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pyrometallurgy, some lead bullions with many impurity elements will generate in the rectifying tower when crude zinc is rectified. The pure lead is produced by affining. Usually the content of indium...J. Cent. South Univ. Technol. (2008) 15: 835-839 DOI: 10.1007/s11771-008-0154-0 Recovery of indium and lead from lead bullion HE Jing(何 静)1, WANG Rui-xiang(王瑞祥)1, 2, LIU Wei(刘 维)1 (1......
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decreases 75% from 467.1 m/s to 116.8 m/s. The analysis for crude oil properties shows, variety of crude oil temperature can lead to changes of volume and structure of crude oil. It is Fig.2... expansion coefficient; ?T is the temperature difference of crude oil. On the other hand, as a nonideal elasticity substance, lower temperature can lead to the increase of structure strength of gelled......
metallurgy to produce crude lead from lead concentrate and electrolysis of the crude lead to produce electrolytic lead, then chemical synthesis[3-5]. Thus, there is serious pollution due to the emission... Preparation of lead sulfate powder directly from galena concentrates QIN Wen-qing(覃文庆), LIU Hui(刘 辉), TANG Shuang-hua(唐双华), SUN Wei(孙 伟) School of Resources Processing......
Trans. Nonferrous Met. Soc. China 24(2014) 1946-1950 Thermodynamics of removing impurities from crude lead by vacuum distillation refining Xiang-feng KONG1,2, Bin YANG1,2, Heng XIONG1,2, Ling-xin... to remove impurities from crude lead by vacuum distillation. The thermodynamics on vacuum distillation refining process of crude lead was studied by means of saturated vapor pressure of main......
out and the standard material flow diagram was established accordingly, and the impact of energy consumption of crude lead was analyzed when the materials deviated from the standard material flow..., the energy consumption of crude lead reduces. Furthermore, three kinds of material flow occur in the latter process, and the impact energy consumption of crude lead is higher. Key words: SKS lead......
J. Cent. South Univ. Technol. (2008) 15(s1): 288-292 DOI: 10.1007/s11771-008-365-4 Some advances in crude oil rheology and its application ZHANG Jin-jun(张劲军), LIU Xin(柳 歆) (Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum, Beijing 102249, China) Abstract: Waxy crude oil exhibits complex shear-and-thermal-history-dependent non......
J. Cent. South Univ. Technol. (2008) 15(s1): 483-487 DOI: 10.1007/s11771-008-405-0 Simulation of pipelining pours point depressant beneficiated waxy crude oil through China West Crude Oil... Distribution Technology, China University of Petroleum, Beijing 102249, China; 2. CNPC West Pipeline Company, Urumqi 830013, China) Abstract: Flow properties of waxy crude oils, particularly......
are taken as samples, in which the energy consumption data in the production of crude lead in 300 d are selected as the learning samples of LSSVR and the other data in 20 d are selected as the test... and blast furnace are predicted based on SVR, LSSVR and LSSVR-AGA, respectively, as shown in Figures 3 and 4. It can be seen that the actual energy consumption of unit crude lead in bottom-blowing......
J. Cent. South Univ. Technol. (2008) 15(s1): 326-328 DOI: 10.1007/s11771-008-373-4 Non-Newtonian steady shear flow characteristics of waxy crude oil Huang Shu-xin(黄树新)1, Chen Xin(陈 鑫)1, Lu... on the non-Newtonian flow characteristic of a waxy crude oil was conducted through a rotational parallel-plates rheometer system. The test temperature is about 6.5 ℃ higher than its gel point......
