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Effective rare earth extraction from Nd-Fe-B waste by liquid cuprum extraction methodKe Xu1,Junru Xiao1,Zhongwu Liu1,21. School of Materials Science and Engineering,South China University of Technology摘 要:Recovery of rare earth(RE) elements from Nd-Fe-B waste is one of the ways to solve the problem of socalled RE-crisis,An alternative approach......
rejection control for boiler–turbine unit DONG Junyi, SUN LI, LI Donghai (State Key Laboratory of Power Systems, Department of Thermal Engineering, Tsinghua University, Beijing 100084, China) Abstract: Considering that the boiler–turbine unit, which has strong coupling, large inertia and parameter uncertainties, is a critical part to the modern power plant, a novel flexible active disturbance......
USE OF INDUSTRIAL WASTE OF PERLITE IN BUILDING MATERIALS INDUSTRY孙复强,马保国摘 要:<正> We have observed the components, structure andproperties of perlite ore. Through a series of ex-periments, it has been proved that the perlite hashigher pozzolanic activity and maybe used as addi-tion of cement in manufacturing pozzolanic cement.The paper also proposes......
Effects of mechanical activation on the kinetics of terbium leaching from waste phosphors using hydrochloric acid谭全银1,李金惠11. State Key Joint Laboratory of Environment Simulation and Pollution Control,School of Environment,Tsinghua University摘 要:The effect of mechanical activation(MA) on the kinetics of terbium(Tb) leaching from waste phosphors using......
Effects of mechanical activation on the kinetics of terbium leaching from waste phosphors using hydrochloric acid谭全银1,李金惠11. State Key Joint Laboratory of Environment Simulation and Pollution Control,School of Environment,Tsinghua University摘 要:The effect of mechanical activation(MA) on the kinetics of terbium(Tb) leaching from waste phosphors using......
J. Cent. South Univ. (2021) 28: 1990-2002 DOI: https://doi.org/10.1007/s11771-021-4747-1 Performance of engineered cementitious composite containing stone slurry powder waste Maninder SINGH, Babita.... Performance of engineered cementitious composite containing stone slurry powder waste [J]. Journal of Central South University, 2021, 28(7): 1990-2002. DOI: https://doi.org/10.1007/s11771-021-4747-1......
Cement Treated Recycled Demolition Waste as a Road Base Material玄东兴摘 要:To enhance the performance of mix granulate road base courses by cement treatment. The mechanical properties of cement treated mix granulate (CTMG) were studied, which was designed with 65% crushed masonry and 35% crushed concrete by mass. The central composite design was employed......
SA-335P22高压锅炉管缺陷分析及改进措施刘合萍1,田研1(1.湖南省衡阳市湖南衡阳钢管(集团)有限公司技术中心)摘 要:SA-335P22高压锅炉管穿孔后管体表面出现大量裂纹,其形貌特殊且分布无规律.通过对裂纹进行金相和扫描电镜分析,以及对铸坯酸洗和低倍酸浸分析,确定该穿孔裂纹是由铸坯内部裂纹引起.采取降低中间包的过热度,适当降低拉坯速度,减小铸坯的二次冷却强度等措施,对减少这种缺陷的出现有明显的效果. 关键词:高压锅炉管； 内部裂纹； 连铸圆管坯......
Q370R锅炉和压力容器用钢板的研制张军1,董瑞峰1,王栋1,孙丽钢1,温利军1(1.内蒙古自治区包头市包钢(集团)公司薄板坯连铸连轧厂)摘 要:采用包钢宽厚板先进的炼钢连铸,双机架轧制和热处理生产工艺路线,生产了两种不同化学成分的Q370R锅炉和压力容器用钢板.试验结果表明:包钢生产的压力容器钢Q370R组织均匀,性能优良,抗层状撕裂能力达到Z35钢要求.试验中也研究了Ni元素对Q370R锅炉和压力容器用钢板力学性能的影响.关键词:锅炉和压力容器用钢； Q370R钢； 力学性能； Ni元素......
Leaching and recycling of zinc from liquid waste sediments PENG Bing(彭 兵), GAO Hui-mei(高慧妹), CHAI Li-yuan(柴立元), SHU Yu-de(舒余德) School of Metallurgical Science and Engineering, Central South... Production,2007, 15(8/9): 862-877. [5] JHA M K, KUMAR V, BAGCHI D, SINGH R J, LEE J C. Processing of rayon waste effluent for the recovery of zinc and separation of calcium using thiophosphinic extractant......
