新型抑制剂RC分离脆硫锑铅矿和磁黄铁矿的研究

研究了新型抑制剂RC在脆硫锑铅矿和磁黄铁矿浮选分离中的作用。浮选结果表明，新型有机抑制剂RC能有效抑制磁黄铁矿，对脆硫锑铅矿无明显抑制作用。通过红外光谱分析测定了矿物表面与药剂的吸附产物，进行了RC抑制机理探讨。     

铅锑锌铁硫化矿-乙硫氮电化学浮选行为的研究

考查了乙硫氮为捕收剂时,磁黄铁矿、脆硫锑铅矿和铁闪锌矿的浮选行为,发现在pH2~12的范围内,磁黄铁矿具有良好的可浮性,当pH>12时,可浮性下降。而脆硫锑铅矿在整个pH范围内,均具有很好的可浮性。铁闪锌矿只有在酸性条件下才有较好的可浮性,当pH>5以后,浮选回收率急剧下降而不可浮。并采用氧化剂过硫酸铵、还原剂硫代硫酸钠调节矿浆电位,考查了磁黄铁矿、脆硫锑铅矿和铁闪锌矿在不同pH值下可浮性与矿浆电位的关系,得出了矿物可浮的电位-pH区间。研究表明,磁黄铁矿和脆硫锑铅矿可分离电位区间很窄。     

铅锑锌铁硫化矿-丁胺黑药诱导浮选行为的研究

考查了丁铵黑药为捕收剂时, 磁黄铁矿、脆硫锑铅矿和铁闪锌矿的浮选行为.发现磁黄铁矿和脆硫锑铅矿在pH＜10范围内均有较好的可浮性,当pH＞10后,回收率开始下降.铁闪锌矿只有在酸性条件下才可有很好的可浮性,当pH＞5以后,浮选回收率急剧下降而不可浮.通过用氧化剂过硫酸铵,还原剂硫代硫酸钠调节矿浆电位,考查了磁黄铁矿、脆硫锑铅矿和铁闪锌矿在不同pH值下,可浮性与矿浆电位的关系,得出了矿物可浮的电位-pH区间.研究表明,三种硫化矿存在可分离电位区间.     

铅锑锌铁硫化矿-乙黄药电化学浮选行为的研究

考查了乙黄药为捕收剂时,磁黄铁矿、脆硫锑铅矿和铁闪锌矿的浮选行为,发现在pH2~12的范围内,磁黄铁矿和脆硫锑铅矿均表现出良好的可浮性,只有pH>12时,可浮性下降。铁闪锌矿只有在酸性条件下才有较好的可浮性,当pH>5以后,浮选回收率急剧下降而不可浮。并采用氧化剂过硫酸铵、还原剂硫代硫酸钠调节矿浆电位,考查了磁黄铁矿、脆硫锑铅矿和铁闪锌矿在不同pH值下,可浮性与矿浆电位的关系,得出了矿物可浮的电位-pH区间。研究表明,三种硫化矿存在可分离电位区间。     

含水杨羟肟酸捕收剂废水对铅锑锌硫化矿浮选行为的影响

以脆硫锑铅矿、铁闪锌矿、六方磁黄铁矿为研究对象,考察了含水杨羟肟酸捕收剂模拟废水对铅锑锌硫化矿浮选行为的影响,并利用红外光谱测试研究了其作用机理。结果表明,在含水杨羟肟酸废水体系中,以硫氧化合物CSU61为抑制剂、25^#黑药为捕收剂、矿浆pH值6.0条件下,脆硫锑铅矿回收率可达到95%以上,而铁闪锌矿和六方磁黄铁矿回收率低于20%,证明含水杨羟肟酸捕收剂废水体系有利于脆硫锑铅矿与铁闪锌矿或六方磁黄铁矿的分离。红外光谱分析结果表明,水杨羟肟酸废水体系下抑制剂CSU61可以有效抑制25#黑药在铁闪锌矿和六方磁黄铁矿表面的吸附,但不影响其在脆硫锑铅矿表面的吸附。研究成果可为硫化-氧化混合型矿床选矿废水交叉回用提供技术支撑,丰富选矿废水回用的研究体系。     

低锌精矿加温二氧化硫反浮选新工艺研究

研究证实加温二氧化硫反浮选新工艺，能有效地解决经铜离子活化后的铁闪锌矿与磁黄铁矿混合精矿的分离。对难选高铁低锌精矿（含铁闪锌矿、磁黄铁矿和脆硫锑铅矿等），采用加温二氧化硫反浮选工艺进行的扩大试验，将低锌精矿（九级品）提高到六级品，含锌达到４９．２％、回收率９６．３９％。     

有机抑制剂DMPS对脆硫锑铅矿和磁黄铁矿抑制作用的研究

研究了有机抑制剂DMPS对脆硫锑铅矿和磁黄铁矿的抑制作用。结果表明，DMPS对磁黄铁矿有很好的抑制作用，对脆硫锑铅矿几乎无抑制作用。DMPS分子结构中含有-SH，-SO3等多种官能团，黄药和DMPS之间存在竞争吸附的关系，由于DMPS携带亲水基团，使得磁黄铁矿表面更易亲水，因而受到抑制。     

国外某金锑矿选矿试验研究

对国外某金锑矿进行了详细的工艺矿物学研究,查明矿石中主要矿物为脆硫锑铅矿及黄铁矿,金以自然金形态存在,主要赋存于脆硫锑铅矿中,其次赋存于黄铁矿中.对矿石进行了混合浮选试验研究,结果表明:在磨矿粒度为-0.074 mm粒级占80％条件下,混合浮选闭路试验能获得锑、铅、金品位分别为15.12％、18.50％、51.34 g/t,锑、铅、金回收率分别为86.14％、83.78％、90.35％的混合精矿.采用碳酸钠和YP的组合抑制剂能较好地对混合浮选精矿进行锑硫分离.     

铅锑锌铁硫化矿的细菌浸出

研究了脆硫锑铅矿、铁闪锌矿、磁黄铁矿的细菌摇瓶浸出，结果发现，脆硫锑铅矿不能被细菌浸出；磁黄铁矿细菌浸出23d，铁的浸出率为99％；铁闪锌矿细菌浸出29d，锌的浸出率为91％，铁的浸出率为15％。矿浆浓度对磁黄铁矿和铁闪锌矿的细菌浸出有影响。利用X射线分析了3种矿物的细菌浸出机理。     

节省石灰用量合理方案探讨(摘要)

长坡选矿厂采用重-浮-重联合流程处理锡石多金属硫化矿。浮选系采朋混合-优先流程回收铅、锌、硫及砷等硫化矿物。硫化矿分离浮选采用无氰工艺,即用石灰抑制黄铁矿、脆硫锑铅矿和毒砂,在pH12下浮锌;在相同pH条件下,以乙硫氮为捕收剂,辅以少量2号油浮铅,分离浮选的槽内产品为     

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 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     

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     

铜熔炼中锍品位对杂质元素分配行为的影响

借助于多相、多成分系统中平衡计算的手段，开发出微量元素砷、锑、铋及伴生元素铅、锌等在铜熔炼中分配行为的计算机模型。利用该模型对铜熔炼过程进行计算机模拟，分析了冰铜品位对砷、锑、铋、铅和锌等杂质元素的分压、活度系数及它们在冰铜、炉渣和气相中分配率的影响，并讨论其热力学分析结果对生产实践的指导意义。     

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,