Study on Preparation of Calcium Sulfate Whisker with Leaching Tailings of Nickel Ore
Taking leaching tailings of the nickel ore as raw material, calcium sulfate whiskers were prepared. The effects of Mg/Ca mole ratio, concentration of sulfuric acid, reaction temperature and precipitating time on the recovery of calcium were studied in this paper. The preparation method and reaction conditions of fibrous calcium sulfate whisker have been optimized by an orthogonal experiment, in order to obtain a high grade whisker product which could meet industrial requirements on whiteness and size.
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
L. Wang et al., "Study on Preparation of Calcium Sulfate Whisker with Leaching Tailings of Nickel Ore", Advanced Materials Research, Vols. 287-290, pp. 2084-2087, 2011