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Synthesis, Characterization and Application of A Novel Carbon Bridged Half-metallocene Chromium Catalyst for Methyl Methacrylate Polymerization程正载1,2,GONG Kai1,WANG Yang1,ZHOU Xue1,ZHANG Weixing1,LI... of Chemistry, Nankai University摘 要:A new carbon bridged cyclopentadienyl chromium complex of the type [(C5H4)C(CH3)2 CH2(C5H4N)]CrCl2 was prepared by treatment......
Selective depression mechanism of ferric chromium lignin sulfonate for chalcopyrite–galena flotation separationJin-sheng Yu1,Run-qing Liu1,Li Wang1,Wei Sun1,Hong Peng2,Yue-hua Hu11. School... reagents(e.g.,K2Cr2O4)are expensive and adversely affect the environment.In this study,ferric chromium lignin sulfonate(FCLS),which is a waste-product from the paper and pulp industry,was introduced......
New technology for comprehensive utilization of aluminum-chromium residue from chromium salts production LI Xiao-bin(李小斌), QI Tian-gui(齐天贵)1, JIANG Xin-min(江新民)1, ZHOU Qiu-sheng(周秋生)1, LIU Gui...; Abstract: Colloidal aluminum-chromium residue(ACR) was mass-produced in chromate......
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., Hangzhou 311122, China)Abstract:To solve the problem of serious environmental pollution from electroplating chromium process, electroplating Ni-Co-B alloy coatings, which are environment-friendly and with good appearance, were prepared to substitute the hard chromium coating. The effects of electrolyte solution composition and process conditions on the microhardness, appearance, deposition rate......
Engineering, Harbin Engineering University, Harbin 150001, China) Abstract: Chromium doped Nano-MnO2 were synthesized by low temperature solid-state reaction. The charactrization and performance of samples were studied by X-ray diffraction. The results show that the product is the mixture of α-MnO2 and γ-MnO2, the specific capacitances of pure MnO2 and chromium doped MnO2 are 95F/g and 163F/g......
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；CH-1菌 中图分类号:X70 文献标识码:A Selective recovery of chromium from chromium-containing slag by Achromobacter sp. CH-1 CHAI Li-yuan, WANG Yun-yan, WANG Qing-wei (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: A novel technology of chromium recovery from chromium-containing slag by Achromobacter sp. CH-1 based on the principle......
Effect of RE Complex Inoculation on the Fatigue Wear Behaviours of High Chromium Cast Iron王久彬,李庆春摘 要:ＥｆｆｅｃｔｏｆＲＥＣｏｍｐｌｅｘＩｎｏｃｕｌａｔｉｏｎｏｎｔｈｅＦａｔｉｇｕｅＷｅａｒＢｅｈａｖｉｏｕｒｓｏｆＨｉｇｈＣｈｒｏｍｉｕｍＣａｓｔＩｒｏｎＷａｎｇＪｉｕｂｉｎ(ＩｎｓｔｉｔｕｔｅｏｆＩｒｏｎ＆ＳｔｅｅｌＲｅｓｅａｒｃｈ,ＡｎｓｈａｎＩｒ...关键词:......
