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, the result is also satisfactory, but the treatment of waste solution containing organic substances has to be further investigated. Key words:graphite ore; high grade; chemical method; [全文内容正在添加中] ... to increase the purity of the graphite carbon from 93% to 97%. Study was conducted on leaching agents, time, temperature, stirring speed and concentration of leaching solution affecting the process......
vapor deposition reactor. The substrate surfaces were chemically pretreated by the following two-step etching method: first using Murakami reagent for 1-3min, and second an HNO3:HCl=1:1 solution...CHEMICAL PRETREATMENTS OF THE SURFACE OF WC-15wt%Co WITH DIAMOND COATINGS S.Liu1,Y.X.Li2,D.Q.Yi1,Z.M.Yu1 (1.Department of Materials Science & Engineering, Central South University, Changsha 410083......
Crystal structure and negative thermal expansion of solid solution Lu2W3-xMoxO12Jie Peng1,2), Xin-zhi Liu3), Fu-li Guo4), Song-bai Han3), Yun-tao Liu3), Dong-feng Chen3), and Zhong-bo Hu2) 1) Experimental Physics Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 2) College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy......
J. Cent. South Univ. (2012) 19: 1138-1147 DOI: 10.1007/s11771-012-1120-4 FEM analyses for influences of stress-chemical solution on THM coupling in dual-porosity rock mass ZHANG Yu-jun(张玉军)1, YANG... and chemical actions. The first one is stress corrosion [4]; the second one is pressure solution [5]; the third one is free-face dissolution/precipitation [6]. A great number of studies have been carried......
by stochastic was analyzed using the gas phase chromatogram method. Finally, the deposit in the exhaust pipeline was analyzed using chemical method, too. 2.4 Microstructure of pyrolytic carbon... Densification mechanism of chemical vapor infiltration technology for carbon/carbon composites CHEN Jian-xun(陈建勋), XIONG Xiang(熊 翔), HUANG Qi-zhong(黄启忠), YI Mao-zhong(易茂中), HUANG Bai-yun(黄伯云......
; (4) where kd is the rate constant of the chemical reaction. Dissolution kinetics of Tangdan copper oxide ores in ammonia-ammonium sulphate solution can be described.... Dissolution kinetics of an oxidized copper ore in ammonium chloride solution [J]. Chemical and Biochemical Engineering Quarterly, 2003, 17(4): 261-266. [13] K?NK?L M M, KOCAKERIM S, DEMIRBA? Y A. leaching......
Coating of magnesium powder by rapid expansion of supercritical solution method ZHANG Shu-hai(张树海) School of Chemical and Environmental Engineering, North University of China, Taiyuan 030051... solution technology (RESS) is studied. 2 Priciples of RESS coating method Supercritical fluids (SFs) are fluids that are at temperatures and pressures above their critical points [5]. At critical......
; Abstract: SnO2-CuO nanocomposite powders were prepared by chemical coprecipitation method using SnCl4... improve the cycleability of nano- SnO2. Key words: SnO2; CuO; chemical coprecipitation method; lithium ion batteries; electrochemical properties  ......
Effect of Preparation Method on Surface Area and Crystalline Form of CeO2-ZrO2 Solid Solution 郭杨龙1,郭耘1,王晓红1,卢冠忠1,刘晓晖1,张志刚1,王筠松1 (1.Laboratory for Advanced Materials, Research Institute...:reverse microemulsion method; preparation; CeO2-ZrO2 solid solution; high surface area; crystalline form; rare earths; [全文内容正在添加中] ......
analysis method utilizes the idea of the homotopy from topology to create a convergent series solution for nonlinear frameworks. The series solution unequivocally relies on the auxiliary parameters... ARTICLE J. Cent. South Univ. (2019) 26: 1218-1232 DOI: https://doi.org/10.1007/s11771-019-4082-y Entropy optimization in cubic autocatalysis chemical reactive flow of Williamson fluid subjected......