FI934632A - Menetelmä valkolipeässä olevan natriumhydroksidin erottamiseksi - Google Patents
Menetelmä valkolipeässä olevan natriumhydroksidin erottamiseksi Download PDFInfo
- Publication number
- FI934632A FI934632A FI934632A FI934632A FI934632A FI 934632 A FI934632 A FI 934632A FI 934632 A FI934632 A FI 934632A FI 934632 A FI934632 A FI 934632A FI 934632 A FI934632 A FI 934632A
- Authority
- FI
- Finland
- Prior art keywords
- white liquor
- sodium hydroxide
- separating sodium
- separated
- pulp mill
- 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
Landscapes
- Removal Of Specific Substances (AREA)
- Paper (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI934632A FI98537C (fi) | 1993-10-20 | 1993-10-20 | Menetelmä valkolipeässä olevan natriumhydroksidin erottamiseksi |
US08/325,655 US5510035A (en) | 1993-01-20 | 1994-10-18 | Method of separating sodium hydroxide from white liquor |
CA002118464A CA2118464C (en) | 1993-10-20 | 1994-10-19 | Method of separating sodium hydroxide from white liquor |
ES94850182T ES2100661T3 (es) | 1993-10-20 | 1994-10-20 | Procedimiento de separacion de hidroxido de sodio de la lejia blanca. |
AT94850182T ATE150814T1 (de) | 1993-10-20 | 1994-10-20 | Verfahren zum trennen von natriumhydroxyd aus weisslauge |
DE69402289T DE69402289T2 (de) | 1993-10-20 | 1994-10-20 | Verfahren zum Trennen von Natriumhydroxyd aus Weisslauge |
EP94850182A EP0654558B1 (en) | 1993-10-20 | 1994-10-20 | Method of separating sodium hydroxide from white liquor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI934632A FI98537C (fi) | 1993-10-20 | 1993-10-20 | Menetelmä valkolipeässä olevan natriumhydroksidin erottamiseksi |
FI934632 | 1993-10-20 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI934632A0 FI934632A0 (fi) | 1993-10-20 |
FI934632A true FI934632A (fi) | 1995-04-21 |
FI98537B FI98537B (fi) | 1997-03-27 |
FI98537C FI98537C (fi) | 1997-07-10 |
Family
ID=8538808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI934632A FI98537C (fi) | 1993-01-20 | 1993-10-20 | Menetelmä valkolipeässä olevan natriumhydroksidin erottamiseksi |
Country Status (7)
Country | Link |
---|---|
US (1) | US5510035A (fi) |
EP (1) | EP0654558B1 (fi) |
AT (1) | ATE150814T1 (fi) |
CA (1) | CA2118464C (fi) |
DE (1) | DE69402289T2 (fi) |
ES (1) | ES2100661T3 (fi) |
FI (1) | FI98537C (fi) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI98538C (fi) * | 1993-10-20 | 1997-07-10 | Enso Gutzeit Oy | Menetelmä natriumhydroksidin valmistamiseksi valkolipeästä |
US5942084A (en) * | 1997-01-24 | 1999-08-24 | Pulp And Paper Research Institute Of Canada | Process for the separation of sulphides from pulping liquors using amphoteric resins |
FI122626B (fi) * | 2006-03-31 | 2012-04-30 | Laennen Tutkimus Western Res Inc Oy | Kemiallisen massan valkaisumenetelmä |
WO2014086049A1 (zh) * | 2012-12-09 | 2014-06-12 | 李广 | 一种去除碱回收苛化洗后白泥活性残余碱的方法 |
AU2016270905B2 (en) * | 2015-06-02 | 2021-06-03 | Conocophillips Company | Method of removing hydrogen sulfide from water |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2302270A (en) * | 1938-04-12 | 1942-11-17 | Skolnik Max | Pulp making process |
US4024229A (en) * | 1970-11-06 | 1977-05-17 | The Mead Corporation | Production of polysulfide with PTFE coated catalyst |
US3988198A (en) * | 1973-05-31 | 1976-10-26 | International Telephone And Telegraph Corporation | Method for treating hemi caustic effluents |
FI53728C (fi) * | 1974-03-12 | 1978-07-10 | Ahlstroem Oy | Foerfarande foer aotervinning av kemikalier ur avlutar fraon sulfatcellulosakok och avfallsvatten fraon blekning |
SE434283B (sv) * | 1982-12-01 | 1984-07-16 | Mo Och Domsjoe Ab | Forfarande for delignifiering av cellulosamassa med kveveoxider och syrgas |
US4519881A (en) * | 1984-06-25 | 1985-05-28 | Standard Oil Company (Indiana) | Regeneration of alkaline treating agents |
CA1335976C (en) * | 1989-05-31 | 1995-06-20 | Mahmoud Kamran Azarniouch | Recovery of naoh and other values from spent liquors and bleach plant effluents |
-
1993
- 1993-10-20 FI FI934632A patent/FI98537C/fi not_active IP Right Cessation
-
1994
- 1994-10-18 US US08/325,655 patent/US5510035A/en not_active Expired - Fee Related
- 1994-10-19 CA CA002118464A patent/CA2118464C/en not_active Expired - Fee Related
- 1994-10-20 EP EP94850182A patent/EP0654558B1/en not_active Expired - Lifetime
- 1994-10-20 AT AT94850182T patent/ATE150814T1/de not_active IP Right Cessation
- 1994-10-20 DE DE69402289T patent/DE69402289T2/de not_active Expired - Fee Related
- 1994-10-20 ES ES94850182T patent/ES2100661T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5510035A (en) | 1996-04-23 |
ES2100661T3 (es) | 1997-06-16 |
CA2118464A1 (en) | 1995-04-21 |
FI98537B (fi) | 1997-03-27 |
ATE150814T1 (de) | 1997-04-15 |
FI98537C (fi) | 1997-07-10 |
EP0654558B1 (en) | 1997-03-26 |
FI934632A0 (fi) | 1993-10-20 |
CA2118464C (en) | 2005-10-18 |
DE69402289D1 (de) | 1997-04-30 |
EP0654558A1 (en) | 1995-05-24 |
DE69402289T2 (de) | 1997-10-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application | ||
MA | Patent expired |