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concentrate and copper-bearing refractory gold ore by iodine-iodide solution YUAN Xi-zhen1, LI Shao-ying1, SUN Chun-bao1, WANG Hai-xia2, ZHAO Liu-cheng1, LI Gen-zhuang1, GUO Lin-zhong3 (1. Key... gold were subjected to iodide/iodine leaching process, respectively, at room temperature. The influences of five factors on the leaching results of the two ore samples were investigated, which include......
Hg2+-碘化物-吖啶橙-聚乙烯醇缔合体系褪色光度法测定痕量汞李咏梅1,2,李人宇2,张龙0,李赞2(1.江苏省连云港市淮海工学院化学工程学院2.江苏省连云港市淮海工学院江苏省海洋资源开发研究院)摘 要:在pH3.6 NaAc-HAc缓冲溶液中,聚乙烯醇存在下,Hg2+与过量的I-和吖啶橙(AO)反应生成稳定的离子缔合物[AO]2[HgI4],使AO褪色,据此建立了褪色光度法测定痕量汞的新方法.最大褪色波长为490 nm,体系的褪色程度与Hg2+浓度在0~0.8μg/mL范围内呈线性关系,表观摩尔吸光系数为9.......
-qing, XIAO Tang-fu. Distribution and occurring forms of thallium and its potential damage to the environments[J]. Acta Mineralogica Sinica, 2005, 25: 230-236. [3] PANDEY G P, SINGH A K, PRASAD S, et al. Development of surfactant assisted kinetic method for trace determination of thallium in environmental samples[J]. Microchemical Journal, 2015, 118(2): 150-157. [4] KAZANTZIS G. Thallium......
process; glycerin; potassium iodide; ammonium chloride 半导体及薄膜太阳电池等材料对金属铟的纯度 要求很高... of thallium by chlorization from refined indium[J]. Chinese Journal of Rare Metals, 2002, 26(3): 191?193. [13] ZENG Dong-ming, ZHOU Zhi-hua, SHU Wan-gen, LIU You-nian, HU Ai-ping. Preparation of 5 N......
455002, China摘 要:<正> The extraction behavior and mechanism of gallium(Ⅲ) and thallium(Ⅰ) or indium(Ⅲ) and thallium(Ⅰ) with Sec-octylphenoxy acetic acid......
+)的干扰可采用抗坏血酸-巯基棉分离去除.方法用于测定河水中镉,结果与原子吸收光谱法一致.相对标准偏差为1.7%~2.0%(n=5),回收率为98%~100%. 关键词:分光光度法; 镉; 离子缔合物; 碘化钾; 吖啶橙; spectrophotometry; cadmium; ion-association complex; potassium iodide; acridine orange......
Mo(Ⅵ)分离.对合成水样中Hg(Ⅱ)进行分离和测定,Hg(Ⅱ)的浮选率在99.3%以上,其他金属离子的浮选率都在2.9%以下.该方法在微量汞的分离和富集分析中有一定的实用价值. 关键词:汞; 四丁基溴化铵; 碘化钾; 浮选分离; mercury; tetrabutyl ammonium bromide; potaium iodide; floatation separation; [全文内容......
were studied. X-ray diffractionstudies demonstrate that there is the formation of compli-cated crystalline phases in crystallized lead iodide basedglasses. By heat treating halide glasses of appropriatecomposition under adequate heating temperature and dura-tion, the lead iodide based glasses could be converted intoglass-ceramics with microcrystal size less lμm of whichmechanical properties......
Photon-Ion Catalysis Synergy Material and Its Application金宗哲,王毅,王圣威,黄丽容摘 要:<正>The co-operation action mechanism and model of photon-ion catalysis synergy material composed of thallium and valency-variable rare earth elements and semiconductor oxide were proposed. The radiation catalysis reactions of water and oxygen assisted by the synergy......
composed of thallium and valency-variable rare earth elements and semiconductor oxide were proposed. The radiation catalysis reactions of water and oxygen assisted by the synergy material that could largely......
