Study on the Process Optimization for Intermediate Magnesium Carbonate Tri-Hydrate

Abstract:

It is a kind of high efficiency and energy saving new method to prepare high purity magnesium oxide (MgO) with magnesium carbonate tri-hydrate (MgCO₃·3H₂O) as intermediate. Our research group had already designed orthogonal experimental and got the optimal process conditions of MgCO₃·3H₂O. The operating parameters such as temperature, pH and reaction time had been further optimized in this paper. Intermediate MgCO₃·3H₂O with high aspect ratio and good settling performance was synthesized at the optimal temperature 40-50°C,the optimal pH 8.8-9.0, the optimal reaction time70min, the optimal condition also applied to brine system.

• Periodical: Advanced Materials Research (Volumes 960-961)
• Pages: 199-203
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.960-961.199
• Online since: June 2014
• Authors: Dan Wu, Bi Jun Luo, Wei Liu, Li Cong Wang, Ying Yao, Xi Ping Huang
• Keywords: Brine, Magnesium Carbonate Tri-Hydrate, Magnesium Oxide, Optimal Conditions

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