以3种氟化物为助浸剂的石煤酸法直接浸出提钒研究

Abstract

Abstract: Vanadium was extracted from stone coal which was got from the bottom layer of a stone coal vanadium ore in the West of Hunan Province by direct acid leaching technology with three kinds of fluoride aid-leaching reagents.Structures and morpho- logies of leaching residue were studied by XRD and SEM，and contents of 18 kinds of elements were measured by ICP-AES experiments.Further vanadium extracted study was carried out with NaF and CaF₂ as aid-leaching reagents，respectively.Ex- tracting of vanadium and removal of impurities in each step were studied by ICP-AES experiments of solutions in every step.

Key words: vanadium, stone coal, direct acid leaching, fluoride aid-leaching

CLC Number:

TQ135.11

HAN Feng, HONG Qi-Mao, WANG Jiang, ZHANG Qiu-Yu, GAO Xi-Jie, ZHOU Zhi-Qiang. Study on direct acid leaching of vanadium from stone coal with three kinds of fluoride aid-leaching reagents[J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(8): 39-.

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National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Study on direct acid leaching of vanadium from stone coal with three kinds of fluoride aid-leaching reagents

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