某铜铅锌多金属硫化矿选矿试验研究

对某富含金银等贵金属的复杂铜铅锌多金属硫化矿进行了选矿试验研究。以BK916作铜捕收剂、BK906作铅捕收剂, 采用铜优先浮选-铅浮选-锌硫混合浮选-锌硫分离工艺回收主要有价元素, 获得了铜精矿铜品位24.26%、回收率58.21%, 铅精矿铅品位70.75%、铅回收率86.55%, 锌精矿锌品位51.53%、锌回收率89.44%, 硫精矿硫品位39.84%、回收率38.03%的良好选矿指标; 铜、铅、锌、硫4种精矿产品中金总回收率92.16%、银总回收率89.44%。     

铜铅锌多金属混合精矿浮选分离试验研究

针对徐州某矿业公司经混合浮选-优先浮选流程得到的硫化铜铅锌混合精矿表面附着大量药剂、现场生产无法实现三者分离的问题,进行了浮选分离试验研究。采用脱药-铜铅混合浮选工艺,以硫化钠为脱药剂,然后以硫酸锌+亚硫酸钠作为组合抑制剂、Z-200+乙硫氮作为组合捕收剂,最终获得铜品位14.32%、铜回收率84.12%,铅品位25.36%、铅回收率69.55%,且锌含量7.86%的铜铅混合精矿以及锌品位52.29%、锌回收率95.85%的锌精矿。     

四川某高硫铜铅锌矿选矿工艺研究与生产实践

根据矿石性质,针对四川某高硫铜铅锌矿进行了浮选分离研究,工业试验采用铜铅混合浮选再分离—锌、硫顺序浮选的选矿工艺流程获得了铜精矿品位20.15%,回收率80.12%;铅精矿品位60.10%,回收率83.24%;锌精矿品位47.01%,回收率78.64%;硫精矿品位38.92%,回收率72.64%的较好选别指标。工业试验表明,新工艺取得了较好的技术经济指标。     

云南某含砷铅锌银多金属矿选矿试验研究

在工艺矿物学研究的基础上,对含铅 2.93% 、锌2.80%、银 110.45g/t、硫 26.94%,以及有害元素砷0.53%的云南某含砷铅锌银多金属矿进行了选矿试验研究。结果表明：采用铅优先-锌硫混合浮选再分离工艺,结合铅银矿物高效捕收剂BK915和黄铁矿抑制剂BD,获得了铅品位68.46%、铅回收率88.50%,银品位2358 g/t、银回收率84.37%,砷品位1.45%的铅精矿;锌品位51.32%、锌回收率89.07%,砷品位0.18%的锌精矿;硫品位49.14%,硫回收率82.35%的硫精矿。     

甘肃某复杂铜铅锌硫化矿石浮选新工艺研究

为解决甘肃某铜铅锌多金属硫化矿矿石性质变化后原选矿工艺流程不能适应的问题,进行了铜与部分铅锌优先混合浮选再分离浮选-其余铅锌与硫混合浮选-铅锌与硫分离浮选新工艺的试验研究,闭路试验获得了铜精矿铜品位为20.99%、铜回收率为74.23%,铅锌混合精矿铅和锌品位分别为16.65%和27.32%、铅和锌回收率分别为91.11%和93.32%,硫精矿硫品位为41.62%、硫回收率为37.58%,伴生金和银在铜精矿和铅锌混合精矿中的总回收率分别为83.84%和88.27%的良好指标。     

甘肃某铜铅锌多金属矿选矿试验研究

对甘肃某铜铅锌多金属矿进行了浮选试验研究,结果表明,采用反浮选除炭—铜铅混合浮选—铜铅分离—尾矿选锌选硫的工艺流程,可获得铜品位14.32%、铜回收率37.68%的铜精矿,铅品位45.60%、铅回收率83.21%的铅精矿,锌品位47.45%、锌回收率92.71%的锌精矿,硫品位31.26%、硫回收率26.52%的硫精矿,达到了对该矿的综合利用。     

陕西某低品位铜铅锌硫化矿石选矿试验

针对陕西某低品位铜铅锌硫化矿石性质的特点,采用铜铅部分优先混合浮选原则流程,以西北矿冶研究院研制的锌抑制剂T₈₀、铜铅混合浮选捕收剂酯-12、铜铅分离铅抑制剂T₈₁为关键药剂,对该矿石进行了选矿试验研究。结果表明,采用1粗3精1扫铜铅混浮、1粗1精1扫铜铅分离、1粗2精1扫选锌、中矿顺序返回流程处理该矿石,获得了铜品位为2896%、回收率为6371%、伴生银品位为98084 g/t、回收率为1795%的铜精矿,铅品位为4537%、回收率为8187%、伴生银品位为68996 g/t、回收率为3605%的铅精矿,锌品位为5044%、锌回收率为8936%的锌精矿。     

新型捕收剂在青海某混合铅锌矿分选中的应用

对青海某硫氧混合铅锌矿进行了工艺流程及药剂制度试验研究。根据矿石特点,采用先浮铅后浮锌的优先浮选工艺进行试验,选锌工艺采用同时捕收硫化锌矿物和氧化锌矿物的新型捕收剂TY,最终获得了铅精矿铅品位66.39%、回收率97.13%、锌含量0.54%,锌精矿锌品位53.11%、回收率89.23%、铅含量0.65%的浮选指标。该研究为混合铅锌矿的浮选分离提供了一定的借鉴参考意义。      

