Precipitation of iron oxides from ammonia-ammonium sulphate solutions
β Scribed by R.P. Das; S. Anand
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 841 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0304-386X
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## Abstract The main factors affecting the characteristics of precipitated nickel ammonium sulphate hexahydrate crystals from aqueous solution have been investigated. Over the range 20β35 Β°C, the crystal median size increases with temperature, but decreases with supersaturation. The size distributi
## Abstract In the present work, the effects of sulphate ions on the iron precipitation from aqueous solution were investigated. It was shown that sulphate ions delayed the iron precipitation when this ion was added in form of Na~2~SO~4~. This effect became less significant in presence of magnesium
## Abstract A precipitation study has been made with nickel ammonium sulphate produced by mixing aqueous solutions of its constituent salts. Rates of nucleation, as indicated by the induction period, were measured for both agitated and nonβagitated systems over the temperature range 0β35 Β°C. The nu