發(fā)布時(shí)間：2018-04-19 18:02

  本文選題：鐵閃鋅礦 + 活化劑��； 參考：《昆明理工大學(xué)》2017年碩士論文

【摘要】：對(duì)含鋅的多金屬礦石,傳統(tǒng)的分選工藝采用CuSO4作為鋅礦物的活化劑,但是CuSO4對(duì)礦物中的硫化鐵礦物也能起到活化作用,即其活化的選擇性不強(qiáng),從而就會(huì)影響選礦所得的鋅精礦及其一些有價(jià)的稀貴金屬的選別指標(biāo),進(jìn)而影響選廠的效益。因此,研制鋅礦物的新型高效活化劑一直以來(lái)都是國(guó)內(nèi)外學(xué)者研究的熱點(diǎn)之一,此項(xiàng)研究對(duì)于鋅礦物的活化浮選具有重要的理論意義與實(shí)際價(jià)值。童雄教授團(tuán)隊(duì)經(jīng)多年研究,開(kāi)發(fā)出了新型高效的鐵閃鋅礦活化劑X-43,在低堿條件下此新型高效活化劑可實(shí)現(xiàn)針對(duì)性的活化鐵閃鋅礦,而對(duì)鐵閃鋅礦選礦指標(biāo)不利的其他礦物有抑制作用。該鐵閃鋅礦的新型高效活化劑已成功取代CuSO4,在華聯(lián)鋅銦股份有限公司新田選廠實(shí)現(xiàn)了工業(yè)化應(yīng)用。鐵閃鋅礦中含鐵量的不同,其自身性質(zhì)也會(huì)不同,為了能讓該新型高效活化劑的活化能力適應(yīng)不同的鐵閃鋅礦,童雄教授團(tuán)隊(duì)經(jīng)過(guò)研究對(duì)此新型高效活化劑成分升級(jí),研制出新一代新型高效活化劑X-45。為了驗(yàn)證X-45能否適應(yīng)于不同鐵閃鋅礦的活化浮選及是否可以替代原新田選廠采用的鐵閃鋅礦的活化劑X-43,本文針對(duì)上述問(wèn)題,以鐵閃鋅礦活化劑硫酸銅和X-45為主要研究對(duì)象,分別進(jìn)行了純礦物試驗(yàn)、人工混合純礦物試驗(yàn)和實(shí)際礦石試驗(yàn),并采用XRD、接觸角、疏水聚團(tuán)、化學(xué)分析等手段進(jìn)行了分析檢測(cè),通過(guò)以上試驗(yàn)及檢測(cè)可以得出一下結(jié)論:1.純礦物試驗(yàn)結(jié)果可知,在最佳藥劑制度條件下,X-45對(duì)鐵閃鋅礦的活化效果要強(qiáng)于硫酸銅;2.人工混合純礦物試驗(yàn)結(jié)果可知,X-45對(duì)鐵閃鋅礦的活化效果優(yōu)于硫酸銅且其選擇性較好;3.實(shí)際礦石試驗(yàn)證明,X-45對(duì)鐵閃鋅礦的活化效果優(yōu)于硫酸銅和X-43。此外,接觸角測(cè)定、疏水聚團(tuán)分析都再次證明:新型高效鐵閃鋅礦活化劑X-45的活化能力及選擇性都要優(yōu)于硫酸銅。針對(duì)華聯(lián)鋅銦股份有限公司新田選廠的原礦和選銅尾礦,參照選廠的磨礦細(xì)度、選礦流程和藥劑制度,對(duì)選廠原礦采用“一粗-一掃-三精”(優(yōu)先選銅作業(yè))和“二粗-一掃-四精-一精掃”(活化選鋅作業(yè))的開(kāi)路流程,保持選銅作業(yè)試驗(yàn)條件不變,采用新型高效活化劑X-45作為選鋅作業(yè)的活化劑,可獲得鋅精礦品位和累計(jì)回收率分別為45.55%和94.22%;采用硫酸銅作為選鋅作業(yè)的活化劑,可獲得鋅精礦品位和累計(jì)回收率分別為43.63%和90.05%。對(duì)選廠銅尾礦采用“一粗-二掃-三精選鋅作業(yè)”的閉路工藝流程,采用新型高效活化劑X-45作為選鋅作業(yè)的活化劑,可獲得鋅精礦品位和回收率分別為48.02%和98.11%;采用硫酸銅作為選鋅作業(yè)的活化劑,可獲得鋅精礦品位和回收率分別為46.01%和98.15%。通過(guò)以上試驗(yàn)證明X-45對(duì)鐵閃鋅礦的活化更具有優(yōu)勢(shì)。
[Abstract]:For zinc bearing polymetallic ores, CuSO4 is used as activator of zinc minerals in traditional separation process, but CuSO4 can also activate iron sulfide minerals, that is, its selectivity is not strong.This will affect the concentration index of zinc concentrate and some valuable precious metals, and then affect the efficiency of the concentrator.Therefore, the development of new high efficient activators for zinc minerals has always been one of the hot topics of domestic and foreign scholars. This research has important theoretical and practical value for activated flotation of zinc minerals.After many years of research, Professor Tong Xiong's team has developed a new type of high efficiency sphalerite activator X-43, which can be used to activate sphalerite in low alkali condition.Other minerals which are unfavorable to the mineral concentration index of marmatite are inhibited.The new high efficiency activator of sphalerite has successfully replaced CuSO _ 4 and has been applied in Xintian separation plant of Hualian Zinc and Indium Co., Ltd.In order to adapt the activation ability of the new high