硫酸铝铵-氯化氢反应制备六水氯化铝过程中晶体形貌的研究

Abstract

Abstract:

AlCl₃·6H₂O crystal was prepared from solution of ammonium aluminum sulfate using HCl gas sparging with ammonium aluminum sulfate dodecahydrate as raw material.The effects of sparging rate,sparging time of HCl gas,reaction temperature and initial concentration of Al ³⁺ on the morphology of AlCl₃·6H₂O crystal were investigated.Results showed that when the sparging rate was 60 mL/min,the sparging time was 2 h and the initial mass concentration of Al ³⁺ was 20 g/L in 50 mL ammonium sulfate aqueous solution, AlCl₃·6H₂O products with good shape could be obtained at 30 ℃ reaction temperature.It provided a technical reference for the extraction and preparation of high quality aluminum chloride hexahydrate crystals.

Key words: ammonium aluminum sulfate dodecahydrate, hydrogen chloride, aluminum chloride hexahydrate

CLC Number:

TQ113.73

Zhao Xiaoli,Fang Li,Zhao Zesen,Cheng Huaigang,Cheng Fangqin. Study on crystal morphology in preparation of aluminum chloride hexahydrate by ammonium aluminum sulfate-hydrogen chloride reaction[J]. Inorganic Chemicals Industry, 2019, 51(5): 28-32.

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Study on crystal morphology in preparation of aluminum chloride hexahydrate by ammonium aluminum sulfate-hydrogen chloride reaction

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