脱硫型水煤浆燃烧脱硫的机理研究

脱硫型水煤浆燃烧具有较高的脱硫率，为深入研究其机理，采用Ｘ射线衍射仪等手段，结合水煤浆燃烧特点，分析了整个脱硫过程．特别对于水煤浆燃烧脱硫优越于煤粉的原因作了解释，提出脱硫型水煤浆具有较高脱硫率的机理在于：耐高温脱硫产物３ＣａＯ３Ａｌ２Ｏ３Ｃａ－ＳＯ４的形成、增湿活化作用以及较低的燃烧温度     

新疆煤制备脱硫型水煤浆的试验研究

利用廉价的钙基原料，按一定配比制成水煤浆的复合钙基固硫剂，新疆煤添加少量固硫助剂制备脱硫型水煤浆，试验表明，制备的脱硫型水煤浆具有较好的流变性，在1000℃左右燃烧温度时，可将水煤浆固硫率提高到60％左右。     

中高硫煤制备脱硫型水煤浆的试验研究

进行了不同含硫量煤制备脱硫型水煤浆燃烧固硫的试验研究，结果表明：在相同Ca/S值下，水煤浆燃烧固硫率比煤粉高9%左右，Ca(OH)₂的固硫能力比CaCO₃高，钙基固硫剂复配的固硫效果比单一使用某一类固硫剂要好.制备脱硫型水煤浆时添加少量固硫助剂可以提高水煤浆的固硫率，碱金属盐用量为固硫剂1%时，固硫率提高6%~9%.Al₂O₃， Fe₂O₃和TiO₂对水煤浆燃烧固硫有明显的促进和协同作用，水煤浆固硫率提高约11%.     

FeO—MgO—SiO2系粘度的研究

测定了半合成的不同成分的ＦｅＯＭｇＯＳｉＯ２系炉渣粘度。在ｗ（ＭｇＯ）为６％～１０％，ｗ（Ｆｅ）／ｗ（ＳｉＯ２）为１１～１４，温度为１２００～１５００℃时，炉渣粘度随ｗ（ＭｇＯ）和ｗ（Ｆｅ）／ｗ（ＳｉＯ２）的提高而增大；在ｗ（ＭｇＯ）＜６％时，冶炼温度控制在１３００℃即能保证顺利生产；当ｗ（ＭｇＯ）＞１０％时，镍冶炼炉渣的温度应控制在１３６０℃以上；在ＭｇＯ含量较高时，可通过降低ｗ（Ｆｅ）／ｗ（ＳｉＯ２）得到粘度较低的炉渣。金川闪速炉炉渣的合理ｗ（Ｆｅ）／ｗ（ＳｉＯ２）为１２左右。     

氧化铁和氧化钛对水煤浆燃烧固硫的促进作用

脱硫型水煤浆的固硫剂主要是钙基固硫剂，其固硫产物在高温下会分解，从而降低燃烧固硫效率。通过研究了氧化铁和氧化钛对水煤浆燃烧固硫的促进作用，发现氧化铁和氧化钛对不同煤种制备的脱硫型水煤浆固硫效果的影响是不同的，但同时添加这两种固硫助剂则可以较大幅度地提高水煤浆的固硫率。     

高温燃煤脱硫添加剂的煅烧特性及孔隙特性研究

针对炉内煤高温燃烧中脱硫率低的国际性难点,从分析化学的角度在失重分析的基础上分析了高温脱硫添加剂的脱硫机理．利用管式炉在不同条件下(温度、时间、气氛等)对脱硫添加剂的样品进行燃烧,用Origin6．0画图软件拟合出了各种样品在不同条件下的燃烧特性;并用Poremaster60孔隙分析仪分析了各燃烧样品的孔隙率以及比表面积等重要参数;最后利用智能定硫仪测试了在不同温度下不同脱硫添加剂配方的脱硫效果,得到了脱硫添加剂脱硫效果与其孔隙特性的对应关系,为制备高效的高温脱硫添加剂提供了理论基础．     

氧化铝对水煤浆燃烧固硫的促进作用

研究了氧化铝对水煤浆燃烧固硫的促进作用。研究发现，制备脱硫型水煤浆时添加少量氧化铝可提高水煤浆的固硫率，氧化铝用量为钙基固硫剂用量的10％时，水煤浆固硫率最高。     

含硼炉渣脱硫性能研究

用静态平衡法研究了含有 Ｂ２Ｏ３的 ＭｇＯ－ＣａＯ－ＳｉＯ２－Ｂ２Ｏ３－Ａｌ２Ｏ３五元渣系的脱硫率与炉渣组成变化的关系．当三元碱度Ｒ３小于２．２时,脱硫率随Ｒ３增大而增大,随Ｂ２Ｏ２含量的增加而减小; Ｒ３较大时,其增大对脱硫率影响不大,这时 Ｂ２Ｏ３含量的增加有利于改善动力学因素,提高脱硫率．     

科技文苑窗

科技文苑窗中国水煤浆技术的发展──詹隆等．《煤炭科学技术》，１９９６（４）我国水煤浆的研究开发从“六五”开始，首先在实验室及小试规模制浆及燃烧成功，并在抚顺胜利矿、枣庄八一矿建成能力各为３万ｔ／ａ与２万ｔ／ａ的简易制浆厂。“七五”期间，从科研到工业应...     

硫化铜精矿碳还原的研究

本文研究了硫化铜精矿碳还原，结果表明，在加催化剂的条件下，铜还原率达９８％，还原率随温度升高而提高；ＣａＯ／Ｃｕ２Ｓ的作用明显，而Ｃ／Ｃｕ２Ｓ的作用不显著。在未加催化剂情况下，铜还原率低，Ｃ／Ｃｕ２Ｓ的作用明显，ＣａＯ／Ｃｕ２Ｓ的影响甚微；反应时间大于９０分钟，延长时间还原率几乎不再提高；在较高还原率时，ＣａＯ的固硫作用随还原率的提高而增加。     

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.     

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,