氯化钾浮选阴阳离子混合型捕收剂的复配与应用

doi:10.19964/j.issn.1006-4990.2022-0746

Abstract

Abstract:

Potassium chloride is an important potash fertilizerand，which is mainly produced from salt lake brine by flotation methods.Collector plays a key role in the process of flotation.However，the flotation yield is markedly decreased at low temperatures when the octadecylamine is used as collector to produce potassium chloride.Therefore，the mixed collector（cationic/anionic） was developed in the production of potassium chloride with direct flotation at low temperature by reagent combination method.The optimum molar ratio of mixed collector was initially determined as dodecylamine：octadecylamine：sodium dodecyl sulfate=20%:60%:20% by contact angle and surface tension measurements.The flotation experiment showed that the flotation yield of mixed collector for KCl was significantly higher than the octadecylamine.The mixed collector had a higher capacity for potassium chloride when the liquid phase temperature was 5 ℃.

Key words: potassium chloride, normal flotation, mixed collector

CLC Number:

TQ131.13

JIN Yinghao, WANG Siyuan, YU Xuefeng, WANG Jinjing, WEI Zhengying, LIU Liwu, TIAN Haifeng, ZHA Fei. Recombination and application on mixed amine collector（cationic/anionic） for KCl flotation[J]. Inorganic Chemicals Industry, 2023, 55(10): 93-99.

Figures/Tables 9

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矿样	氯化钾品位/%
矿样	十八胺	混合捕收剂3
1号	90.08	92.01
2号	89.19	91.87
3号	85.34	87.69

捕收剂浓度/ （mol∙L^-1）	KCl饱和溶液浊度/NTU
捕收剂浓度/ （mol∙L^-1）	十八胺	混合捕收剂3
1×10^-5	23.67	20.67
5×10^-5	33.40	28.89
1×10^-4	41.53	39.04

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Inorganic Acid-Base-Salt Committee of CIESC

Recombination and application on mixed amine collector（cationic/anionic） for KCl flotation

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