内蒙古某含铜铅锌金矿多金属分离选矿试验研究

针对内蒙古某含铜铅锌金矿矿石性质,提出了铜铅锌浮选—尾矿氰化浸金工艺流程。该文重点探讨了铜铅锌浮选分离部分,为该金矿资源的综合利用提供依据。通过铜铅混浮—铜铅分离—铜铅尾矿浮选锌的闭路流程,获得了相对较好的试验指标:铜精矿铜品位20.79%、铜回收率64.94%,铅精矿铅品位56.68%、铅回收率62.16%,锌精矿锌品位40.54%、锌回收率57.22%。     

难选低品位铜铅锌多金属矿选矿试验研究

新疆某铜铅锌矿属于难选低品位多金属硫化矿,原矿铜品位0.15%、铅品位3.52%、锌品位1.24%。针对该矿石性质,试验采用铜铅混合浮选—铜铅分离—铜铅尾矿选锌—锌尾矿再磁选铁的浮选流程,可获得铜品位22.30%、铜回收率68.63%的铜精矿,铅品位58.67%、铅回收率86.83%的铅精矿,锌品位42.85%、锌回收率65.32%的锌精矿,及品位67.0%的铁精矿,全铁回收率62.97%(对磁性铁的回收率为97.52%),闭路产品全部达到国家质量标准要求。     

陕西某铅锌矿选矿试验研究

研究了采用铅、铜部分混合浮选,铅、锌依次浮选流程分选陕西某铅锌矿,确定了最佳药剂制度。在最佳药剂制度下,获得铜品位24.09%的铜精矿,铅品位68.47%的铅精矿,锌品位55.72%的锌精矿,铜、铅、锌回收率分别为43.22%、31.32%和94.85%。     

青海某铜铅锌多金属矿选矿工艺研究

针对青海某铜铅锌多金属矿,进行了不同类型捕收剂对铜铅锌浮选分离影响的试验,重点考察了新型捕收剂4037B、P5100C、QBSC的选别效果。结果表明：P5100C和QBSC更有利于铜、铅分离,在最佳条件下,采用铜快速浮选—铜铅混选—铜铅再磨分离—锌浮选流程,获得铜品位35.56%、铜回收率75.23%的铜精矿;铅品位45.02%、铅回收率71.92%的铅精矿;锌品位41.49%、锌回收率72.58%的锌精矿;含铜20.14%、含铅8.90%、含锌28.38%,铜回收率11.93%、铅回收率6.77%、锌回收率11.81%的混合精矿。全流程铜总回收率97.94%,铅总回收率96.62%,锌总回收率92.64%。     

氰化尾渣综合回收试验研究

辽宁某氰化尾渣金品位2.01 g/t,银品位36.23 g/t,铜、铅、锌品位分别为0.33%、1.91%、3.01%。针对该氰化尾渣进行铜铅锌混合浮选试验及优先选铅—尾矿选锌浮选试验。铜铅锌混合浮选试验可获得金品位13.72 g/t、银品位281.70 g/t、铜品位3.63%、铅品位16.01%、锌品位36.92%,金、银、铜、铅、锌回收率分别为50.09%、57.22%、80.69%、61.33%、90.88%的混合精矿;优先选铅—尾矿选锌浮选试验可获得铅品位48.95%、铅回收率52.29%的铅精矿,锌品位43.21%、锌回收率89.45%的锌精矿,铅精矿中金、银、铜品位分别为54.02 g/t、891.42 g/t、5.92%,锌精矿中金、银、铜品位分别为2.43 g/t、134.79 g/t、2.19%,总金、总银、总铜回收率分别为62.39%、73.43%、77.76%。选别指标良好,为该类氰化尾渣资源的综合回收利用提供了参考依据。     

难选铜铅锌混合矿石选矿试验研究

针对某细粒嵌布、氧化程度较高的难选铜铅锌混合矿石,采用部分混合优先浮选,即铜铅混浮,再铜、铅分离,铜铅尾矿选锌的浮选工艺流程进行铜、铅、锌选别试验研究。其结果表明:在最佳条件下,闭路试验获得了铜品位38.63%、铜回收率42.53%的铜精矿,铅品位65.37%、铅回收率53.13%的铅精矿,锌品位57.79%、锌回收率30.85%的锌精矿,为多金属混合矿石的回收利用提供借鉴。     

某铜铅混合精矿铜铅分离试验研究

针对某铜铅混合精矿的矿石性质,确定了采用混合精矿浓缩脱药后,以重铬酸钾和JY405作为铅的抑制剂进行抑铅选铜。经一次粗选、四次精选、一次扫选浮选工艺流程,获得了铜品位23.06%、含铅4.69%、铜回收率92.27%的铜精矿,铅品位71.36%、含铜0.42%、铅回收率98.59%的铅精矿。     

