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The ability of xanthate to collect is related to the length and heterogeneity of the hydrocarbon chain in the non-polar part of the molecule. Hydrocarbon chain growth (ie, an increase in the number of carbon atoms) increases the ability to capture, while hydrocarbon chains are short and the ability to capture is weak. When the hydrocarbon chain is too long, its selectivity and solubility are reduced. Therefore, the hydrocarbon chain is too long, which may reduce the trapping effect of the agent. The commonly used xanthine hydrocarbon chain has 2 to 5 carbon atoms . Effect of hydrocarbyl branching: For short hydrocarbon chain xanthate, the normal body is not as good as the isomer; however, when the hydrocarbon chain grows to a certain extent (such as C 5 or higher), the isomer is not as good as the normal, especially the branch This is especially true for those close to the polar base.