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Extraction studies of cobalt (Ⅱ) and nickel (Ⅱ) from chloride solution using PC88A LUO Lin(罗 琳)1, WEI Jian-hong(魏建宏)1, WU Gen-yi(吴根义)1, F. TOYOHISA2, S. ATSUSHI3 1. College of Resources...; Abstract: Solvent extraction study of cobalt and nickel were carried out from a chloride solution......
from a vanadium extraction process were studied. An air stripping system was built, consisting of multi-face-ball packed stripping tower and adsorption tower, and pipe line system for circulation... is 7.2 mm/h. Key words: vanadium extraction; ammonia wastewater; air stripping; mass transfer coefficient 高浓度氨氮废水广泛存在于石油化工,有色金属冶炼,化肥,肉食品加工等行业.氨氮废水排入水体尤其是湖泊,海湾等流动较缓慢的水体容易引起藻类等微生物大量繁殖,导致水体富营养化[1......
Effect of vanadium occurrence state on the choice of extracting vanadium technology from stone coalWANG Mingyu XIANG Xiaoyan ZHANG Liping XIAO Liansheng School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China摘 要:<正>The extraction technology of vanadium from stone coal by means of no-salt-roasting and dilute......
Trans. Nonferrous Met. Soc. China 22(2012) 461-466 Thermodynamics and mechanism of vanadium(IV) extraction from sulphate medium with D2EHPA, EHEHPA and CYANEX 272 in kerosene LI Xing-bin,WEI Chang... 2011; accepted 29 September 2011 Abstract: Extraction of vanadium(IV) from sulphate acid solution was studied using organophosphorous-based extractants D2EHPA, EHEHPA and CYANEX 272 in kerosene......
攀钢转炉尘资源循环利用技术研究刘世鸿1(1.昆明理工大学,云南昆明 650093)摘 要:根据攀钢转炉除尘灰特性,研制了用于半钢转炉炼钢的新型复合造渣剂和终渣调渣剂以及用于转炉提钒的冷却剂.分析新型复合造渣剂和终渣调渣剂对转炉冶炼终点氧化性,溅渣护炉,钢铁料消耗以及转炉脱磷效果等影响,拓展了转炉尘资源的使用途径,使攀钢转炉尘资源得到较好的循环经济利用,减轻环保压力.关键词:转炉; 除尘灰; 回收利用; 复合造渣剂; 终渣调渣剂; 提钒冷却剂......
under ambient pressure, and the effects of reaction temperature, alkali-to-ore mass ratios, particle size, and stirring speed on vanadium and chromium extraction were studied. The results suggest that the reaction temperature and KOH-to-ore mass ratio are more influential factors for the extraction of vanadium and chromium. Under the optimal reaction conditions (temperature 180 °C, initial KOH......
that reaction temperature is the most significant factor on vanadium and chromium extraction efficiency. Under the conditions of temperature of 180 ℃, initial KOH-to-ore mass ratio of 4:1, KOH solution content of 75% (mass fraction), stirring speed of 700 r/min, and gas flow of 1 L/min, vanadium and chromium extraction rates obtained are greater than 95% and 90% after 300 min, respectively. The results......
, 2014, 38(1): 146-157. YE Guo-hua, ZHANG Shuang, HE Wei, TONG Xiong, WU Ning. Process mineralogy characteristics of stone coal and its relationship to vanadium extraction[J]. Chinese Journal of Rare...-li, WANG Shao-na, ZHANG Yi. Extraction technology of vanadium and chromium from vanadium slags in presence of activated carbon[J]. The Chinese Journal of Nonferrous Metals, 2014, 24(8): 2171-2180. [8......
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