BR9509570A - Processo para precipitação de metais de transição e/ou metais alcalinos terrosos de licor esgotado de seção de branqueamento - Google Patents
Processo para precipitação de metais de transição e/ou metais alcalinos terrosos de licor esgotado de seção de branqueamentoInfo
- Publication number
- BR9509570A BR9509570A BR9509570A BR9509570A BR9509570A BR 9509570 A BR9509570 A BR 9509570A BR 9509570 A BR9509570 A BR 9509570A BR 9509570 A BR9509570 A BR 9509570A BR 9509570 A BR9509570 A BR 9509570A
- Authority
- BR
- Brazil
- Prior art keywords
- metals
- chelate
- spent liquor
- chelating agent
- solution
- Prior art date
Links
- 238000004061 bleaching Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 title 1
- 150000001342 alkaline earth metals Chemical class 0.000 title 1
- 238000001556 precipitation Methods 0.000 title 1
- 229910052723 transition metal Inorganic materials 0.000 title 1
- 150000003624 transition metals Chemical class 0.000 title 1
- 229910052751 metal Inorganic materials 0.000 abstract 7
- 239000002184 metal Substances 0.000 abstract 7
- 150000002739 metals Chemical class 0.000 abstract 7
- 239000013522 chelant Substances 0.000 abstract 4
- 239000002738 chelating agent Substances 0.000 abstract 4
- 239000000463 material Substances 0.000 abstract 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 2
- 239000000706 filtrate Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
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
- D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
- D21C11/0028—Effluents derived from the washing or bleaching plants
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/928—Paper mill waste, e.g. white water, black liquor treated
Landscapes
- Paper (AREA)
- Removal Of Specific Substances (AREA)
- Detergent Compositions (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9403779A SE504424C2 (sv) | 1994-11-04 | 1994-11-04 | Sätt att fälla ut övergångsmetaller och alkaliska jordartsmetaller ur blekeriavlutar genom att tillsätta alkalisk vätska |
| PCT/SE1995/001281 WO1996014467A1 (en) | 1994-11-04 | 1995-10-31 | Method of precipitating transition metals and alkaline earth metals from bleach plant effluents |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9509570A true BR9509570A (pt) | 1997-09-16 |
Family
ID=20395847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9509570A BR9509570A (pt) | 1994-11-04 | 1995-10-31 | Processo para precipitação de metais de transição e/ou metais alcalinos terrosos de licor esgotado de seção de branqueamento |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6024833A (pt) |
| EP (1) | EP0803008B1 (pt) |
| AT (1) | ATE197614T1 (pt) |
| BR (1) | BR9509570A (pt) |
| CA (1) | CA2203392A1 (pt) |
| DE (1) | DE69519441T2 (pt) |
| ES (1) | ES2153904T3 (pt) |
| PT (1) | PT803008E (pt) |
| SE (1) | SE504424C2 (pt) |
| WO (1) | WO1996014467A1 (pt) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9603029D0 (sv) * | 1996-08-20 | 1996-08-20 | Svenska Traeforskningsinst | Method for lowering the level of oxalic acid |
| SE511794C2 (sv) * | 1997-06-30 | 1999-11-29 | Sunds Defibrator Ind Ab | Sätt att reducera halten kalcium i vätskefasen i en pappersmassasuspension |
| SE9803384L (sv) * | 1998-03-02 | 1999-09-03 | Kemira Kemi Ab | Förfarande för behandling av processvatten |
| SE522436C2 (sv) | 1998-05-26 | 2004-02-10 | Andritz Oy | Förfarande för förhindrande av nedsmutsning av värmeöverföringsytor i en flerstegsindunstningsanläggning för svartlut och blekeriutsläpp |
| US20070000628A1 (en) * | 2005-06-30 | 2007-01-04 | Sealey James E Ii | Method for removal of metals from a bleach plant filtrate stream |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE417114B (sv) * | 1977-07-25 | 1981-02-23 | Mo Och Domsjoe Ab | Forfarande for forebyggande av inkrustbildning i cellulosafabriker |
| DE2834259A1 (de) * | 1978-08-04 | 1980-02-28 | Dsi Sportartikel | Skistockklammer |
| DE69004492T3 (de) * | 1989-06-06 | 2001-11-15 | Eka Nobel Ab, Bohus | Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen. |
