取代氰化钠的新型无毒抑制剂FY02的合成及抑制性能研究

通过小型试验合成得到新型有机抑制剂FY02。合成FY02的最佳反应条件为RG1和RG2与RL的摩尔比为1.0∶1.0∶1.0、催化剂用量为总配料量的1%、水用量为配料量的70%、反应温度85~90℃、反应时间5.5~6 h。FY02为淡黄色至黄色溶液、无毒,在多金属硫化矿浮选中,取代剧毒的氰化钠抑制黄铁矿、磁黄铁矿、毒砂等矿物,试验指标优于氰化钠。     

新型无毒有机抑制剂FY02的应用研究

通过小型浮选试验对取代剧毒氰化钠的无毒有机抑制剂FY02进行应用研究,试验结果表明,石灰和硫酸铜用量对FY02进行锌硫浮选分离指标的影响较大;起泡剂用量对FY02进行锌硫浮选分离指标的影响较小;捕收剂用量对FY02进行锌硫浮选分离指标几乎没有影响。在FY02用量为390g/t时,能有效实现锌硫分离,锌精矿锌品位达47.53%、作业回收率为95.97%。     

新型无毒铜铅分离有机抑制剂FY09的合成及性能研究

通过小型试验合成得到新型无毒铜铅分离有机抑制剂FY09。合成FY09的最佳工艺条件为摩尔配料比RG5∶RG6∶RL2=1∶1∶1.05、催化剂用量为总配料量的1.5%、反应温度80℃、反应时间6.5 h。FY09为淡黄色溶液、无毒,在铜铅多金属硫化矿浮选中,取代重铬酸钾+CMC抑铅浮铜,试验指标优于重铬酸钾+CMC。     

新型无毒铜铅分离有机抑制剂FY09的合成及性能研究

通过小型试验合成得到新型无毒铜铅分离有机抑制剂FY09。合成FY09的最佳工艺条件为摩尔配料比RG5∶RG6∶RL2=1∶1∶1.05、催化剂用量为总配料量的1.5%、反应温度80℃、反应时间6.5 h。FY09为淡黄色溶液、无毒,在铜铅多金属硫化矿浮选中,取代重铬酸钾+CMC抑铅浮铜,试验指标优于重铬酸钾+CMC。     

新型无氰抑制剂在锌硫分离过程中的应用

简要介绍了巴里选矿厂的生产工艺,并对新型无氰抑制剂FY02在锌硫分离中的应用进行选矿试验研究。结果表明,采用FY02作抑制剂,锌精矿锌品位46.72%、锌回收率94.64%,指标较好,可以取代氰化钠。     

某铜铅浮选尾矿中锌及伴生组分的综合回收试验研究北大核心

针对某铜铅浮选尾矿含有金银锌硫等有价组分,可综合回收利用。但由于矿石中锌含量较低,主要以铁闪锌矿形式存在,同时硫含量较高,因此难以获得品质较好的锌精矿,导致产品销售价格较低,选矿经济效益得不到有效发挥。为增加企业经济效益,对该尾矿进行了选矿试验,旨在对矿石中的低品位锌进行有效回收,同时回收矿石中的伴生组分金银,为选厂进行生产改造提供技术依据。铜铅尾矿锌品位为0.39%,金银含量分别为0.77、10.15 g/t,试验采用锌硫混选—锌硫分离工艺,通过添加含锌矿物的新型环保活化剂X-46和硫铁矿的选择性抑制剂BK526,在最佳的工艺条件下,闭路试验获得了锌精矿锌品位为46.27%、锌作业回收率为80.35%,含金8.24 g/t、含银103 g/t;硫精矿硫品位为46.54%、硫作业回收率为87.63%,含金3.00 g/t、含银29.80 g/t的理想指标。伴生组分金银在锌、硫精矿中得到了有效富集。     

内蒙古某铜铅锌多金属硫化矿石选矿试验

内蒙古某铜铅锌多金属硫化矿石中主要有价元素为铜、铅、锌、银,主要金属矿物方铅矿、闪锌矿、黄铁矿、黄铜矿等嵌生关系密切。为确定该矿石的选矿工艺流程,采用铜铅混浮再抑铅浮铜、锌硫混浮再抑硫浮锌原则流程进行了选矿试验。结果表明：矿石在磨矿细度为-200目占70%的情况下,采用1粗2扫3精铜铅混浮、1粗1扫2精铜铅分离、1粗1精3扫锌硫混浮、1粗2扫3精锌硫分离流程处理,获得了铜品位13.52%、含银3 398.44 g/t、铜回收率68.95%、银回收率29.25%的铜精矿,铅品位68.36%、含银3 053.78 g/t、铅回收率84.28%、银回收率46.39%的铅精矿,锌品位46.73%、含银241.13 g/t、锌回收率81.85%、银回收率11.90%的锌精矿,以及硫品位16.09%、硫回收率18.89%的硫精矿。     

