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作者考察了数种低分子量有机络合剂对已被硫酸铜活化的黄铁矿的抑制作用,发现酒石酸可使已活化黄铁矿与辉铜矿的浮选行为大异,从而成功地分离了该二矿物的人工混合样;又借助俄歇电子能谱、紫外、红外光谱及顺磁共振等现代仪器在酒石酸—Cu~(2+)络合物体系的组成、仪器测试结果及矿物浮选行为之间建立了对应关系,由此认为:酒石酸在已活化黄铁矿表面吸附并生成比乙基黄原酸亚铜更稳定的表面络合物,从而增强表面亲水性,减少黄药吸附量;而对辉铜矿的作用则不明显,因此导致两种矿物易于浮选分离。本研究表明在此领域运用低分子量有机络合剂作调整剂是很有希望的,并提出了寻找更经济有效的有机抑制剂的方向。
The authors investigated the inhibitory effect of several low molecular weight organic complexing agents on pyrite activated by copper sulfate. It was found that tartaric acid separated the flotation behavior of activated pyrite and chalcopyrite successfully The artificial mixture of the two minerals; and by means of Auger electron spectroscopy, ultraviolet, infrared spectroscopy and paramagnetic resonance and other modern instruments in the composition of tartrate - Cu ~ (2+) complex system, the instrument test results and mineral flotation Thus, it is concluded that tartaric acid adsorbs on the surface of activated pyrite and produces a more stable surface complex than cuprous ethyl xanthate, thereby enhancing the surface hydrophilicity and reducing the xanthate adsorption The role of chalcopyrite is not obvious, resulting in easy flotation separation of the two minerals. This study shows that the use of low molecular weight organic complexing agents as regulators in this field is promising and a new direction for finding more cost-effective organic inhibitors has been proposed.