论文部分内容阅读
用铜铁试剂、8-羟基喹啉、α-苯偶姻肟及二乙基二硫代氨基甲酸钠等多种螯合剂进行了选别氧化铜矿的实验室试验。在所试验的四种捕收剂中,发现二乙基二硫代氨基甲酸盐可使回收率和品位都达到较好水平,与其他三种捕收剂相比,药剂消耗较低。所有四种捕收剂对铜均有良好的选择性,均能获得满意的精矿。吸附研究显示,捕收剂在矿物表面上的吸附是一种真正的化学反应。与二乙基二硫代氨基甲酸盐的络合性质的研究表明,矿物表面上的每一个铜原子与两个二乙基二硫代氨基甲酸盐分子络合。研究了药剂浓度、矿浆pH、叶轮转速等因素的影响。
Copper oxide reagent, 8-hydroxyquinoline, α-benzoin oxime and diethyldithiocarbamate and other chelating agents were selected copper oxide laboratory experiments. Among the four collectors tested, diethyl dithiocarbamate was found to achieve good recovery and grade, with lower drug consumption compared to the other three collectors. All four collectors have a good selectivity for copper, both to obtain satisfactory concentrates. Adsorption studies show that the collector’s adsorption on the mineral surface is a true chemical reaction. Studies with complex properties of diethyldithiocarbamate show that each copper atom on the mineral surface is complexed with two diethyldithiocarbamate molecules. The effects of chemical concentration, pulp pH, impeller speed and other factors were studied.