青海某低品位复杂难选铅锌矿石选矿试验

为了确定青海某低品位复杂难选铅锌矿石的选矿工艺,在工艺矿物学研究的基础上进行了选矿试验研究。结果表明,矿石在磨矿细度为-0.074 mm占75%的情况下,采用铜铅混合浮选—混合精矿铜铅硫分离—铜铅混浮尾矿浮选选锌流程处理矿石,可获得铜品位为14.20%、含金26.77g/t、含银466.40 g/t、铜回收率为16.55%的铜精矿,铅品位41.22%、含银63.60 g/t、铅回收率为69.92%、银回收率为16.84%的铅精矿,锌品位为40.96%、含银53.40g/t、锌回收率为67.04%、银回收率为23.13%的锌精矿,以及硫品位为38.41%、含金13.92 g/t、含银163.90 g/t、硫回收率为14.16%、金回收率为23.71%、银回收率为15.92%的硫精矿。     

基于正交试验某高硫铅锌矿选矿工艺优化

高硫铅锌矿的高效分离一直以来是选矿研究的技术难题。试验所有矿样来至贵州某高硫铅锌矿选厂,原矿Pb品位2.68%、Zn品位8.80%、S品位17.46%,S主要赋存于黄铁矿中,嵌布关系复杂,解离程度不高。采用“优先浮铅再浮锌”的原则流程,通过单因素试验确定了铅粗选最佳磨矿细度为－0.074 mm含量为85%、铅粗选捕收剂为丁基黄药+乙硫氮。采用正交试验设计分别对铅粗选和锌粗选的药剂用量进行优化,结果表明,铅粗选最佳药剂制度为石灰2 000 g/t、硫酸锌1 200 g/t、丁基黄药+乙硫氮35 g/t+35 g/t、松醇油30 g/t,锌粗选最佳药剂制度为石灰800 g/t、X-45 500 g/t、丁基黄药120 g/t、松醇油20 g/t。在最佳药剂制度条件下,采用“铅一粗二扫三精、锌一粗二扫二精”选矿工艺流程进行闭路试验,最终获得Pb品位58.42%、Pb回收率80.92%的铅精矿,获得Zn品位51.61%、Zn回收率92.60%的锌精矿。     

某复杂铜铅锌多金属矿选矿试验

针对某复杂铜铅锌多金属矿的性质特点,采用弱磁选脱硫-铜铅混浮-混合精矿铜铅分离-混浮尾矿选锌的原则流程对该矿石进行选矿试验研究。在矿石磨矿细度为-0.074 mm占90%的情况下,采用1次弱磁选选硫、1粗2精2扫铜铅混浮、1粗2精1扫铜铅分离、1粗3精2扫选锌、中矿顺序返回流程处理该矿石,最终获得了铜品位为24.79%、铜回收率为55.78%的铜精矿,铅品位为51.34%、铅回收率为83.55%的铅精矿,锌品位为45.63%、锌回收率为62.71%的锌精矿,硫品位为35.12%、硫回收率为80.08%的硫精矿。铜精矿含银229.53 g/t,铅精矿含银196.20 g/t,铜、铅精矿中银的总回收率为50.29%。     

Market and recycling of NiMH battery

<正>Market status and future trend of NiMH battery1.Global market of small NiMH battery Global market size of small NiMH batteries declined year on year since 2011.The trend will continue to 2018,at the rate of 5%to 10%annually.Demand for small NiMH batteries will be stable gradually.Many electrical apparatuses are powered by the built-in lithium battery today,which is the main reason for the shrunk market of small NiMH batteries.But,for some products,small NiMH     

China rare earth market review

正September 1-10,2014 Affected by the National Day holiday,rare earth transaction was stagnant and the market showed a weak steady state.As there was no good news for downstream market,some products with flat demand would likely rally slightly for some time to     

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     

2014 second batch of rare earth quota released

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