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烧绿石(Ca,Na)2Nb2O6(OH,F,O),铌含量超过50%,属于高含铌矿物,全球约95%的铌产自烧绿石中。巴西是烧绿石资源大国,我国约75%的烧绿石进口于巴西,我国90%铌依赖于进口。中国烧绿石资源量少,没有烧绿石工业生产案例,本文从烧绿石的矿物结构为出发点,结合国内外的选矿生产与试验结果介绍了烧绿石的选矿方法与浮选药剂,总结了国内外部分烧绿石选厂的选矿工艺流程,为烧绿石的综合利用提供了技术支撑。 相似文献
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针对白钨矿矿石性质,本试验研究采用重选法、重选—浮选联合工艺和单—浮选法进行白钨矿选矿工艺试验研究,全流程试验获得钨精矿品位(WO3)分别为71.90%、69.38%、71.78%,回收率分别为83.67%、87.71%、90.19%,三种试验方案在技术均可行,但以浮选指标最优. 相似文献
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Tin has many important properties and thus it finds wide applications in metal coating, tin plating, alloying, soldering, and plumbing, as well as in the electronic, electrical, and organotin compounds industries, etc. The metal is chiefly produced from the mineral cassiterite, which is generally beneficiated following gravity concentration and flotation techniques. Cassiterite beneficiation has contributed significantly to the understanding of fundamentals in mineral processing. In particular, the influence of particle size in gravity concentration and flotation techniques has been revealed. Basic research on flotation, such as the development of specific surfactants and the adsorption behaviour of these onto mineral surfaces has been performed. In the present review paper, an attempt has been made to summarize the role of particulate properties in gravity concentration and adsorption behaviour of flotation surfactants with regard to cassiterite. Past tin beneficiation plant practices are reviewed in detail including process flowsheet developments which have taken place over time. 相似文献
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Institute of Geology Siberian Branch, Academy of Sciences of the USSR, Novosibirsk. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 1, pp. 106–109, January-February, 1992. 相似文献
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针对目前某些多个选矿厂自动化维护系统易出故障的窘境,分析了选矿厂自动化系统维护的特点,设计了一套选矿厂自动化维护系统,以利于规范维护流程,强化维护管理,提高经济效益。 相似文献
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