Flotation Performance, Structure-Activity Relationship and Adsorption Mechanism of O-Isopropyl-N-Ethyl Thionocarbamate Collector for Elemental Sulfur in a High-Sulfur Residue
نویسندگان
چکیده
O-isopropyl-N-ethyl thionocarbamate (IPETC) collector was used to selectively recover elemental sulfur from a high-sulfur residue, and its flotation performance, structure–property relationship adsorption mechanism were studied. The raw ore test showed that IPETC displayed superior performance the compared with sodium ethyl xanthate (SEX) ammonium dibutyl dithiophosphate (ADDTP) collectors. Pure mineral experiments further demonstrated among three collectors, had strongest collecting power optimum selectivity towards sulfur. research based on density functional theory (DFT) calculation supported above conclusion. analysis manifested surface chemical process by separately generating normal covalent bond between carbonyl S atom backdonation O atom, which confirmed FTIR spectrum result. exhibits excellent ability for therefore it has bright application prospects.
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ژورنال
عنوان ژورنال: Metals
سال: 2021
ISSN: ['2075-4701']
DOI: https://doi.org/10.3390/met11050727