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Trans. Nonferrous Met. Soc. China 25(2015) 3774-3783 Thermodynamic and kinetic of iodine-iodide leaching in gold hydrometallurgy S. S. KONYRATBEKOVA1, A. BAIKONUROVA1, G. A. USSOLTSEVA1, C. ERUST2... June 2015 Abstract: The thermodynamic equilibria and kinetic aspect of gold dissolution in iodine-iodide leaching were studied with emphasis on the effects of pH value and temperature on the system......
) powders were synthesized by using the coprecipitation method with ammo- nium hydrogen carbonate as a precipitant. The results indicated that an extremely loose YAG precursor was obtained when iodine... that the modified coprecipitation method, with iodine as an additive, was superior to the conventional coprecipitation method, to synthesize ultrafine YAG powders.关键词:......
电压12 V,电解不同时间后,阳极液碘质量分数对金沉积率的影响如图2所示. 图2 阳极液碘质量分数对金沉积率的影响 Fig. 2 Effect of iodine content in anode liquid on gold deposition rate 由图2可知,当阳极液碘质量分数为0.1%~0.6%时,随着碘质量分数的增大,金沉积率逐渐上升.阳极液碘质量分数为... A, USSOLTSEVA G A, ERUST C, AKCIL A. Thermodynamic and kinetic of iodine-iodide leaching in gold hydrometallurgy[J]. Transactions of Nonferrous Metals Society of China, 2015, 25(11): 3774-3783. [3] 袁喜振, 李绍英, 孙春宝......
and steam flow rate on iodine adsorption value and regeneration yield of activated carbon was investigated. The response surface methodology (RSM) technique was utilized to optimize the process conditions... conditions result in an activated carbon with an iodine number of 1048 mg/g and a yield of 40%, and the BET surface area evaluated using nitrogen adsorption isotherm is 1493 m2/g, with total pore volume......
癸胺与I-对铝的协同缓蚀作用 汪庆1,葛科2,张胜涛2 (1.成都通迪水处理有限公司,成都,610031;2.重庆大学化学化工学院,重庆,40044) 摘要:应用动电位扫描法和交流阻抗法研究了盐酸介质中KI和癸胺对铝的协同缓蚀作用.结果表明:铝在盐酸中的腐蚀以阴极控制为主;KI和癸胺有较好的协同作用,癸胺在协同体系中对铝的缓蚀起主导作用. 关键词:癸胺; 铝; 缓蚀剂; 协同效应; [全文内容正在添加中] ......
in the iodine titration,conductivity and Seebeck coefficient measurement.Electrical conductivity relaxation method was used to determine the oxygen chemi-cal diffusion coefficient Dchem.The apparent......
in the iodine titration,conductivity and Seebeck coefficient measurement.Electrical conductivity relaxation method was used to determine the oxygen chemi-cal diffusion coefficient Dchem.The apparent......
), which generally act as depressant and collector, respectively, in the reverse flotation of bauxite, was investigated using starch-iodine tests. The results obtained from the blue-value measurements for starch+DDA+iodine system indicate the formation of the inclusion complex for amylose-DDA system at low DDA concentration (<2 mmol/L). However, it is less likely for amylopectin-DDA system......
Study on gold concentrate leaching by iodine-iodideHai-xia Wang1,Chun-bao Sun1,Shao-ying Li1,Ping-feng Fu1,Yu-guo Song2,Liang Li2,Wen-qing Xie31. Key Laboratory of the Ministry of Education of China... extraction by iodine-iodide solution is an effective and environment-friendly method. In this study, the method using iodine-iodide for gold leaching is proved feasible through thermodynamic......
and Cox Zn1-xSe (0<x<0.3) by the method of chemicaltransport, using iodine as a transport agent. The light green color of single crystal CoxZn1-xS as well as the light brown color ofCoxZn1-xSe become......