【摘要】：銅、鋅都是重要的金屬材料,隨著人類(lèi)的開(kāi)采使得礦產(chǎn)資源日趨枯竭,礦石亦日趨貧、細(xì)、雜,選礦難度不斷加大,選礦成本越來(lái)越高。雖然多年來(lái)國(guó)內(nèi)外選礦工作者進(jìn)行了大量的研究工作,也取得了一些研究成果。但對(duì)于一些嵌布關(guān)系、成分組成復(fù)雜難選的銅鋅硫化礦石,已有的成熟選礦工藝還難以獲得較為理想的分選指標(biāo)。因此,無(wú)論是從提高企業(yè)經(jīng)濟(jì)效益還是從綜合利用礦產(chǎn)資源方面來(lái)講,研究銅鋅硫化礦的分選對(duì)我國(guó)的銅鋅工業(yè)發(fā)展都有非常重要的意義。論文研究的銅鋅硫化礦石來(lái)自廣西大廠銅坑礦區(qū),該礦石具有銅品位低,砷含量較高,銅礦物嵌布細(xì)度細(xì)且與鋅礦物相互密切共生的特點(diǎn),屬?gòu)?fù)雜難選高砷銅鋅多金屬硫化礦。因此,尋找合理的浮選工藝流程以及浮選藥劑制度對(duì)于成功實(shí)現(xiàn)銅鋅浮選分離非常關(guān)鍵。在工藝礦物學(xué)研究基礎(chǔ)上,針對(duì)礦石性質(zhì)特點(diǎn),制定相應(yīng)的技術(shù)方法和措施,先后進(jìn)行了銅鋅依次優(yōu)先方案、銅優(yōu)先—鋅硫混浮再分離方案以及銅鋅等可浮方案探索,取得指標(biāo)如下：(1)優(yōu)先方案：銅精礦含銅21.30%,銅回收率73.35%；鋅精礦含鋅50.10%,鋅回收率91.61%。(2)優(yōu)先—混浮方案：銅精礦含銅20.65%,銅回收率73.50%；鋅精礦含鋅50.03%,鋅回收率90.91%。(3)等可浮方案：銅精礦含銅18.48%,銅回收率76.56%；鋅精礦含鋅48.79%,鋅回收率93.54%。此外,本論文對(duì)浮選尾礦中錫礦物進(jìn)行了重選回收探索。
[Abstract]:Copper and zinc are important metal materials. With the exploitation of human beings, the mineral resources are becoming more and more exhausted, the ore is becoming more and more poor, fine, miscellaneous, the difficulty of mineral processing is increasing, and the cost of mineral processing is getting higher and higher. Although many years of domestic and foreign mineral processing workers have done a lot of research work, but also made some research results. However, for some copper-zinc sulfide ores with complex composition and difficult to be separated, it is difficult to obtain the ideal separation index by the existing mature mineral processing technology. Therefore, whether from the aspects of improving the economic benefit of enterprises or comprehensive utilization of mineral resources, it is of great significance to study the separation of copper-zinc sulfide ore for the development of copper and zinc industry in China. The copper-zinc sulfide ore studied in this paper comes from Tongkeng mining area in Dachang, Guangxi. The ore has the characteristics of low copper grade, high arsenic content, fine copper mineral distribution and close symbiosis with zinc mineral. Therefore, it is very important to find a reasonable flotation process and flotation reagent system for the successful separation of copper and zinc. On the basis of process Mineralogy research, according to the characteristics of ore properties, the corresponding technical methods and measures are worked out, and the priority scheme of copper and zinc, the scheme of copper priority-zinc-sulfur mixed floatation and the floatation scheme of copper and zinc are explored one after another. The results are as follows: (1) priority scheme: copper concentrate contains 21.30% copper and copper recovery rate is 73.35%; Zinc concentrate contains 50. 10% zinc and zinc recovery is 91. 61%. (2) priority-mixed floatation scheme: copper concentrate contains 20. 65% copper, copper recovery 73. 50%; The zinc content of zinc concentrate is 50.03%, and the recovery rate of zinc is 0991%. (3) the floating scheme of copper concentrate is as follows: copper concentrate contains 18.48% copper, copper recovery 76.56%, zinc concentrate 48.79%, zinc recovery 93.54%. In addition, the gravity separation and recovery of tin minerals in flotation tailings were explored in this paper.
【學(xué)位授予單位】：廣西大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TD952

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