The solubility of gypsum and anhydrite in simulated laterite pressure acid leach solutions up to 250 °C

• Published in: Hydrometallurgy Vol. 102; no. 1; pp. 1 - 13
• Main Authors: Azimi, G., Papangelakis, V.G.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.04.2010; Elsevier
• Subjects: Anhydrite; Applied sciences; Calcium sulphate; Exact sciences and technology; Gypsum; Metals. Metallurgy; Nickel laterite; Pressure acid leaching; Production of metals; Solubility; Thermodynamic modelling; Nickel laterite; Anhydrite; Solubility; Gypsum; Pressure acid leaching; Thermodynamic modelling; Calcium sulphate; Thermodynamics; Laterite; Acid leaching; Modeling; Hydrometallurgy

A theoretical and experimental investigation of the solubility of gypsum and anhydrite in simulated laterite pressure acid leach (PAL) solutions containing 0–0.3 mol/L NiSO 4, 0–0.4 mol/L H 2SO 4, 0–0.3 mol/L MgSO 4 and 0.005 mol/L Al 2(SO 4) 3 was conducted in the temperature range of 25–250 °C. Hi...