工业硫酸锰中钙、镁的净化研究

Abstract

Abstract: The purification of Ca（Ⅱ） and Mg（Ⅱ） in industrial manganese sulfate was studied with manganese fluoride as precipitant.The influences of pH，reaction temperature，and dosage of manganese fluoride on purification rates of Ca（Ⅱ） and Mg（Ⅱ） were investigated through single factor experiment and orthogonal test. Experimental results showed that the main influencing factor was the dosage of manganese fluoride，the second was reaction temperature and the third was pH.When dosage of manganese fluoride was 1 g，reaction temperature was 90 ℃，and pH of solution was 4.5，the purification rates of Ca（Ⅱ） and Mg（Ⅱ） reached 83% and 85%，respectively.Therefore，the adoption of manganese fluoride as precipitant was feasible for purification of industrial manganese sulfate.This method was easy to operate and not to introduce new impurity.

Key words: industrial manganese sulfate, manganese fluoride, purification

CLC Number:

TQ137.12

XIE Zi-Nan, WANG Jiao, SHEN Jia-Guo. Research on purification of Ca(Ⅱ) and Mg(Ⅱ) in industrial manganese sulfate[J]. INORGANICCHEMICALSINDUSTRY, 2015, 47(5): 48-.

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Inorganic Acid-Base-Salt Committee of CIESC

Research on purification of Ca(Ⅱ) and Mg(Ⅱ) in industrial manganese sulfate

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