NO910888D0 - Fremgangsmaate for fjerning av vesentlig kromfritt sulfat fra en kromat- og sulfatholdig vandig alkalimetallkloratopploesning. - Google Patents
Fremgangsmaate for fjerning av vesentlig kromfritt sulfat fra en kromat- og sulfatholdig vandig alkalimetallkloratopploesning.Info
- Publication number
- NO910888D0 NO910888D0 NO910888A NO910888A NO910888D0 NO 910888 D0 NO910888 D0 NO 910888D0 NO 910888 A NO910888 A NO 910888A NO 910888 A NO910888 A NO 910888A NO 910888 D0 NO910888 D0 NO 910888D0
- Authority
- NO
- Norway
- Prior art keywords
- chromate
- chrome
- sulfate
- significant
- removal
- Prior art date
Links
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 title 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title 1
- 229910052783 alkali metal Inorganic materials 0.000 title 1
- 150000001340 alkali metals Chemical class 0.000 title 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 title 1
- 229910021653 sulphate ion Inorganic materials 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/12—Chloric acid
- C01B11/14—Chlorates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/12—Chloric acid
- C01B11/14—Chlorates
- C01B11/145—Separation; Crystallisation; Purification, After-treatment; Stabilisation by additives
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9102502A FR2673423B1 (fr) | 1991-03-01 | 1991-03-01 | Procede d'elimination de sulfates contenus dans des solutions de chlorates alcalins et production desdits chlorates alcalins. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO910888D0 true NO910888D0 (no) | 1991-03-06 |
| NO910888L NO910888L (no) | 1992-09-02 |
| NO303573B1 NO303573B1 (no) | 1998-08-03 |
Family
ID=9410262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO910888A NO303573B1 (no) | 1991-03-01 | 1991-03-06 | FremgangsmÕte for fjerning av vesentlig kromfritt sulfat fra en kromat- og sulfatholdig vandig alkalimetallkloratoppl°sning, samt kontinuerlig fremgangsmÕte for fremstilling av alkalimetallklorat |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5176801A (no) |
| CA (1) | CA2037718C (no) |
| FI (1) | FI107810B (no) |
| FR (1) | FR2673423B1 (no) |
| NO (1) | NO303573B1 (no) |
| SE (1) | SE504562C2 (no) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE511987C2 (sv) * | 1993-03-09 | 2000-01-10 | Eka Chemicals Ab | Metod för avskiljning av sulfat från en vattenhaltig elektrolyt i en alkalimetallkloratprocess |
| SE512074C2 (sv) * | 1993-03-09 | 2000-01-24 | Eka Chemicals Ab | Metod att avlägsna kalciumjoner och kiselföreningar från vätska i en alkalimetallkloratprocess |
| FR2761357B1 (fr) * | 1997-03-28 | 1999-06-04 | Tredi | Production de gypse purifie a partir d'effluents industriels charges en sulfates |
| GB9815173D0 (en) * | 1998-07-13 | 1998-09-09 | Nat Power Plc | Process for the removal of sulphate ions |
| US7250144B2 (en) * | 2005-05-11 | 2007-07-31 | Tronox Llc | Perchlorate removal from sodium chlorate process |
| FR2951383B1 (fr) | 2009-10-20 | 2012-09-21 | Solvay | Procede pour la valorisation conjointe de sels solubles contenus dans un residu d'un procede industriel |
| WO2012129510A1 (en) * | 2011-03-24 | 2012-09-27 | New Sky Energy, Inc. | Sulfate-based electrolysis processing with flexible feed control, and use to capture carbon dioxide |
| JP6236392B2 (ja) | 2012-10-01 | 2017-11-22 | 日本製紙株式会社 | 多硫化物製造用電解槽による連続電解方法及びそれを実施する電解装置 |
| CN113247921B (zh) * | 2021-05-20 | 2023-04-07 | 湖南恒光科技股份有限公司 | 一种氯碱与氯酸钠联合脱硝工艺 |
| CN114436311A (zh) * | 2022-02-24 | 2022-05-06 | 四川大学 | 一种钙芒硝石膏的深度提纯方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2450259B2 (de) * | 1974-10-23 | 1979-03-29 | Bayer Ag, 5090 Leverkusen | Verfahren zur Reinigung von Elektrolysesole |
| JPS5722117A (en) * | 1980-07-09 | 1982-02-05 | Toagosei Chem Ind Co Ltd | Purifying method of electrolytic brine |
| US4636376A (en) * | 1985-09-30 | 1987-01-13 | Ppg Industries, Inc. | Sulfate removal from alkali metal chlorate solutions |
| US4702805A (en) * | 1986-03-27 | 1987-10-27 | C-I-L Inc. | Production of sodium chlorate |
| US4747917A (en) * | 1987-03-02 | 1988-05-31 | Olin Corporation | Scale-free process for purifying concentrated alkali metal halide brines containing sulfate ions as an impurity |
-
1991
- 1991-03-01 FR FR9102502A patent/FR2673423B1/fr not_active Expired - Lifetime
- 1991-03-06 SE SE9100657A patent/SE504562C2/sv not_active IP Right Cessation
- 1991-03-06 NO NO910888A patent/NO303573B1/no not_active IP Right Cessation
- 1991-03-07 CA CA002037718A patent/CA2037718C/en not_active Expired - Lifetime
- 1991-03-07 US US07/665,978 patent/US5176801A/en not_active Expired - Lifetime
- 1991-03-07 FI FI911137A patent/FI107810B/fi active
Also Published As
| Publication number | Publication date |
|---|---|
| FI107810B (fi) | 2001-10-15 |
| SE504562C2 (sv) | 1997-03-03 |
| SE9100657D0 (sv) | 1991-03-06 |
| FI911137A0 (fi) | 1991-03-07 |
| SE9100657L (sv) | 1992-09-02 |
| NO910888L (no) | 1992-09-02 |
| FI911137A (fi) | 1992-09-02 |
| CA2037718A1 (en) | 1992-09-02 |
| CA2037718C (en) | 1998-11-24 |
| FR2673423A1 (fr) | 1992-09-04 |
| FR2673423B1 (fr) | 1994-04-15 |
| NO303573B1 (no) | 1998-08-03 |
| US5176801A (en) | 1993-01-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK1K | Patent expired |