Dutta, R K and Banerjee, T (1951) Recovery of nickel and zinc from Silver refinery waste liquid - Part II (Chemical Method). Other (TMP). CSIR-NML, Jamshedpur, Jamshedpur.
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Abstract
A method for recovery of nickel oxide from silver refinery waste liquid having the composition nickel sulphate - 2 gm, zinc sulphate - 2 gm sulphuric acid - 3.6 gm in an aqueous solution of 100 ml has been developed. The method consists in adding the neutral solution of the above mixture (neutralized by caustic soda) to a sodium hypochlorite solution containing an excess of sodium hydroxide with a constant stirring when nickelic oxide is precipitated and a soluble sodium zincate is formed. The filtrate contains almost all the amount of zinc free from nickel and the residue is nickelic oxide to the extent of Ni : Zn = 95:5.
| Item Type: | Project Reports (Other (TMP)) |
|---|---|
| Uncontrolled Keywords: | Silver refinery waste liquid ,recovery of nickel and zinc, caustic soda, sodium zincate ,nickelic oxide |
| Subjects: | Metallurgy > Waste Recycling |
| Divisions: | Information Management and Dissemination Centre |
| Depositing User: | Users 43 not found. |
| Date Deposited: | 17 Feb 2022 10:36 |
| Last Modified: | 09 Jun 2022 08:55 |
| URI: | http://eprints.nmlindia.org/id/eprint/8693 |
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