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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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Mineralogical study and flotation tests were carried out on the copper-cobalt ore from Haman mine which is composed of mainly copper, cobalt, and iron sulfides. Microscope and X-ray analysis showed that the cobalt minerals consisted primarily of cobaltite [(Co. Fe)As S] and cobalt bloom [(Co, Ni)₃AsO₄]. Quartz, calcite, tourmaline, and hornblende are associated with the ore as gangue minerals. The effects of concentrations of various collectors, regulating reagents, pH, pulp temperatures and densities on the flotation were examined to investigate the optimum flotation conditions of the ore. The experimental results showed that 17％ Cu in the copper concentrate, and 24％ Co in the cobalt concentrate with recoveries of about 70 and 84％ of the copper and cobalt, respectively, could be obtainable. The copper was primarily floated with potassium ethyl xanthate at pH 11 and the cobalt was subsequently floated with potassium amyl xanthate after activation with CuSO₄at pH 6.
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