efficiency activator to different iron sphalerite, Professor Tong Xiong's team has studied and upgraded the composition of the new high efficiency activator.A new generation of high efficient activator X-45 was developed.In order to verify whether X-45 can be adapted to the activated flotation of different sphalerite and whether it can replace the activator X-43 used in the former Xintian dressing Plant, the main research object of this paper is copper sulfate and X-45, which are active agents of sphalerite.The pure mineral test, artificial mixed pure mineral test and actual ore test were carried out, and XRD, contact angle, hydrophobic agglomeration and chemical analysis were used to analyze and detect.The results of pure mineral test show that the activation effect of the iron sphalerite is better than that of cupric sulfate 2 under the optimum reagent condition.The experimental results of artificial mixed pure minerals show that the activation effect of ZX-45 on sphalerite is better than that of copper sulfate and its selectivity is better than that of copper sulfate.The actual ore tests show that the activation effect of X-45 on sphalerite is superior to that of copper sulfate and X-43.In addition, the contact angle measurement and hydrophobic cluster analysis all proved that the activation ability and selectivity of a new type of high efficient sphalerite activator X-45 were better than that of copper sulfate.According to the raw ore and copper tailings of Xintian separation plant of Hualian Zinc and Indium Co., Ltd., the grinding fineness, the processing process and the reagent system of the dressing plant are consulted.The open-circuit process of "one coarse, one sweep and three fine" (preferential copper separation) and "two coarse, one sweep, four fine and one fine sweep" (activated zinc separation operation) is adopted in the raw ore of the separation plant, and the test conditions of copper separation operation are kept unchanged.The grade and cumulative recovery of zinc concentrate were 45.55% and 94.22% respectively when X-45 was used as activator of zinc separation, and 43.63% and 90.05% of zinc concentrate grade and accumulative recovery were obtained by using copper sulfate as activator.The closed circuit process of "one coarse, two sweep and three cleaning zinc" was adopted for copper tailings in the dressing plant, and a new high efficiency activator X-45 was used as the activator for zinc separation.The grade and recovery of zinc concentrate were 48.02% and 98.11%, respectively, and the grade and recovery of zinc concentrate were 46.01% and 98.15%, respectively.It is proved that X-45 has more advantages on the activation of sphalerite.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TD923;TD952

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