内蒙古某铅锌多金属矿石选矿试验研究

针对内蒙古某铅锌多金属矿石,研究了优先浮选铜铅混合精矿,尾矿浮选锌,铜铅精矿再浮选分离铜、铅。结果表明:适宜条件下,分别得到铅品位51.38%、锌品位48.57%、铜品位14.82%的铅精矿、锌精矿和铜精矿,铅、锌、铜回收率分别为91.32%、84.83%和54.45%,银在铅、锌精矿中的回收率为82.12%。     

四川某高硫铜铅锌硫化矿选矿试验研究

对四川某复杂高硫铜铅锌矿进行了工艺矿物学研究后,采用部分混合浮选流程,铜铅混浮—铜铅分离—混浮尾矿选锌,最终获得铜品位17.5%,回收率为51.80%的铜精矿,铅品位为60.10%、回收率为79.51%的铅精矿,锌品位为47.01%、回收率为78.64%的锌精矿,硫品位为38.92%、回收率为72.64%的硫精矿,同时铜铅分离生产验证试验取得良好指标。     

云南某含大量磁黄铁矿的铜铅锌多金属硫化矿选矿工艺研究

针对原矿中含大量磁黄铁矿的特点,先磁选脱出磁黄铁矿及其它强磁性矿物,再混合浮选方铅矿、黄铜矿,然后浮选闪锌矿、黄铁矿。铜铅混合精矿再进行铜铅分离;浮选尾矿重选回收锡石。该流程方案可获得较好的铜铅锌硫分选指标,其中铜精矿铜品位11.26%,回收率29.25%;铅精矿铅品位45.26%,回收率71.20%;锌精矿锌品位45.97%,回收率83.00%。     

熔炼次数对M17返回料合金成分、组织和性能的影响

实验结果表明,M17铸造高温合金(%:0.16C、8.79Cr、5.79A1、4.93Ti、3.29Mo、15.20Co、0.78V、0.015B、0.073Zr、0.002S、0.001P、0.001 1O、0.001 0N)经25 kg真空感应炉返回重熔后,Si含量随重熔次数的增加而略有增加,合金中主要元素和其它杂质元素S、P、H的含量变化不大,而氧、氮略有增加;合金中初生碳化物由新合金中的草书体逐渐向返回合金块状转变,初生碳化物的遗传性堵塞合金凝固时的补缩通道,使返回料合金的疏松倾向增大,高温塑性下降较大。     

China's Major Non-ferrous Metals Imports & Exports

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Zinc Production by Province in 2014

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80% of Chinese Firms Purchasing Overseas Mines Ended up in the Red

<正>Minmetals Resources acquired the world’s largest copper mine under construction for USD5.85 billion.One after another,listed companies Jien Nickle,China Molybdenum and Chihong Zinc and Germanium raised money to get involved in overseas mining projects…SOEs and private enterprises are engaged in a frenzy of overseas mine purchasing.A reporter with Economic     

Copper Processing Profit Dropped Sharply,Copper Consumption Will Face Impact in the Second Half of the Year

正Judging from China’s copper consumption field,the biggest consumption unit is electric power,which accounts for 47%of total consumption;it is followed by light industry sector,including household electrical appliance,machinery,durable goods and hardware etc,which accounts for 22%of total consumption;followed by transportation field,     

Central Geological Prospecting Fund Newly Added 16.47 Million Tonnes of Bauxite in 2013

正In 2013,the Central Geological Prospecting Fund(CGPF)Project newly discovered 15 ore fields,including 3 large above ore fields,and 5medium sized ore fields.The reporter learned from the recently published"Annual Report of Central Geological Prospecting Fund Project(2013)"that,from 2006 to 2013 the CGPF     

Manufacturers of Copper Tube for Central Air Conditioner Use Face Mounting Pressure in the Final Quarter of the Year

正This year,the investment growth rate of real estate industry continued to slow down,sold area of commercial housing also dropped significantly,which brought huge pressure to the domestic air conditioning manufactures.In the first half of the year,by relying on high growth in national financial expenditure,along with investment in public infrastructure     

Xinjiang Ranks No.1 in Production of Primary Aluminum in China

正Kang Yi,Honorary Chairman of China Nonferrous Metals Industry Association,said recently at the Forum on Development of the Non-ferrous Metals Industry in Central and Western China held in Zhengzhou that,as more and more electrolytic aluminum factories in Xinjiang came into operation,the electrolytic aluminum output of Xinjiang had reached2,275,000 tons in the first 7 months this year,     

Shenhuo Coal Industry and Electricity Power Completed800,000 t/a Aluminum Project in Xinjiang

正"Xinjiang project has been completed according to schedule,but total completion and total start of production are two different concepts,after completion it still needs a gradual process of reaching production target."On the morning of November 3,Shenhuo Coal Industry and Electricity Power told investors the above statement on the investor interaction platform.     

Guangdong Metal Transaction Center has Become the Second Largest Precious Metal Transaction Platform Nationwide

正The reporter learned from Guangdong Province Precious Metal Transaction Center that in 2013the Center maintained healthy development momentum,and had become the second largest precious metal transaction platform in China in terms of market size;currently Guangdong is quickening steps of financial innovation for the Center,aiming to build a transaction center with international core competitiveness.