FR2168530A1 - Hexavalent chromium removal from chlorate - by reduction with sulphide to the trivalent state - Google Patents
Hexavalent chromium removal from chlorate - by reduction with sulphide to the trivalent stateInfo
- Publication number
- FR2168530A1 FR2168530A1 FR7301882A FR7301882A FR2168530A1 FR 2168530 A1 FR2168530 A1 FR 2168530A1 FR 7301882 A FR7301882 A FR 7301882A FR 7301882 A FR7301882 A FR 7301882A FR 2168530 A1 FR2168530 A1 FR 2168530A1
- Authority
- FR
- France
- Prior art keywords
- chlorate
- mole
- solns
- sulphide
- reduction
- 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.)
- Granted
Links
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 title abstract 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title abstract 2
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 title 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- -1 alkali metal chlorate Chemical class 0.000 abstract 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 1
- 150000001340 alkali metals Chemical class 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 abstract 1
- 238000005868 electrolysis reaction Methods 0.000 abstract 1
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical class Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- SRRKNRDXURUMPP-UHFFFAOYSA-N sodium disulfide Chemical compound [Na+].[Na+].[S-][S-] SRRKNRDXURUMPP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052979 sodium sulfide Inorganic materials 0.000 abstract 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US21937572A | 1972-01-20 | 1972-01-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2168530A1 true FR2168530A1 (en) | 1973-08-31 |
| FR2168530B3 FR2168530B3 (enrdf_load_stackoverflow) | 1976-01-23 |
Family
ID=22819028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7301882A Granted FR2168530A1 (en) | 1972-01-20 | 1973-01-19 | Hexavalent chromium removal from chlorate - by reduction with sulphide to the trivalent state |
Country Status (12)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4086150A (en) | 1977-06-27 | 1978-04-25 | Huron Chemicals Limited | Chromate removal by precipitation |
| CN102718260B (zh) * | 2012-07-04 | 2014-04-30 | 甘肃锦世化工有限责任公司 | 联产氯化铬和碳酸铬的生产方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3616344A (en) * | 1968-01-15 | 1971-10-26 | Hooker Chemical Corp | Electrochemical machining with fireretardant sodium chlorate compositions |
-
0
- BE BE794070D patent/BE794070A/xx unknown
-
1973
- 1973-01-03 ZA ZA730059A patent/ZA7359B/xx unknown
- 1973-01-05 AU AU50795/73A patent/AU468693B2/en not_active Expired
- 1973-01-11 CA CA161,057A patent/CA990933A/en not_active Expired
- 1973-01-17 ES ES410714A patent/ES410714A1/es not_active Expired
- 1973-01-17 BR BR73387A patent/BR7300387D0/pt unknown
- 1973-01-18 NL NL7300722A patent/NL7300722A/xx unknown
- 1973-01-19 IT IT19382/73A patent/IT978296B/it active
- 1973-01-19 DE DE2302723A patent/DE2302723A1/de active Pending
- 1973-01-19 FR FR7301882A patent/FR2168530A1/fr active Granted
- 1973-01-19 JP JP48008465A patent/JPS4885497A/ja active Pending
- 1973-06-09 OA OA54929A patent/OA04419A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT978296B (it) | 1974-09-20 |
| AU468693B2 (en) | 1976-01-22 |
| DE2302723A1 (de) | 1973-07-26 |
| OA04419A (fr) | 1980-02-29 |
| CA990933A (en) | 1976-06-15 |
| FR2168530B3 (enrdf_load_stackoverflow) | 1976-01-23 |
| ES410714A1 (es) | 1976-01-01 |
| BR7300387D0 (pt) | 1973-10-11 |
| BE794070A (fr) | 1973-07-16 |
| JPS4885497A (enrdf_load_stackoverflow) | 1973-11-13 |
| ZA7359B (en) | 1973-09-26 |
| AU5079573A (en) | 1974-07-11 |
| NL7300722A (enrdf_load_stackoverflow) | 1973-07-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |