ES2064712T3 - Procedimiento para la electrodialisis progresiva de soluciones acuosas con contenido sulfatoalcalino, asi como dispositivo para la realizacion del procedimiento. - Google Patents
Procedimiento para la electrodialisis progresiva de soluciones acuosas con contenido sulfatoalcalino, asi como dispositivo para la realizacion del procedimiento.Info
- Publication number
- ES2064712T3 ES2064712T3 ES90890287T ES90890287T ES2064712T3 ES 2064712 T3 ES2064712 T3 ES 2064712T3 ES 90890287 T ES90890287 T ES 90890287T ES 90890287 T ES90890287 T ES 90890287T ES 2064712 T3 ES2064712 T3 ES 2064712T3
- Authority
- ES
- Spain
- Prior art keywords
- procedure
- electrodialysis
- aqueous solutions
- alkali metal
- sulfatoalcalino
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
- C01D1/28—Purification; Separation
- C01D1/38—Purification; Separation by dialysis
-
- 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
- B01D61/44—Ion-selective electrodialysis
- B01D61/445—Ion-selective electrodialysis with bipolar membranes; Water splitting
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/74—Preparation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Urology & Nephrology (AREA)
- Inorganic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- General Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
PARA LA ELECTRODIALISIS ESCALONADA DE SOLUCIONES ACUOSAS QUE CONTIENEN SULFATO ALCALINO, CONDUCIENDOSE ESTAS SOLUCIONES A TRAVES DE UNA PLURALIDAD DE CELULAS DE ELECTRODIALISIS QUE TRABAJAN EN SERIE, QUE PRESENTAN CAMARAS DE ACIDOS Y DE BASES Y POSEEN UNA MEMBRANA DE INTERCAMBIO DE CATIONES, SE CONDUCEN LAS SOLUCIONES ACUOSAS QUE CONTIENEN SULFATO ALCALINO EXCLUSIVAMENTE A TRAVES DE CAMARAS DE ACIDO DE LAS CELULAS DE ELECTRODIALISIS, LAS CUALES CELULAS DE ELECTRODIALISIS POSEEN EN SU INTERIOR EXCLUSIVAMENTE MEMBRANA DE INTERCAMBIO DE CATIONES Y ESTAN LIMITADAS POR MEMBRANAS BIPOLARES DE INTERCAMBIO DE IONES. LA INVENCION PERMITE UNA ELABORACION ELECTRODIALITICA MEJORADA DE SOLUCIONES QUE CONTIENEN SULFATO ALCALINO, COMO LAS QUE APARECEN EN LA FABRICACION DE CELULOSA REGENERADA SEGUN EL PROCESO DE XANTOGENATO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT2507/89A AT392735B (de) | 1989-10-31 | 1989-10-31 | Verfahren zur stufenweisen elektrodialyse von alkalisulfathaeltigen waesserigen loesungen sowie vorrichtung zur durchfuehrung des verfahrens |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2064712T3 true ES2064712T3 (es) | 1995-02-01 |
Family
ID=3535524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES90890287T Expired - Lifetime ES2064712T3 (es) | 1989-10-31 | 1990-10-25 | Procedimiento para la electrodialisis progresiva de soluciones acuosas con contenido sulfatoalcalino, asi como dispositivo para la realizacion del procedimiento. |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0426649B1 (es) |
AT (2) | AT392735B (es) |
DE (1) | DE59007445D1 (es) |
ES (1) | ES2064712T3 (es) |
FI (1) | FI98992C (es) |
RU (1) | RU2036251C1 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111530292A (zh) * | 2020-05-12 | 2020-08-14 | 上海统洁环保科技有限公司 | 一种制备电池级氢氧化锂的膜装置及方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1006054A3 (fr) * | 1992-07-03 | 1994-05-03 | Solvay | Procede de fabrication d'une solution aqueuse d'hydroxyde de sodium. |
EP0838435A1 (en) | 1996-10-25 | 1998-04-29 | Kvaerner Process Technology Limited | Process and plant for treating an aqueous waste stream containing alkali metal carboxylates |
FI20225409A1 (en) * | 2022-05-10 | 2023-11-11 | Upm Kymmene Corp | Process for preparing an alkaline cellulose solution |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4391680A (en) * | 1981-12-03 | 1983-07-05 | Allied Corporation | Preparing alkali metal hydroxide by water splitting and hydrolysis |
US4504373A (en) * | 1982-06-01 | 1985-03-12 | Allied Corporation | Electrodialytic water splitting process and apparatus for conversion of alkali metal sulfate values derived from spent rayon spin baths |
US4536269A (en) * | 1983-05-02 | 1985-08-20 | Allied Corporation | Multichamber two-compartment electrodialytic water splitter and method of using same for acidification of aqueous soluble salts |
US4486283A (en) * | 1983-08-01 | 1984-12-04 | Tejeda Alvaro R | Membrane process for converting sodium sulfate into sulfuric acid and sodium carbonate |
-
1989
- 1989-10-31 AT AT2507/89A patent/AT392735B/de not_active IP Right Cessation
-
1990
- 1990-10-25 AT AT90890287T patent/ATE112698T1/de not_active IP Right Cessation
- 1990-10-25 FI FI905253A patent/FI98992C/fi not_active IP Right Cessation
- 1990-10-25 ES ES90890287T patent/ES2064712T3/es not_active Expired - Lifetime
- 1990-10-25 DE DE59007445T patent/DE59007445D1/de not_active Expired - Fee Related
- 1990-10-25 EP EP90890287A patent/EP0426649B1/de not_active Expired - Lifetime
- 1990-10-30 RU SU904831499A patent/RU2036251C1/ru active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111530292A (zh) * | 2020-05-12 | 2020-08-14 | 上海统洁环保科技有限公司 | 一种制备电池级氢氧化锂的膜装置及方法 |
Also Published As
Publication number | Publication date |
---|---|
DE59007445D1 (de) | 1994-11-17 |
FI905253A0 (fi) | 1990-10-25 |
RU2036251C1 (ru) | 1995-05-27 |
EP0426649A1 (de) | 1991-05-08 |
ATA250789A (de) | 1990-11-15 |
FI98992B (fi) | 1997-06-13 |
AT392735B (de) | 1991-05-27 |
FI98992C (fi) | 1997-09-25 |
EP0426649B1 (de) | 1994-10-12 |
ATE112698T1 (de) | 1994-10-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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