ES2118389T3 - Procedimiento para un tratamiento electroquimico de lejia residual de celulosa. - Google Patents
Procedimiento para un tratamiento electroquimico de lejia residual de celulosa.Info
- Publication number
- ES2118389T3 ES2118389T3 ES94908258T ES94908258T ES2118389T3 ES 2118389 T3 ES2118389 T3 ES 2118389T3 ES 94908258 T ES94908258 T ES 94908258T ES 94908258 T ES94908258 T ES 94908258T ES 2118389 T3 ES2118389 T3 ES 2118389T3
- Authority
- ES
- Spain
- Prior art keywords
- electrochemical treatment
- procedure
- bleach
- residual bleach
- cellulose residual
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 239000007844 bleaching agent Substances 0.000 title 1
- 229920002678 cellulose Polymers 0.000 title 1
- 239000001913 cellulose Substances 0.000 title 1
- 239000002699 waste material Substances 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 229920005610 lignin Polymers 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/427—Electro-osmosis
- B01D61/4271—Electro-osmosis comprising multiple electro-osmosis steps
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4698—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electro-osmosis
-
- 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
- D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
-
- 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
- D21C11/0042—Fractionating or concentration of spent liquors by special methods
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/46115—Electrolytic cell with membranes or diaphragms
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Urology & Nephrology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Molecular Biology (AREA)
- Electrochemistry (AREA)
- Analytical Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Compounds Of Unknown Constitution (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
EN UN TRATAMIENTO ELECTROQUIMICO SE ELIMINAN LOS COMPONENTES CATIONOGENOS A PARTIR DE LA LEJIA DE DESPERDICIO DE SUSTANCIA CELULOSICA CONTENIENDO SULFONATOS DE LIGNINA EN EL ESPACIO DE ANODO. LOS ACIDOS SULFONICOS DE LIGNINA SON ELABORADOS A PARTIR DE LA LEJIA DE DESPERDICIO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4306260A DE4306260C2 (de) | 1993-03-01 | 1993-03-01 | Verfahren und Anlage zu einer elektrochemischen Behandlung von Zellstoffablauge |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2118389T3 true ES2118389T3 (es) | 1998-09-16 |
Family
ID=6481607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES94908258T Expired - Lifetime ES2118389T3 (es) | 1993-03-01 | 1994-02-24 | Procedimiento para un tratamiento electroquimico de lejia residual de celulosa. |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0687247B1 (es) |
AT (1) | ATE165585T1 (es) |
CA (1) | CA2157394C (es) |
DE (2) | DE4306260C2 (es) |
ES (1) | ES2118389T3 (es) |
FI (1) | FI116286B (es) |
NO (1) | NO308522B1 (es) |
WO (1) | WO1994020419A1 (es) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0960865A1 (de) * | 1998-05-25 | 1999-12-01 | Chemische Werke Zell-Wildshausen GMBH | Mittel zur Reduzierung von Chrom (VI)-Ionen in einer hydraulisch abbindenden Masse |
ES2208976T3 (es) * | 1998-01-27 | 2004-06-16 | Chemische Werke Zell-Wildshausen Gmbh | Agente para la reduccion de iones de cromo (vi) en cemento. |
AU2718699A (en) * | 1998-01-27 | 1999-08-09 | Chemische Werke Zell-Wildshausen Gmbh | Medium for reducing chromium (vi) ions in a water-curing mass |
DE102009037946A1 (de) * | 2009-08-18 | 2011-02-24 | Voith Patent Gmbh | Verfahren zur Nutzung von bei der Erzeugung lignozellulosischer Faserstoffe anfallendem Abwasser |
CN106163643B (zh) | 2014-02-28 | 2019-05-07 | 诺拉姆工程及建造有限公司 | 部分水解纤维素的纯化方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4836401A (es) * | 1971-09-09 | 1973-05-29 | ||
CH560289A5 (es) * | 1971-12-30 | 1975-03-27 | Danske Sukkerfab | |
SU504847A1 (ru) * | 1973-10-15 | 1976-02-28 | Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности | Способ получени лигносульфонатов |
AT377546B (de) * | 1983-02-25 | 1985-03-25 | Dieter J Becker | Verfahren zur reinigung von bei der zellstoffherstellung, insbesondere bei der chlorbleiche von zellstoff, anfallenden abwaessern |
US4717450A (en) * | 1985-08-19 | 1988-01-05 | University Of British Columbia | Removal of chloride from process solutions |
-
1993
- 1993-03-01 DE DE4306260A patent/DE4306260C2/de not_active Expired - Fee Related
-
1994
- 1994-02-24 EP EP94908258A patent/EP0687247B1/de not_active Expired - Lifetime
- 1994-02-24 DE DE59405847T patent/DE59405847D1/de not_active Expired - Fee Related
- 1994-02-24 WO PCT/DE1994/000192 patent/WO1994020419A1/de active IP Right Grant
- 1994-02-24 CA CA002157394A patent/CA2157394C/en not_active Expired - Fee Related
- 1994-02-24 ES ES94908258T patent/ES2118389T3/es not_active Expired - Lifetime
- 1994-02-24 AT AT94908258T patent/ATE165585T1/de not_active IP Right Cessation
-
1995
- 1995-08-30 NO NO953397A patent/NO308522B1/no unknown
- 1995-08-31 FI FI954089A patent/FI116286B/fi active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
NO953397L (no) | 1995-08-30 |
DE4306260C2 (de) | 1996-05-30 |
FI954089A0 (fi) | 1995-08-31 |
EP0687247B1 (de) | 1998-04-29 |
CA2157394C (en) | 2001-05-01 |
FI954089A (fi) | 1995-08-31 |
DE59405847D1 (de) | 1998-06-04 |
FI116286B (fi) | 2005-10-31 |
DE4306260A1 (de) | 1994-09-08 |
EP0687247A1 (de) | 1995-12-20 |
CA2157394A1 (en) | 1994-09-15 |
ATE165585T1 (de) | 1998-05-15 |
NO953397D0 (no) | 1995-08-30 |
WO1994020419A1 (de) | 1994-09-15 |
NO308522B1 (no) | 2000-09-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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