共搜索到134条信息，每页显示10条信息，共14页。用时：0小时0分0秒602毫秒
): 82-85. ZHAO Hui, HU Shui-ping, WU Hui-bin, LI Tai-quan. Research on mechanism of nucleation of intra-granular ferrite in welding heat affected zone of magnesium treated high-grade pipeline steel[J... and microstructure of ingot samples deoxided by Ti-Mg at 1 873 K were investigated by high temperature tests, SEM-EDS and optical microscopy (OM). The results show that when the Mg content (mass fraction) varies......
nickel slag by selective reduction-magnetic separation process, with an aim to make high-grade nickel and copper concentrate for producing special steel, i.e. stainless steel or weathering steel [14,15... basicity is recommended at 0.15 to obtain relatively high nickel and copper grades in the concentrate with a satisfactory recovery. Fig. 3 Effect of basicity on metal grade (a) and recovery (b) 3.2......
Materials A high-grade cassiterite concentrate was formed by gravity separation of a tin ore, which was obtained from Gaofeng Mining Co., Ltd. in Guangxi Autonomous Region, China. The concentrate... of the particle–bubble were observed and captured by a high-speed camera. Particle–bubble collision and attachment were analyzed with the use of particle–bubble interaction theory to obtain the experimental......
is enriched into leaching residue, the average content of mercury reaches 4993 g/t in the residue, and is 5.23 times that in the ore. The mercury- containing residue is a high-grade mercury concentrate, and can... dioxide is bubbled into the leaching solution. The sodium sulfide leaching-carbon dioxide precipitating method may make reagents recycle back into process and obtain high quality sulfur, with easy operation......
to be above 60% in high-grade andalusite, and 52%-54% in low-grade andalusite. So, concentration process is necessary for industrial needs. There are many methods for andalusite beneficiation... to acicular mullite in parallel with the original crystal and form a strong mullite network, thereby, it has good characteristics such as strong fire resistance and slag resistance, high mechanical......
. Metal recovery from high-grade WEEE: A life cycle assessment [J]. Journal of Hazardous Materials, 2012, 207: 8-14. [13] ZHENG Ya-jie, CHENKun-kun. Leaching kinetics of selenium from selenium...Trans. Nonferrous Met. Soc. China 25(2015) 1307-1314 Sequential removal of selenium and tellurium from copper anode slime with high nickel content Dian-kun LU, Yong-feng CHANG, Hong-ying YANG, Feng......
vanadium grade in stone coal (0.13% to 1.2%), traditional vanadium extraction processes face the problems of large ore tonnage, high energy consumption and acid consumption [8]. The market price of V2O5.... If the V2O5 grade of stone coal increases by 0.1%, the production cost of 1 t of V2O5 would decrease by approximately 4000 CNY, increasing profits by 29% [8]. As a result, only relatively high-grade ore (>......
nickel ore because of the shortage of high-grade nickel sources [1]. The features of silicon magnesium laterite nickel ore are low nickeliferous grade (1%-2%, mass fraction), abundant in associated... is processed hydrometallurgically, such as atmospheric acid-leaching and high pressure acid-leaching [2-4]. However, the stable silicate structure cannot be destroyed to release valuable mineral......
-yong, SONG Xiao-yan. Discussions concerning development of high-grade tungsten products in China[J], Cemented Carbide, 2012, 29(6): 337-343. [3] FREEMANTLE C S, SACKS N, TOPIC M, PINEDA-VARGAS C...标志码:A Preparation of recycled WC-Co composite powder and high wear resistance cemented carbide coating LIU Xue-mei, WANG Hai-bin, SONG Xiao-yan, FAN Jin-lian (College of Materials Science......
on the dynamic recrystallization behavior of high-grade pipeline steels [J]. International Journal of Minerals, Metallurgy, and Materials, 2010, 17(6): 742-747. [12] B, RODRIGUEZ-IBABE J M. Effect...J. Cent. South Univ. (2016) 23: 1007-1014 DOI: 10.1007/s11771-016-3149-2 Dynamic recrystallization behavior and kinetics of high strength steel WU Guang-liang(吴光亮), ZHOU Chao-yang(周超洋), LIU Xin-bin......
