Preparation of Calcium Carbonate Superfine Powder by Calcium Carbide Residue

Calcium carbonate superfine powder with high purity was prepared from calcium carbide residue by a liquid phase process using ammonium chloride as extraction agent and ammonium carbonate agent. The effects of some factors on the reaction were investigated. The calcium carbonate was characterized by...

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Bibliographic Details
Published inEnergy procedia Vol. 17; pp. 1635 - 1640
Main Authors Zhang, Wanyou, Hu, Yang, Xi, Lijuan, Zhang, Yingjie, Gu, Haicheng, Zhang, Ting
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2012
Subjects
calcium carbide residue
calcium carbonate
comprehensive utilization
liquid phase process
superfine powder
calcium carbide residue
calcium carbonate
comprehensive utilization
superfine powder
liquid phase process
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Summary:Calcium carbonate superfine powder with high purity was prepared from calcium carbide residue by a liquid phase process using ammonium chloride as extraction agent and ammonium carbonate agent. The effects of some factors on the reaction were investigated. The calcium carbonate was characterized by X-ray powder diffraction device (XRD) and scanning electron microscopy (SEM). The optimum preparation conditions were determined as follows: the concentration of calcium ion 0.3mol/L, The mass ratio of ammonium citrate and calcium ion 0.1, temperature of carbonization 10°C The product is calcium carbonate of single crystal structure with the diameter of 40-90nm.
ISSN:1876-6102
1876-6102
DOI:10.1016/j.egypro.2012.02.291