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Yunnan cassiterite - sulfide ore , beneficiation test study

Author: SunYuXiu
Tutor: ZhouPing
School: Kunming University of Science and Technology
Course: Mineral Processing Engineering
Keywords: Cassiterite sulfide ore Kibbled selected Flotation desulfurization Grading into the shaker
CLC: TD952
Type: Master's thesis
Year: 2009
Downloads: 89
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Abstract


Rich in resources of tin ore cassiterite sulfide ore reserves are mined mostly sulfide ore cassiterite. Cassiterite sulfide ore types, associated types of useful minerals, comprehensive utilization of high-value, has a high economic value and the value of academic research. In this thesis, cassiterite sulfide ore in Yunnan process mineralogy of the nature of the study based on the analysis of different process test and process, to examine effective process to improve the recovery rate as well as explore various craft effective measures to improve the recovery rate. Because the ore cassiterite multi is the aggregate of cassiterite monomer aggregate particle size is not large. Grinding process when the aggregates dissociate easily lead to the dissociation between the aggregate internal cassiterite monomer, eventually leading to dissociation cassiterite monomer fine particle size, particle size, and cassiterite monomer granularity basically the same; ores containing a variety of metal elements, such as copper, lead, zinc, and other harmful elements arsenic. The mine belongs difficult selected cassiterite sulfide ore. The re-election the cassiterite beneficiation methods, this paper re-election. First explore different grind size the shaker directly re-election and grading into a shaker sorting test. Sulfides in the ore cassiterite fragile features, has seriously affected the recovery of cassiterite. According to the nature of the ore, testing to determine the floating - Re joint process, flotation desulfurization can tin more enriched in the flotation tailings, can reduce the impact of such sulfides on the re-election of Shaker, but because of cassiterite with The sulfide ore dense symbiotic relationship, resulting in, or the loss of part of the tin flotation foam, this part of the tin recovery should be considered in future research work. The main direction of the research for the study. Tailings flotation desulfurization After grinding and separation and classification of the stage of tailings into the shaker sorting tin grade and recovery has been markedly improved, the study results show that: (1) re-election is the main method of sorting mine, but sulfides on The re-election of great influence; (2) kibble selected, could get as early take, can be lost as early as lost, multi-product structure. Pre-prolapse sulfide minerals is to improve the the tin concentrate grade and recovery, and to simplify the process, an effective way to reduce the cost of production; (3) the cassiterite sulfide ore using the kibbled flotation desulfurizing a flotation tailings grading into shaker election do better process metrics: ore containing tin 2.34%, output of tin concentrate containing 30.14% tin, tin recovery rate was 39.56%; rich in ore containing 4.77% tin, tin recovery rate was 22.74%; 2.2% of the poor in ore containing tin, tin recovery rate of 20.84%, it is the product of three levels of 83.14% total recycled tin. (4) cassiterite fine disseminated the main factors affecting the recovery rate, to further increase the recovery rate of high grade tin concentrate, follow-up work should focus on the recovery of the fine-grained cassiterite.

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CLC: > Industrial Technology > Mining Engineering > Beneficiation > Metallic Ore Dressing > Nonferrous metal ore beneficiation
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