FI98992B - Menetelmä alkalisulfaattipitoisten vesiliuosten käsittelemiseksi vaiheittaisella sähködialyysillä sekä laite menetelmän suorittamiseksi - Google Patents
Menetelmä alkalisulfaattipitoisten vesiliuosten käsittelemiseksi vaiheittaisella sähködialyysillä sekä laite menetelmän suorittamiseksiInfo
- Publication number
- FI98992B FI98992B FI905253A FI905253A FI98992B FI 98992 B FI98992 B FI 98992B FI 905253 A FI905253 A FI 905253A FI 905253 A FI905253 A FI 905253A FI 98992 B FI98992 B FI 98992B
- Authority
- FI
- Finland
- Prior art keywords
- electrodialysis
- stepwise
- alkali metal
- carrying
- containing alkali
- Prior art date
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)
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 (3)
Publication Number | Publication Date |
---|---|
FI905253A0 FI905253A0 (fi) | 1990-10-25 |
FI98992B true FI98992B (fi) | 1997-06-13 |
FI98992C FI98992C (fi) | 1997-09-25 |
Family
ID=3535524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI905253A FI98992C (fi) | 1989-10-31 | 1990-10-25 | Menetelmä alkalisulfaattipitoisten vesiliuosten käsittelemiseksi vaiheittaisella sähködialyysillä sekä laite menetelmän suorittamiseksi |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0426649B1 (fi) |
AT (2) | AT392735B (fi) |
DE (1) | DE59007445D1 (fi) |
ES (1) | ES2064712T3 (fi) |
FI (1) | FI98992C (fi) |
RU (1) | RU2036251C1 (fi) |
Families Citing this family (4)
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 |
CN111530292B (zh) * | 2020-05-12 | 2021-12-14 | 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 |
FI20225409A1 (fi) * | 2022-05-10 | 2023-11-11 | Upm Kymmene Corp | Prosessi alkalisen selluloosaliuoksen valmistamiseksi |
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 DE DE59007445T patent/DE59007445D1/de not_active Expired - Fee Related
- 1990-10-25 ES ES90890287T patent/ES2064712T3/es not_active Expired - Lifetime
- 1990-10-25 EP EP90890287A patent/EP0426649B1/de not_active Expired - Lifetime
- 1990-10-25 FI FI905253A patent/FI98992C/fi not_active IP Right Cessation
- 1990-10-30 RU SU904831499A patent/RU2036251C1/ru active
Also Published As
Publication number | Publication date |
---|---|
RU2036251C1 (ru) | 1995-05-27 |
EP0426649B1 (de) | 1994-10-12 |
FI905253A0 (fi) | 1990-10-25 |
ES2064712T3 (es) | 1995-02-01 |
EP0426649A1 (de) | 1991-05-08 |
ATE112698T1 (de) | 1994-10-15 |
FI98992C (fi) | 1997-09-25 |
ATA250789A (de) | 1990-11-15 |
AT392735B (de) | 1991-05-27 |
DE59007445D1 (de) | 1994-11-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2090817T3 (es) | Procedimiento y dispositivo para la desalinizacion de soluciones acuosas por medio de masas intercambiadoras de iones. | |
KR930016433A (ko) | α-글리코실-L-아스코르브산 고함유물의 제조방법 및 그 제조를 위한 분리 시스템 | |
US5395497A (en) | Process for the manufacture of an aqueous solution of sodium hydroxide | |
CA2049941A1 (en) | Electrodialytic water splitting process for the treatment of aqueous electrolytes | |
FI98992C (fi) | Menetelmä alkalisulfaattipitoisten vesiliuosten käsittelemiseksi vaiheittaisella sähködialyysillä sekä laite menetelmän suorittamiseksi | |
ATE121054T1 (de) | Verfahren zur herstellung von alkalimetall- hypophosphiten. | |
DE69807959D1 (de) | Verfahren zur Herstellung eines Apparats für die Produktion von entionisiertem Wasser | |
JPH04502274A (ja) | 塩基と塩を含む物質から塩基の製造方法 | |
FR2571977B1 (fr) | Procede de separation de constituants d'un acide faible, notamment d'acide borique et membrane pour la mise en oeuvre dudit procede. | |
JPWO2003014028A1 (ja) | 水溶液中のヨウ素イオンの選択分離方法、およびヨウ素アルカリ塩の製造方法 | |
SU891111A1 (ru) | Электродиализатор | |
US3616386A (en) | Electrodialytic demineralization of whey using neutral membranes | |
AU640510B2 (en) | Process for the fine purification of an aqueous alkali chloride solution for use in membrane electrolysis | |
JPS5764619A (en) | Preparation of organic acid | |
RU2056917C1 (ru) | Способ изготовления трековых мембран | |
JPH08229568A (ja) | アンモニア性窒素の除去方法 | |
SE9500732L (sv) | Förfarande för behandling av vätskor | |
AU609969B2 (en) | Method of preparing lactulose | |
SU1274714A1 (ru) | Электродиалиазатор | |
DE69107157T2 (de) | Bipolare Anordnung von anionischen und kationischen Membranen und deren Verwendung. | |
SU953007A1 (ru) | Способ получени тринатрийпирофосфата | |
CA2138482A1 (fr) | Procede de fabrication d'hydroxyde de metal alcalin | |
DE3870754D1 (de) | Verfahren zur reinigung eines dipeptid-esters. | |
JPH0149742B2 (fi) | ||
SU833271A1 (ru) | Способ регенерации ионообменныхМЕМбРАН |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application | ||
MM | Patent lapsed |
Owner name: LENZING AKTIENGESELLSCHAFT |