一种比较浮选捕收剂选择性的方法及其验证  

A Method for Comparing the Selectivity of Flotation Collectors and Its Verification

作　　者：王纪镇[1] 邓海波[1] 

机构地区：[1]中南大学资源加工与生物工程学院,长沙410083

出　　处：《有色金属（选矿部分）》2011年第6期60-63,共4页Nonferrous Metals（Mineral Processing Section）

基　　金："十一五"国家科技支撑计划重点项目(2006BAB02B03-3-03)

摘　　要：以基团电负性原理为基础,通过数学推导导出了一种比较浮选捕收剂选择性的方法。其基本点为:当极性基断面尺寸的差量与基团电负性的差量的比值大于断面尺寸与基团电负性减去氧原子电负性数值的二倍的比值,极性基断面尺寸的差别是捕收剂选择性差异的主要原因;当极性基断面尺寸的差量与电负性差量的比值小于断面尺寸与基团电负性减去氧原子电负性数值的二倍的比值,基团电负性的差异是选择性差异的主要原因,进而推导了选择性指数与电负性之间的函数关系式。借助权威文献证明了所提出的选择性比较方法具有可行性。Based on the principle of group electronegativity and through mathematical deduction,a method for comparing the selectivity of flotation collectors is deduced.The fundamental points are： when the ratio of the difference value of polar group diameter and electronegativity is greater than the ratio of polar group diameter and two times of the number of electronegativity minus the oxygen negative electricity,polar group diameter is the main reason for the difference of the selectivity.When the ratio of the difference value of polar group diameter and electronegativity is less than the ratio of polar group diameter and two times of the number of electronegativity minus the oxygen negative electricity,group electronegativity is the main reason.The function expression between selective index and electronegativity is hereby deduced.The method for comparing selectivity is also proven feasible by authoritative literatures.

关 键 词：浮选捕收剂 选择性 比较方法 基团电负性 极性基断面尺寸 

分 类 号：TD923[矿业工程—选矿]