| AT395028B (de) * | 1990-02-07 | 1992-08-25 | Chemiefaser Lenzing Ag | Verfahren zum chlorfreien bleichen von kunstfaserzellstoff |
| US5509999A (en) * | 1993-03-24 | 1996-04-23 | Kamyr, Inc. | Treatment of bleach plant effluents |
| SE9301161L (sv) * | 1993-04-07 | 1994-10-08 | Sunds Defibrator Ind Ab | Förfarande för behandling av processvatten |
| SE501613C2 (sv) * | 1993-08-03 | 1995-03-27 | Kvaerner Pulping Tech | Sätt vid integrering av blekning och återvinning vid framställning av massa |
-
1994
- 1994-11-04 SE SE9403779A patent/SE504424C2/sv not_active IP Right Cessation
-
1995
- 1995-10-31 ES ES95936828T patent/ES2153904T3/es not_active Expired - Lifetime
- 1995-10-31 AT AT95936828T patent/ATE197614T1/de active
- 1995-10-31 DE DE69519441T patent/DE69519441T2/de not_active Expired - Lifetime
- 1995-10-31 PT PT95936828T patent/PT803008E/pt unknown
- 1995-10-31 BR BR9509570A patent/BR9509570A/pt not_active Application Discontinuation
- 1995-10-31 CA CA002203392A patent/CA2203392A1/en not_active Abandoned
- 1995-10-31 WO PCT/SE1995/001281 patent/WO1996014467A1/en active IP Right Grant
- 1995-10-31 EP EP95936828A patent/EP0803008B1/en not_active Expired - Lifetime
-
1997
- 1997-05-02 US US08/850,737 patent/US6024833A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0803008A1 (en) | 1997-10-29 |
| DE69519441D1 (de) | 2000-12-21 |
| CA2203392A1 (en) | 1996-05-17 |
| SE504424C2 (sv) | 1997-02-10 |
| EP0803008B1 (en) | 2000-11-15 |
| ES2153904T3 (es) | 2001-03-16 |
| ATE197614T1 (de) | 2000-12-15 |
| SE9403779D0 (sv) | 1994-11-04 |
| US6024833A (en) | 2000-02-15 |
| PT803008E (pt) | 2001-04-30 |
| WO1996014467A1 (en) | 1996-05-17 |
| SE9403779L (sv) | 1996-05-05 |
| DE69519441T2 (de) | 2001-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1229487A (en) | Process for the recovery of silver from a residue essentially free of elemental sulphur | |
| BR9509570A (pt) | Processo para precipitação de metais de transição e/ou metais alcalinos terrosos de licor esgotado de seção de branqueamento | |
| ATE19416T1 (de) | Verfahren zur kontinuierlichen entfernung von kieselsaeure aus zellstoffablaugen. | |
| BR9401526A (pt) | Processo para o alvejamento de polpa contendo ligno-celulose | |
| US4331507A (en) | Desilication in alkaline pulp processes | |
| BR9507394A (pt) | Processo industrialmente realista para lixiviação alcalina de um material titanìfero | |
| FI950505A (fi) | Menetelmä koboltin ja volframin talteenottamiseksi reaktionesteistä ja niiden uudelleen käyttämiseksi | |
| DE69601194D1 (de) | Verfahren zum Deinken von Altpapier | |
| GB1454660A (en) | Method of recovering sodium hydroxide from pulping or bleaching waste liquor | |
| JPH08500645A (ja) | プロセス水処理方法 | |
| DE69702440D1 (de) | Verfahren zur wiedergewinnung von faser aus bedrucktem altpapier | |
| SE9301161L (sv) | Förfarande för behandling av processvatten | |
| JPH1072788A (ja) | 化学パルプ製造中に遷移金属イオンを最小限にする方法およびそのパルプ | |
| US2266137A (en) | Process of treating manganese silicate ores | |
| DE3464509D1 (en) | Treatment of the liquors entering the causticizing cycle of the kraft process with a view to a subsequent use of the calcium carbonate | |
| FI98225C (fi) | Menetelmä haitallisten epäpuhtauksien poistamiseksi selluloosapitoisen materiaalin alkalisen delignifioinnin yhteydessä | |
| US2898994A (en) | Method of making paper pulp | |
| ATE150814T1 (de) | Verfahren zum trennen von natriumhydroxyd aus weisslauge | |
| ATE32113T1 (de) | Verfahren und vorrichtung zur wiedergewinnung von gedrucktem altpapier. | |
| CN1057851A (zh) | 猪毛边皮二元法制胶工艺 | |
| CA2185904A1 (en) | Recovering chemical values from black liquor | |
| BR9304438A (pt) | Processo para o alvejamento de polpa contendo ligno-celulose. | |
| DE3634227A1 (de) | Verfahren zur aufarbeitung von sodaschlacken aus der entschwefelung von roheisen | |
| SU1186569A1 (ru) | Способ переработки боксита | |
| CA2259109A1 (en) | Kraft pulping process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FA10 | Dismissal: dismissal - article 33 of industrial property law |