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摘要:
浮选药剂的研究是金红石浮选技术发展的重要方向。通过单矿物浮选试验、扫描电镜、红外光谱分析、接触角测试及吸附量测试，研究了苯甲羟肟酸、水杨羟肟酸、辛基异羟肟酸对金红石浮选行为的影响以及三种羟肟酸在金红石表面的吸附机理。结果表明：苯甲羟肟酸、水杨羟肟酸、辛基异羟肟酸在pH值分别为6.5、6.5、5.5左右时，对金红石纯矿物具有较好的捕收性能。金红石与三种羟肟酸均发生化学吸附，但苯甲羟肟酸捕收性能最好，回收率达到82%。
Abstract:The research of flotation reagent is the important direction of rutile flotation technology.The influence and mechanism of salicylhydroxamic acid, benzohydroxamic acid and octanohydroxamic acid on the flotation of rutile has been investigated through single mineral flotation experiments, scanning electronic microscope, infrared spectroscopy, contact angle test and reagent adsorption analyses. The results indicated that salicylhydroxamic acid, benzohydroxamic acid and octanohydroxamic acid has good collection performance for rutile pure mineral when pH value is 6.5, 6.5 and 5.5 respectively.Rutile adsorbed hydrophobically with three hydroxamic acids, butthe hydrophobicity of benzylhydroxamic acid was the best, the recovery was 82%.
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Key words:
- collector /
- rutile /
- hydroxamic acid /
- flotation
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表 1 金红石化学成分
Table 1. Chemical composition of rutile
/% 项目 CO2 Na2O TiO2 Al2O3 SiO2 P2O5 Fe2O3 K2O CaO CO2 含量 0.42 0.041 94 0.48 1.7 0.048 1.1 0.063 0.19 0.42 
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