銅熔體覆蓋保護(hù)與熔煉損耗機(jī)制研究
[Abstract]:In order to solve the problems of large consumption of covering agent (charcoal), high metal loss and heavy melt pollution in copper smelting, oxygen free copper samples were prepared by high temperature resistance furnace in nitrogen atmosphere. X-ray diffraction (XRD),) was used to prepare the samples. The slag structure, composition, morphology and copper content in solid alumina film covering agent, borax cryolite covering agent, borax and carbon black covering agent were studied by scanning electron microscopy (SEM) and (SEM). The effects of different covering agents on the composition of copper melt and slag were studied, which provided theoretical support for the study of reducing metal loss and charcoal consumption in copper smelting. By XRD characterization, it was found that the phase of smelting slag formed by covering agent and solid alumina membrane covering agent was CuO,Cu_2O, borax cryolite covering agent, which was formed by CuF_2,Cu_2O,Cu (OH) _ 2. Na_3AlF_6 and other phases, borax, Al_2O_3,CuO and solid carbon are the main phases of smelting slag formed by borax carbon black covering agent. By SEM characterization, it was found that the covering agent with different components had protective effect on pure copper smelting, and the phase of slag and metal loss in slag varied with different component schemes. Among them, borax-carbon black smelting slag contains very high copper, metal loss.
【作者單位】: 新疆大學(xué)物理科學(xué)與技術(shù)學(xué)院;西安交通大學(xué)能源動(dòng)力與工程學(xué)院;
【基金】:新疆維吾爾自治區(qū)科技廳高技術(shù)發(fā)展計(jì)劃項(xiàng)目(201515106) 國(guó)家自然科學(xué)基金項(xiàng)目(51661031;11264037)資助
【分類(lèi)號(hào)】:TG291
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