Micro-floatability of rutile and zircon with soap and amine type collectors
Micro-floatability of rutile and zircon with soap and amine type collectors
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发表时间：
2001
影响因子：
1.5
通讯作者：
Ç. Hoşten
中科院分区：
文献类型：
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作者：
Ç. Hoşten
在微浮选装置上，研究了以油酸钠和氢化牛油胺醋酸盐为捕收剂，在3种捕收剂和2种聚丙二醇型起泡剂的浓度下，在pH 2 ~ 12的宽范围内，对金红石和锆英石纯重砂矿物的单矿物可浮性的影响。金红石在pH 6时与油酸钠一起产生峰值可起泡性，并且与胺捕收剂一起在从2至8的宽pH范围内相当好地漂浮。当pH>8时，金红石的可浮性急剧恶化。两种捕收剂对锆英石的最大可浮性范围为pH 6 ~ 10，pH>10时可浮性急剧下降。在酸性介质中，pH低于6时，锆石的可浮性随pH的降低而急剧下降。结果进行了讨论，鉴于收集器物种分布作为pH值的函数，建议的收集器的吸附机制。矿物的上临界浮选pH值似乎是足够不同的，以表明矿物在碱性介质中与测试的两种捕收剂的差异浮选的潜力。
Single-mineral floatability of pure, heavy sand rutile and zircon minerals using sodium oleate and hydrogenated tallow amine acetate as collectors was studied by a micro-flotation device over a wide pH range from 2 to 12, at three levels of the collectors and two levels of a polypropylene glycol type frother. Rutile yielded a peak foatability at pH 6 with sodium oleate, and floated reasonably well over a wide pH range from 2 to 8 with the amine collector. An abrupt deterioration of the floatability of rutile was observed at pH>8. The maximal floatability range for zircon was from pH 6 to 10, followed by a sharp decrease at pH>10, with both of the collectors. The floatability of zircon decreased sharply with decreasing pH in the acidic medium, below pH 6. The results were discussed in view of collector species distribution as a function of pH to suggest adsorption mechanisms for the collectors. The upper critical flotation pH values for the minerals seemed to be sufficiently distinct to suggest a potential for the differential flotation of the minerals in the alkaline medium with both of the collectors tested.