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In situ synthesized Cu-ZSM-5/cordierite for reduction of NO WANG Jian-cheng1, TIAN Dong1, HAN Li-na1, 2, CHANG Li-ping1, BAO Wei-ren1 1. Key Laboratory of Coal Science and Technology of Ministry...-ZSM-5/cordierite prepared by different methods shows a wide temperature window (240-540 °C) with high NO removal activities. Key words: in situ synthesis; Cu-ZSM-5/cordierite; selective catalytic reduction; NH3 1......
Fabrication of wear-resistant layers with lamellar eutectic structure by laser surface alloying using the in situ reaction between Cr and B4CYou-zheng Sun,Jin-bao Li,Daniel Wellburn,Chang-sheng...-resistant layers with lamellar eutectic microstructure were fabricated by laser surface alloying(LSA), which is dependent on the in situ reaction between Cr and B4C. Our results indicated......
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铟Mark Fickling B.Sc(hons),王顺昌采矿和化学产品公司摘 要:<正> 1990-1994年这五年间,铟的需求年平均增长率接近10%.这是由于铟在铟-锡氧化物(ITD)透明电极中的消费量急剧增加(特别是在日本)引起的.虽然铟的需求坚挺,但同期铟的价格却逐渐下跌,从250关键词:......
铟J.G.Fife,寿永华摘 要:<正> 尽管1984年世界铟的消耗有较大增长,在西欧出现了需要大于生产的情况.美国仍保持着主要铟消耗国的地位,其用量约为世界用量的三分之一.因为世界铟价偏低,美国只从锌副产物中生产极少量铟,因而美国市场的铟几乎完全依靠进口.关键词:......
STUDY ON THE THERMODYNAMICS OF CuO/Al IN SITU Al2O3 REINFORCED Al MATRIX COMPOSITES Y.Ma1,Y.Hao1,X.N.Lu1,S.Z.Kou1 (1.State Key Lab. of Advanced Nonferrous Materials, Lanzhou University of Technology, Lanzhou 730050, China) Abstract:Based on the experiment and the thermodynamics analysis for CuO/Al system, it is founded that the compounding reaction of CuO/Al under low temperature is available......
铟J. G. Fife,李树华摘 要:<正> 铟是1863年在确定闪锌矿矿物中是否存在铊时偶然被发现的.今天,铟作为锌,锡,铅,铜矿熔炼与精炼的副产品回收;其中锌矿是回收铟的最重要原料,闪锌矿含铟高达20ppm.关键词:......
of the in-situ composites is better than that of the composites by adding Al2O3. Key words: Al-based metal matrix composites; alumina particle; NH4Al(SO4)2; in situ reaction reaction-processed metal matrix composites[J]. Journal of Jiangsu University, 2003, 24(3): 57-61. [5]Koczak M J, Premkumar M K. Emerging technologies for the in-situ production of MMCs[J]. JOM, 1993, 45(1......
文章编号:1004-0609(2008)S1-0121-05 含铟硫酸浸出液中铟的富集 俞小花1,谢 刚1,李永刚2,刘春侠1,刘 康1 (1. 昆明理工大学 材料与冶金学院,昆明650093;2. 云南冶金集团总公司 技术中心,昆明650031) 摘 要:提出从含铟硫酸溶液中富集铟的试验方案:焙砂预中和-硫化锌精矿还原-石灰石中和沉铟.在一定的实验条件下确定各个工序的最佳条件:焙砂用量为理论量的1.3倍,预中和后溶液的酸度大约降至6 g/L;硫化锌精矿的用量为理论量的2.2~2.3倍,还原后溶液中Fe3+的浓度大约降至0.5 g/L;石灰石的用量为理论量的2.0倍,沉铟后溶液中In3+的浓度降至1 mg/L以下.在此最佳条件下,可使沉铟渣中铟的品位达到0.1%以上. 关键词:铟;预中和;还原;中和沉铟 中图分类号:TF 843.1......
铟M·Fickling,余楚蓉摘 要:<正> 在前两年铟的供求达到惊人增长之后,1989年是巩固的一年.50%以上的精铟产量再一次由欧洲共同体提供,超过用户需求量的50%来自日本.美国比1988年在更大程度关键词:......