GB1244194A - Improvements in or relating to the chemical purification of contaminated nickel salts - Google Patents
Improvements in or relating to the chemical purification of contaminated nickel saltsInfo
- Publication number
- GB1244194A GB1244194A GB4478468A GB4478468A GB1244194A GB 1244194 A GB1244194 A GB 1244194A GB 4478468 A GB4478468 A GB 4478468A GB 4478468 A GB4478468 A GB 4478468A GB 1244194 A GB1244194 A GB 1244194A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphide
- nickel salts
- excess
- solution
- nickel
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/11—Sulfides
Abstract
1,244,194. Purifying nickel salts. RESEARCH HOLLAND N.V. 20 Sept., 1968 [22 Sept., 1967], No. 44784/68. Heading C1A. [Also in Division C7] Nickel salts or nickel salt solutions contaminated with copper and zinc are purified by treating a solution of the nickel salt at a pH #4À0 with a sulphide, preferably H 2 S or an ammonium, alkali or alkaline earth metal sulphide or polysulphide, excess sulphide being removed by oxidation or precipitation. Specified nickel salts are the sulphate, chloride, sulphamate and fluoborate. The excess sulphide may be oxidized with a hydroperoxide or KMnO 4 , preferably after the solution has been filtered in order to remove contaminants and thus to prevent formation of soluble ZnSO 4 . The excess sulphide may be precipitated by the addition of a metal ion of which the sulphide has a smaller solubility product than NiS but is preferably removed by raising the pH to 5À0-5À5, thereby precipitating the excess sulphide as NiS. Active carbon is preferably added to the solution when the excess sulphide has been removed. Nickel salts purified in this manner are particularly useful in electrolytic processes (see Division C7).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE704222 | 1967-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1244194A true GB1244194A (en) | 1971-08-25 |
Family
ID=3851517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4478468A Expired GB1244194A (en) | 1967-09-22 | 1968-09-20 | Improvements in or relating to the chemical purification of contaminated nickel salts |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE704222A (en) |
| GB (1) | GB1244194A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2456142A1 (en) * | 1979-05-10 | 1980-12-05 | Inco Ltd | PROCESS FOR SEPARATING NICKEL OR DISSOLVED COBALT OR BOTH OF AN AQUEOUS PELLET OF IRON OXIDE PARTICLES |
| US7018605B2 (en) * | 2002-02-25 | 2006-03-28 | Sumitomo Metal Mining Co., Ltd. | Sulfidation reaction control method |
| CN100423825C (en) * | 2006-08-18 | 2008-10-08 | 丁四宜 | Hydrogen sulfide absorption and utilization device |
-
1967
- 1967-09-22 BE BE704222D patent/BE704222A/xx unknown
-
1968
- 1968-09-20 GB GB4478468A patent/GB1244194A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2456142A1 (en) * | 1979-05-10 | 1980-12-05 | Inco Ltd | PROCESS FOR SEPARATING NICKEL OR DISSOLVED COBALT OR BOTH OF AN AQUEOUS PELLET OF IRON OXIDE PARTICLES |
| US7018605B2 (en) * | 2002-02-25 | 2006-03-28 | Sumitomo Metal Mining Co., Ltd. | Sulfidation reaction control method |
| CN100423825C (en) * | 2006-08-18 | 2008-10-08 | 丁四宜 | Hydrogen sulfide absorption and utilization device |
Also Published As
| Publication number | Publication date |
|---|---|
| BE704222A (en) | 1968-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1378053A (en) | Processes for the precipitation of copper sulhpide | |
| US3674428A (en) | Mercury removal | |
| GB1446548A (en) | Effluent treatment | |
| IE41041B1 (en) | Process for removing chloride ions from an aqueous solution of zinc sulphate | |
| GB1525458A (en) | Electrolytic process for the recovery of zinc and manganese dioxide | |
| GB1362601A (en) | Electrolytic recovery of copper | |
| GB1523109A (en) | Treatment of sulphide-bearing waters with chlorine dioxid | |
| GB970992A (en) | A process for the extraction of lithium from its ore | |
| GB1430328A (en) | Sulphur recovery system | |
| GB1493796A (en) | Recovery of sodium hydroxide and sodium chloride from electrolytic liquor | |
| GB1244194A (en) | Improvements in or relating to the chemical purification of contaminated nickel salts | |
| GB1368602A (en) | Manufacture of copper oxide | |
| GB1379421A (en) | Process for recovering antimony from spent catalyst | |
| GB1534171A (en) | Process for the recovery of metals contained in sludges containing metal sulphates resulting from the processing of ores | |
| GB1047304A (en) | ||
| GB1308761A (en) | Method of removing dissolved ferric iron from iron-bearing solutions | |
| GB1312603A (en) | Control of the impurity content of zinc sulphate solutions | |
| GB1379462A (en) | Process for recovery of metal values | |
| GB1392331A (en) | Recovery of mercury from chlorine cells utilizing mercury cathodes | |
| ES390127A1 (en) | Process for the purification of aqueous magnesium chloride solutions | |
| GB1498627A (en) | Method of purifying ammonium fluoride solutions | |
| GB1404586A (en) | Process for recovering sulphuric acid | |
| GB1337739A (en) | Process for recovering lead and silver contained in residues obtained from zinc and or complex concentrates | |
| GB1494564A (en) | Separation of iron from zinc-containing solutions | |
| GB896603A (en) | Improvements in or relating to the purification of beryllium compounds |