SYNERGISTIC ACTIVATION OF CHELATING AGENT ON XANTHATE DURING THE FLOTATION OF REFRACTORY COPPER OXIDIZED ORES
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition1994年第1期
论文作者：徐晓军 刘邦瑞
文章页码：89 - 97
摘 要：<正>Abstract:For realizing the effective flotation of refractory copper ox-idized ores and developing the activation-flotation theory ,the influencesof nine different organic chelating agents on xanthate collection power andits adsorption characteristies were studied in the flotation of malachite andchrysocolla representatively selected by means of XPS, IR, absorbed quanti-ty measurements and flotation tests.For easily-dissolved malachite fiotation, a small amount of chelatingagent can obviously enhance xanthate collecting power and,make malachitefloated easily, and so reduces the consumption of xanthate. For hard-dis-solved chrysocolla ,chelating agent is able to increase its recovery to 90%,but the chelating agent consumption is high. Chelating agent and xanthatecan produce synergistic adsorptions, which follow Freundlich‘s adsorptionequation on malachite and Chrysocolla surfaces. The high chemical activityof chelating agent and its synergistic activation on xanthate are the key toimproving xanthate colle
徐晓军，刘邦瑞
摘 要：<正>Abstract:For realizing the effective flotation of refractory copper ox-idized ores and developing the activation-flotation theory ,the influencesof nine different organic chelating agents on xanthate collection power andits adsorption characteristies were studied in the flotation of malachite andchrysocolla representatively selected by means of XPS, IR, absorbed quanti-ty measurements and flotation tests.For easily-dissolved malachite fiotation, a small amount of chelatingagent can obviously enhance xanthate collecting power and,make malachitefloated easily, and so reduces the consumption of xanthate. For hard-dis-solved chrysocolla ,chelating agent is able to increase its recovery to 90%,but the chelating agent consumption is high. Chelating agent and xanthatecan produce synergistic adsorptions, which follow Freundlich‘s adsorptionequation on malachite and Chrysocolla surfaces. The high chemical activityof chelating agent and its synergistic activation on xanthate are the key toimproving xanthate colle
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