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concentration in solution phase is 20 g/L. The indium extraction is conducted at 298 K by three-stage counter-current process. Table 7 Composition of recycle leaching solutions Table 8 Composition... circularly by the method of simulated counter-current extraction. The results of using the first batch of solution are listed in Table 14. As shown in Table 14, it can be seen that the extraction ratio......
Chuanxiong affecting heart, brain and vessel diseases [3-5]. It was purified from Ligusticum Chuanxiong by high-speed counter-current chromatography [6]. Some of organic acids, including ferulic acid..., CHEN F. Preparative isolation and purification of chuanxiongzine from the medicinal plant Ligusticum Chuanxiong by high-speed counter current chromatography[J]. J Chromatogr A, 2004(1047): 249- 253......
by DOUGLAS et al [4] in United Kingdom. The fluidized counter-current cascade principle was proposed and applied to the beneficiation of sand and carbon mixtures by BEECKMANS and his coworkers.... [5] BEECKMANS J M, MINH T. Separation of mixed granular solids using the fluidized counter current cascade principle [J]. The Canadian Journal of Chemical Engineering, 1977, 55(5): 493-496. [6......
and effective interfacial area. The results show that the counter current gas flow velocity has great influence on the previously mentioned parameters. Key words: gas-liquid two-phase flow; structured...: Breakdown into the contributing mechanisms by CFD modeling[J]. Chemical Engineering Science, 2003, 58(2): 163-177. [9] Higler A P, Krishn R, Ellenberger J, et al. Counter-current operation......
, a scrubbing isotherm was prepared (Figure 10). The theoretical scrubbing stages for sodium removal were determined to be 4. On the basis of the sodium scrubbing isotherm, a counter-current scrubbing... a four-stage counter-current scrubbing with deionised water at a phase ratio of 4:1, a sodium scrubbing efficiency of 88.2% was obtained. A 94.2% potassium stripping efficiency was accomplished with 1......
Wen-ying, LI Wei. Selective recovery of nickel and cobalt from cobalt-enriched Ni-Cu matte by two-stage counter-current leaching [J]. Separation and Purification Technology, 2008, 60(2): 113-119. [2......
of 65.7% are obtained under optimized conditions. References [1] SHEN Yong-feng, XUE Wen-ying, LI Wei. Selective recovery of nickel and cobalt from cobalt-enriched Ni-Cu matte by two-stage counter-current......
extraction factor for minimum production cost in counter current extraction[J]. The Chinese Journal of Nonferrous Metals, 2001, 11(6): 1131-1135. [14]钟盛华. 串级萃取最优化理论和精确计算优化萃取比新方程[J]. 应用化学, 2001, 18(10): 821-824. ZHONG Sheng-hua. Optimization theory on counter-current extraction, and a precise calculation equation for optimized extraction factor[J]. Chinese Journal of Applied Chemistry, 2001, 18(10......
是可行的,对废旧高温合金综合回收镍和钴提供了一定的借鉴作用. 参考文献: [1] 李爱兰, 曾變榕, 曹腊梅. 航空发动机高温材料的研究现状[J]. 材料导报, 2003, 17(2): 26-28. LI Ailan, ZENG Xierong, CAO Lamei. Current status of reseach on high temperatature metarials... at high pressure[J]. Chinese Journal of Rare Metals, 2012, 36(1): 149-153. [11] Shen Y F, Xue W Y, Li W. Selective recovery of nickel and cobalt from cobalt-enriched Ni-Cu matte by two-stage counter......
] ZHU Xiao-bo, ZHANG Yi-min, HUANG Jing, LIU Tao, WANG Yi. A kinetics study of multi-stage counter-current circulation acid leaching of vanadium from stone coal [J]. International Journal of Mineral... [J]. Transaction of Nonferrous Metals Society of China, 2009, 19(5): 1342-1347. [4] LAI Lan-ping, ZHOU Li-pu, HAN Gang, LUO Xing-ping. The red mud reclaims synthetically and makes use of current......