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新疆土根曼苏铜矿工艺矿物学研究 总被引:1,自引:1,他引:0
新疆土根曼苏铜矿为同生层控砂岩型矿床。为确定合理的选矿工艺流程,运用多种手段,对其进行了系统的工艺矿物学研究。查明了矿石的化学组成、矿物组成、铜矿物的粒度特征、工艺特征和主要矿物的磨矿解离特征,并对主要元素的赋存状态及在选矿流程中的走向、影响选矿回收指标的工艺矿物学因素进行了全面分析。 相似文献
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通过对南芬赤铁矿矿石的化学组成、矿物组成及相对含量、矿石的结构构造、嵌布特征以及矿石工艺粒度组成的系统研究,阐明了影响选矿工艺的矿物学因素,并提出了适合该矿石的选矿工艺流程。 相似文献
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利用化学多元素分析、化学物相分析、光学显微镜等综合手段,对山西代县某磁铁矿型矿石的化学组成、矿物组成及相对含量、矿石的结构构造以及矿石矿物工艺粒度组成进行了分析,探讨了矿物赋存状态及嵌布特征,指出影响选矿工艺的矿物学因素,并提出改善铁矿选矿指标应从矿石稳定性和优化磨矿工艺入手。 相似文献
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利用化学多元素分析、化学物相分析、光学显微镜、扫描电镜等综合手段,研究某金矿的工艺矿物学特征。查明了矿样的化学组成、矿物组成、嵌布特征和粒度特征,阐明影响选矿工艺矿物学因素,并提出了提高该金矿选别指标的途径。 相似文献
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高压辊磨机在矿物加工领域的应用 总被引:13,自引:1,他引:12
结合国内外一些典型的工业实例,从金刚石矿粉碎、铁矿石加工、有色和贵金属矿石粉碎3方面综述了高压辊磨机在矿物加工领域的应用进展和现状,并分析了高压辊磨机在矿物加工领域的发展趋势。 相似文献
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对巫山桃花鲕状赤铁矿矿石的结构和构造、矿物组成、嵌布特征、主要元素的赋存状态和分布规律等进行研究。研究结果表明,矿石中有含铁金属矿物、硫化物、磷酸盐、非金属脉石矿物4类共12种矿物,矿石中对铁回收率影响最大的矿物是赤铁矿和赤褐铁矿。矿石中的赤铁矿虽含量低,但矿物较纯,是提高铁精矿品位的积极因素,需重视其回收。赤褐铁矿与脉石矿物紧密嵌布难以解离,是影响铁回收率的主要因素。如在选矿中以赤褐铁矿为主体的鲕粒为选铁对象,可降低磨矿细度,减少泥级产率和铁的流失,是一个有益的探索方向。 相似文献
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我国钼矿石资源特点及其选矿技术进展 总被引:2,自引:1,他引:1
介绍了我国钼资源的特点及现有选矿技术进展。在收集大量资料的基础上,从钼矿石选矿的新药剂、设备及高级钼精矿的生产方面总结了钼资源开发利用中所取得的成就及技术进展。 相似文献
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本文叙述了镜铁山镜-菱-褐铁矿的选矿研究。结果表明,采用强磁选、强磁选-阳离子反浮选、磁化焙烧磁选等方法均能获得较好的技术指标。铁精矿品位不高与夹杂的白云石不易除去有关。 相似文献
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Mixed sulphide-oxide lead and zinc ores are most often found in the transition, and occasionally in the oxidised, zones of lead-zinc ore-bodies. They are of great importance because there are numerous unexploited or abandoned reserves of these ores in the world.However they present difficulties for conventional mineral processing due to complex mineralogy. In this paper, the specific problems associated with these types of ores are described and methods for solving these problems, combining economic and technical considerations, are discussed.The results of experiments carried out at laboratory scale are presented, in which the dissolution of mixed ore in sulphuric acid without oxidising agents was investigated. The results show the feasibility of zinc recovery from mixed sulphide-oxide lead and zinc ores, which underlines the potential of this approach. We also propose a conceptual flow diagram for the hydrometallurgical processing of these ores. 相似文献
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Although mineral carbon sequestration (MCS) has several advantages over other carbon storage techniques, an economic process for MCS has not yet been developed. To reduce costs, it is suggested that MCS be combined with other processes and that waste products be used as feedstock. A process is proposed where ultramafic nickel ores are treated with microwave radiation to convert serpentine, the primary gangue mineral, to olivine. It is hypothesized the conversion of serpentine to olivine in ultramafic nickel ores may improve the mineral processing of these ores, and increase the carbon storage capacity of the flotation tailings. The microwave heating characteristics of ultramafic nickel ores, and the mineralogical changes that occur as a result of microwave treatment, are described in this paper. Ultramafic nickel ores were found to heat well in response to microwave radiation and the temperatures achieved were sufficient to convert serpentine to olivine. Microwave treatment was also found to convert pentlandite, the valuable nickel mineral, to other Fe–Ni–S minerals. 相似文献