某难选高硫铅锌矿的选矿工艺试验研究

根据某高硫难选铅锌矿石的原矿性质,进行了浮选药剂条件试验和闭路试验研究。采用石灰调浆、硫酸锌抑制锌矿物,混合捕收剂优先浮选铅,在低碱条件下,用新型活化剂X-41活化选铅尾矿,丁黄药选锌,可以实现铅、锌的高效分离,铅精矿铅品位和回收率分别达到60.32%和77.03%,锌含量为7.51%;锌精矿锌品位40.27%、回收率78.13%,铅含量2.47%。     

云南某含碳铅锌矿浮选回收铅锌试验研究

采用优先浮选碳-铅硫混选分离-锌硫混选分离的浮选工艺流程对云南某含碳铅锌矿进行了试验研究, 成功获得了铅精矿、锌精矿, 并有效回收了硫。铅精矿中铅品位47.72%、锌品位4.25%、铅回收率48.05%、锌回收率0.38%, 锌精矿中锌品位50.27%、铅品位0.72%、锌回收率94.21%、铅回收率15.13%。铅、锌在碳产品中损失不大。     

China rare earth market review

正November 21~30,2014Due to weak demand from downstream industries,transactions of rare earth in Chinese domestic market were inactive.It was difficult to sell any rare earth products except for dysprosium oxide and terbium oxide.Suppliers lost confidence in recent market.Demand for rare earth products was soft.Consumers continued to take a wait-and-see attitude.Rare earth export market remained slow.     

Current situation and future trend of China rare earth luminescent materialindustry(continued)

<正>Developing ecological lighting source The world is facing the big problem of energy shortage today and the contradiction between economy development and environmental protection is worsened.Therefore,people are more likely to choose an ecological light source that is more energy efficient and environmental friendly.The choice provides great opportunity for the development of rare earth optical material industry in China.The concept of green lighting positions rare earth luminescent material as a leading player in illumination market.The light source of both rare earth luminescent lamp and LED lamp is ecological and energy saving.This is why     

Galaxy Magnets achieved the net profit of 34.02 million yuan in the first six months of 2014

正Galaxy Magnet announced its financial results for the first half of 2014 on August 14.For the first six months ended on 30 June 2014,Galaxy Magnet achieved operation income of RMB 182.3 million,up8.40% over the same period of 2013,and the net profit attributable to the shareholders of the listed company of 34.02 million yuan,increasing 35.49% over the same period of last year.Stable performance increase was led by development of new customers and application market of magnets.     

Rare Earth Application in Steel in China

<正>China has rich rare earth resources.Output of rare earth and steel in China ranks the top first in the world.However,there is still certain distance between the steel produced in China and developed countries from the point of varieties and quality.China still has to import some types of steel.Improving the quality should be emphasiZed in future development of steel industry in China.Rare earth can be used to upgrade traditional steel     

稀散金属产业的观察与思考

分析了近年来国内外稀散金属产业的生产、应用、资源与市场状况.铟锡氧化物靶材、砷化镓晶片、锗红外材料、铼高温合金和硒在电解锰及玻璃的应用等已成为稀散金属的主要应用领域.稀散金属的产量快速增长达到历史高位而导致了市场的失衡.以GaInP_2/GaAs/Ge,CIGS和CdTe为代表的非硅系太阳能电池是稀散金属的新兴应用领域,将给稀散金属带来日益增长的需求.     

China rare earth market review

正November 1~10,2014Chinese rare earth market was still inactive.Demand for rare earth products was weak.Consumers took a wait-and-see attitude for lower price.As it was an off season for rare earth products,it was expected that prices of rare earth could continue turbulence at the bottom in short terms.Due to a sharp drop,demand for rare earth from downstream recovered.Affected by new energy vehicles,wind powder and energy-efficient appliances,production of rare earth permanent     

China rare earth market review

正August 1~10,2014 There was some good news in rare earth industry recently.Restructuring plans of rare earth groups led by Baotou IronSteel Group and Xiamen Tungsten Group respectively have been approved by MIIT.And rare earth storage policy,which had been expected for a very long time,has been launched officially.Pushed by the good news,rare earth price started to rebound since August 5.Price of didymium oxide and dysprosium oxide rose about 1% to 2%,averagely.About 10% of     

China rare earth market review

正July 1~10,2014Due to weak demand from downstream industry and slow transactions,rare earth market remained weak and price of rare earth products continued to decline.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,     

New energy vehicle:an opportunity for rare earth magnets

<正>Extracted from Securities Guide 1.Popularity of new energy vehicles—an irresistible market trend1.1 Progress of new energy vehicles Chinese Premier Li Keqiang said recently on a visit to Xi'an BYD Autos that new energy vehicles,especially new energy bus,can lessen environment and noise pollution.He encouraged the use of new     

Brief news

正Corun invested another 50 million yuan in power battery for HEV Hunan Corun announced on 27 June that they had signed the cooperation agreement to jointly built Corun(Shaoxing)Autos Power Battery System Co.,Ltd.in Shaoxing Binhai New City.According to the announcement,total registered