The effect of calcium hypochlorite on the adsorption of diethyldithiocarbamate (DDTC) on the surface of molybdenite and bismuthinite

Lin, Shangyong; Chai, Xujian; Zhang, Hongliang; Zhou, Shuang; Meng, Xiangsong

doi:10.1016/j.colsurfa.2023.132270

Cited by 2 publications

(1 citation statement)

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“…Because the constituents of impurities are different between natural graphite and Kish graphite, the operating conditions of froth flotation for the beneficiation of Kish graphite should be studied further. Some studies also indicate that flotation reagents, i.e., depressants, collectors, and frothers, can significantly affect the surface properties and flotation performance of a mineral [14,17,18]. Hence, the purpose of this study was to use a multi-stage froth flotation for the beneficiation of Kish graphite and to investigate the appropriate operating conditions.…”

Section: Introductionmentioning

confidence: 99%

Recovery of Kish Graphite from Steelmaking Byproducts with a Multi-Stage Froth Flotation Process

Chen,

Chiang,

Hsieh

2023

Recycling

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Steelmaking processes inevitably generate large amounts of byproducts, including slags, specks of dust, etc., and their treatment has been a critical issue for the steelmaking industry. Kish graphite is a valuable substance existing in steelmaking byproducts, and the recovery of Kish graphite has attracted more attention in recent years. The purpose of this study was to use a multi-stage froth flotation process for the beneficiation of Kish graphite and to investigate the influence of flotation conditions on the mass distribution of graphite and impurities. The results showed that the dust D2 contained ~34 wt.% of graphite and thus had the highest potential for the recovery of Kish graphite. The dosages of frother (methyl isobutyl carbinol, MIBC) at 0.005 kg/t and collector (kerosene) at 1 kg/t were optimal for the flotation of Kish graphite. After three-stage froth flotation, the graphite content of the concentrate was progressively increased to 84.09 wt.%, and the entire recovery rate was 93.05%. During the multi-stage froth flotation process, most of the impurities were separated in stage I, but the Fe-containing impurities were mainly separated in stage II. Some Ca2+, Na+, and K+ were leached out, and there were barely any heavy metals in the liquid phases.

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Section: Introductionmentioning

confidence: 99%