Chen، نويسنده , , Shaohua and Gong، نويسنده , , Wenqi and Mei، نويسنده , , Guangjun and Xiong، نويسنده , , Ling and Xu، نويسنده , , Nian، نويسنده ,

3268106

Quantitative structure–biodegradability relationship of sulfide mineral flotation collectors

9926

12 physicochemical and quantum chemical parameters of 7 kinds of sulfide mineral flotation collectors are calculated. On the basis of the experimental data, a QSBR model including parameters, such as ELUMO, μ, TE, (ELUMO − EHOMO) and (ELUMO − EHOMO)2 was established for Kb prediction by multiple linear regression. Results showed that the calculated data fitted well with the experimental values, indicating the reliable prediction and good robustness of the developed model, which can be used in Kb prediction of analogs. According to analysis of the model, the electrical parameters were the dominant factors affecting the aerobic biodegradability of sulfide mineral flotation collectors. However, the steric parameters and hydrophobic parameters had a small impact on biodegradability of the collectors.

112

Sulfide mineral flotation collectors , Quantitative structure–biodegradability relationship (QSBR) , aerobic biodegradation

Studia Iranica

115

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