伴生低品位锡资源回收新技术研究及应用

柿竹园伴生锡金属品位低,赋存状态复杂,易碎易泥化,在过去工业生产中并未实现对锡的分离富集。在开发伴生低品位锡资源回收新技术试验基础上,采用"钨锡混合浮选—白钨浮选—重选—浮选"的选矿工艺,开展伴生低品位锡资源回收分流技术的工业试验。在硫化矿尾矿细度为-0.074 mm占68%～72%的条件下,钨锡混合精矿中WO3品位为19.55%、Sn品位为5.53%,对原矿WO3回收率达到13.51%、Sn回收率为18.34%。     

湖南某白钨矿选矿试验研究

湖南某白钨矿中含有大量富钙、镁脉石矿物,该类脉石矿物具有与白钨矿相似的可浮性,对白钨浮选干扰较大,为解决这一问题,研发了选矿新工艺。试验采用脱硫尾矿作为白钨浮选给矿（WO3 0.54%）,白钨粗选段采用组合调整剂Na2CO3 Na2SiO3以及新型捕收剂GYWA进行白钨粗选段浮选,获得白钨粗精矿品位6.97% WO3,对白钨浮选给矿回收率为93.01%。白钨精选段采用组合调整剂NS和改性Na2SiO3进行加温浮选,得到白钨精矿品位为70.14% WO3,作业回收率93.89%,对白钨浮选给矿回收率为87.33%,选矿指标良好。     

福建某低品位共伴生白钨、萤石矿选矿试验研究

对福建某WO3品位0.10％、CaF2品位25.45％的低品位共伴生白钨、萤石矿,以矿冶科技集团有限公司自主研发的高效选矿药剂BK418作为白钨捕收剂,BK410作为萤石捕收剂,采用"白钨常温浮选-常温浮选钨精矿加温精选-白钨常温浮选尾矿浮选萤石"的工艺流程处理该矿石,获得钨精矿中WO3品位为60.48％,WO3回收率...     

湖南某白钨矿选矿试验研究

采用"优先浮硫-白钨常温粗选-钨粗精矿加温精选"的工艺流程,对含钨(WO3)0.41%的原矿,取得了钨精矿品位(WO3)66.20%,回收率(WO3)81.27%的选矿技术指标,使钨得到了有效回收。     

江西某钨矿选矿试验研究

在工艺矿物学研究的基础上,对含WO30.43%的江西某石英脉型钨矿进行了选矿试验研究。结果表明,采用分级跳汰—跳汰尾矿浮选的工艺流程,黑白钨混合浮选的捕收剂采用CF和BK-410,可获得WO3品位28.86%、WO3回收率42.39%的跳钛精矿,以及WO3品位3.59%、WO3回收率30.07%的浮选精矿。     

某低品位白钨矿选矿试验

为综合回收利用WO3含量为0.045%的某低品位白钨矿,试验采用优先浮硫—白钨常温粗选—加温精选的工艺流程,以碳酸钠为调整剂,水玻璃为抑制剂,731为捕收剂进行浮选回收白钨矿试验,最终获得了含WO3为31.03%,对原矿回收率为75.38%的白钨精矿且经济效益显著。     

广东某白钨矿选矿的试验研究

广东某钨矿的主要钨矿物为白钨矿,采用常温粗选—加温精选的浮选工艺回收钨矿物。当原矿品位WO3为0.593%时,以碳酸钠为调整剂,水玻璃为抑制剂,ZL为捕收剂,浮选闭路试验可获得品位WO365.97%、回收率81.98%的白钨精矿。     

某低品位浸染型钨钼矿选矿工艺研究

针对某低品位细脉浸染型钨钼矿石性质,采用"全硫混合浮选—混合精矿再磨—钼硫分离"工艺回收辉钼矿,获得了钼精矿含钼为46.14%,回收率为80.32%;采用"731氧化石蜡皂常温浮选法"回收白钨矿,获得了白钨精矿含WO_3品为67.21%、回收率为76.17%。着重对白钨的常温浮选工艺和加温浮选工艺、水玻璃模数等方面进行了试验研究,得到了较为经济合理的选矿回收工艺,为该矿石的开发利用提供了依据。     

江西某铜硫钨多金属矿选矿工艺研究

江西某铜硫钨多金属矿是我国大型的矽卡岩型白钨矿床,含Cu 0.11%、S 2.95%、WO30.75%,其主要金属矿物是黄铜矿、磁黄铁矿和白钨矿。通过多种选矿工艺流程探讨,确定采用磁选脱硫—铜硫混合浮选－白钨浮选工艺流程产出硫精矿、铜精矿及白钨精矿,获得的闭路试验指标为：硫精矿含S 30.16%,回收率77.58%;铜精矿含Cu 18.28%、回收率76.83%;白钨精矿含WO3 66.04%,回收率81.67 %。     

某金钨矿选矿试验研究

为综合回收某金钨矿中的金与钨,开展了系统的选矿试验研究。采用硫酸铜、异戊基黄药与松醇油浮选回收金,采用调整剂碳酸钠、水玻璃与捕收剂皂化油酸浮选回收钨,钨粗精矿采用彼得罗夫法处理,闭路试验可以获得含金148.05 g/t、金回收率为94.87%的金精矿以及含WO357.46%、含磷0.25%,WO3回收率为80.52%的钨精矿。钨精矿经盐酸浸出,可将WO3含量提高至74.10%,含磷量降低至0.070%,酸浸作业WO3回收率达到98.87%。     

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     

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.     

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.     

Current situation and future trend of China rare earth luminescent material industry

<正>Rare earth luminescent material is one of the most important application sectors of rare earths.China enjoys the exceptional advantage to develop rare earth luminescent material for its abundant rare earth resources.After several decades'endeavor,China's rare earth luminescent material industry,headed by rare earth phosphor for lamp and LED and high efficient rare earth energy-saving light source,has been gradually developed into a scale industry.China has become a major production base of rare earth phosphor for lamps and rare earth     

China rare earth market review

正June 1~10,2014Rare earth market remained weak.Quoted price of rare earth products was similar to that in May.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,polishing powder and ceramic industries remained inactive.Demand from downstream industry was soft.Consumers purchased on their needs.Suppliers had strong intention to sell.Prices of rare earth products     

Annual Report analysis of Chinese rare earth-related listed companies in 2013

<正>Chinese rare earth-related listed companies have published their 2013 annual reports.It can be understood from their reports that production and operation activities of Chinese rare earth-related companies were still heavily affected by macro economy and industrial policies.They basically followed the steps of national economy.In 2013,world economy recovered slowly but the economy     

Market opportunities and challenges for rare earth polishing powder

正1.Status of rare earth polishing powder Rare earth polishing powder with high content of cerium oxide began to replace iron oxide for glass polishing and became one of the key materials in glass polishing process since 1940.Compared with traditional iron oxide,rare earth polishing powder has many advantages,such as fast polishing rate,high polishing quality and long service life.It can achieve good surface quality and improve operation conditions.For example,in lens polishing,the polishing work that cerium     

Baotou Research Institute of Rare Earths developed a new RE alloy preparation technology

正Pyrometallurgy Laboratory of Baotou Research Institute of Rare Earths had independently developed a new preparation technology of rare earth alloy for NdFeB.The alloy can remarkably enhance the coercivity of NdFeB magnet but also evidently reduce the production cost of the magnet.The new master alloy was prepared in the kA pilot-scale electrolytic cell by the independent technology.The rare earth master alloy can be used as the raw material for NdFeB.Compared