SE9300782 | 1993-03-10 | ||
PCT/SE1993/000782 WO1994009204A1 (en) | 1992-10-12 | 1993-09-29 | Process for dividing the sulphide content of the green liquor for the production of white liquors having high and low sulphidity respectively |
Publications (3)
Publication Number | Publication Date |
---|---|
FI951739A0 true FI951739A0 (sv) | 1995-04-12 |
FI951739A FI951739A (sv) | 1995-04-12 |
FI118349B FI118349B (sv) | 2007-10-15 |
Family
ID=20387466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI951739A FI118349B (sv) | 1992-10-12 | 1995-04-12 | Sätt att fördela grönlutens innehåll av sulfid för framställning av vitlutar med hög respektive låg sulfiditet |
Country Status (11)
Country | Link |
---|---|
US (1) | US5607548A (sv) |
EP (1) | EP0663971A1 (sv) |
JP (1) | JPH08502102A (sv) |
AU (1) | AU674035B2 (sv) |
BR (1) | BR9307224A (sv) |
CA (1) | CA2146655A1 (sv) |
FI (1) | FI118349B (sv) |
NO (1) | NO951396L (sv) |
RU (1) | RU95109841A (sv) |
SE (1) | SE500748C2 (sv) |
WO (1) | WO1994009204A1 (sv) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI95608B (sv) * | 1994-06-17 | 1995-11-15 | Ahlstroem Oy | Förfarande för framställning av koklutar genom kristallisering av grönlut |
SE507033C2 (sv) * | 1995-07-04 | 1998-03-16 | Kvaerner Pulping Tech | Framställning av polysulfid genom oxidation av sulfid i grönlut |
CN1108412C (zh) * | 1995-07-11 | 2003-05-14 | 安德里兹公司 | 从石灰和白泥中分离杂质的方法以及两步法苛化含有杂质如硅的绿液的方法 |
FI105929B (sv) * | 1996-05-30 | 2000-10-31 | Sunds Defibrator Pori Oy | Förbättrat förfarande för satsvis framställning av sulfatcellulosa |
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 |
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 |
SE524247C2 (sv) * | 2002-11-25 | 2004-07-13 | Kvaerner Pulping Tech | Metod vid produktion av grönlut |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1906886A (en) * | 1927-11-23 | 1933-05-02 | Brown Co | Process of recovering and utilizing the valuable compounds in spent cooking liquors |
US3617434A (en) * | 1967-05-31 | 1971-11-02 | Mitsubishi Heavy Ind Ltd | Regeneration of cooking chemicals from spent alkaline cooking liquor |
CA923256A (en) * | 1969-12-30 | 1973-03-27 | H. Rapson William | Chemical recovery process |
FI53728C (fi) * | 1974-03-12 | 1978-07-10 | Ahlstroem Oy | Foerfarande foer aotervinning av kemikalier ur avlutar fraon sulfatcellulosakok och avfallsvatten fraon blekning |
SE456254B (sv) * | 1987-02-12 | 1988-09-19 | Korsnes Ab | Sett att rena gronlut i sulfatmassafabrikers kemikalieatervinning |
-
1992
- 1992-10-12 SE SE9203005A patent/SE500748C2/sv not_active IP Right Cessation
-
1993
- 1993-09-29 US US08/397,253 patent/US5607548A/en not_active Expired - Lifetime
- 1993-09-29 RU RU95109841/12A patent/RU95109841A/ru unknown
- 1993-09-29 JP JP6509892A patent/JPH08502102A/ja active Pending
- 1993-09-29 CA CA002146655A patent/CA2146655A1/en not_active Abandoned
- 1993-09-29 BR BR9307224A patent/BR9307224A/pt not_active Application Discontinuation
- 1993-09-29 AU AU52880/93A patent/AU674035B2/en not_active Expired - Fee Related
- 1993-09-29 WO PCT/SE1993/000782 patent/WO1994009204A1/en not_active Application Discontinuation
- 1993-09-29 EP EP93923077A patent/EP0663971A1/en not_active Ceased
-
1995
- 1995-04-10 NO NO951396A patent/NO951396L/no unknown
- 1995-04-12 FI FI951739A patent/FI118349B/sv not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO1994009204A1 (en) | 1994-04-28 |
JPH08502102A (ja) | 1996-03-05 |
NO951396D0 (no) | 1995-04-10 |
CA2146655A1 (en) | 1994-04-28 |
AU5288093A (en) | 1994-05-09 |
RU95109841A (ru) | 1997-04-10 |
BR9307224A (pt) | 1999-05-25 |
EP0663971A1 (en) | 1995-07-26 |
US5607548A (en) | 1997-03-04 |
FI118349B (sv) | 2007-10-15 |
SE9203005D0 (sv) | 1992-10-12 |
SE9203005L (sv) | 1994-04-13 |
NO951396L (no) | 1995-04-10 |
SE500748C2 (sv) | 1994-08-22 |
AU674035B2 (en) | 1996-12-05 |
FI951739A (sv) | 1995-04-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Transfer of assignment of patent |
Owner name: KVAERNER PULPING AB Free format text: KVAERNER PULPING AB |
|
PC | Transfer of assignment of patent |
Owner name: METSO FIBER KARLSTAD AB Free format text: METSO FIBER KARLSTAD AB |
|
FG | Patent granted |
Ref document number: 118349 Country of ref document: FI |
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MA | Patent expired |