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; 1 Introduction Many efforts have been made on using ion exchange resin to separate..., it will be important to synthesize and select the ion exchange resin, which has high adsorption capacity and easy desorption capacity for noble metal Ag(Ⅰ). Amino methylene phosphonic acid resin (APAR......
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离子交换微色谱柱对铬(Ⅵ)吸附行为的研究和分析应用徐卫东1,孙荣1,温小琴1(1.江西省抚州市东华理工大学)摘 要:以分光光度法研究了阴离子交换树脂分离富集Cr(Ⅵ)的最佳条件,优化选择了上柱酸度和洗脱剂,即在pH 4.0 H2SO4介质条件下上柱,用20 g/L NaOH-90 g/L NaCl洗脱.对主要干扰元素铁,钒,钼的最大允许量进行了探讨.微型交换柱对Cr(Ⅵ)的富集倍数为33.3.Cr(Ⅵ)质量浓度在0~0.08μg/mL范围内服从比尔定律,相关系数为0.999 8,检出限为0.002 3μg/mL......
of molybdenum in column experiments. 2 Experimental 2.1 Chemicals and ion exchange resin The weak basic anion exchanger D301 (Tianjin Nankai HECHENG S&T Co., Ltd., Tianjin, China) with tertiary...Trans. Nonferrous Met. Soc. China 28(2018) 1660-1669 Direct extraction of Mo(VI) from acidic leach solution of molybdenite ore by ion exchange resin: Batch and column adsorption studies Yun-feng......
717阴离子交换树脂富集-电感耦合等离子体质谱法测定地质样品中痕量金铂钯李丹1,王锝1,李彪1(1.湖北省武汉市湖北省地质实验研究所)摘 要:研究了717型阴离子交换树脂对地质样品中痕量金,铂,钯的吸附性能及分离条件.采用水浴加热,HCl+王水的方式溶解样品,溶出的干扰元素只有Mo对Pd的测定造成干扰,采用数学公式校正可消除此干扰.在5%的HCl介质中,洗脱剂流速为2 mL/min时,金,铂,钯的富集效果最佳,回收率接近100%.经对共存离子影响的校正,用电感耦合等离子体质谱法测定国家一级标准物质,其结果较认定......
Gongshang University, Hangzhou 310012, China Received 8 June 2009; accepted 25 August 2009 Abstract: A strong acidic ion exchange resin (NKC-9) was used as a new adsorbent material for the removal...: strong acid resin; ion exchange; Co(Ⅱ); adsorption isotherm 1 Introduction During the past decades, the presence of heavy metal ions in the water environment has received extensive attention due......
Recovery of V2O5 from Bayer liquor by ion exchangeZHAO Zhuoa, b, LI Xiaobina, and ZHAO Qingjieb a School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China b Zhengzhou Research Institute of Chalco Ltd., Zhengzhou 450041, China摘 要:A new technology was developed to recover V2O5 from Bayer spent liquor by ion......
of strict discharge specifications [18]. In ion exchange systems, polymeric ion exchange resin (IER) is usually employed. However, IER could be easily poisoned by some organic or inorganic compounds when.../desorption rate and better antipollution ability than ion exchange resin due to the location of function groups [19]. After a number of saturation/regeneration cycles, the fiber is still suitable to further......
techniques, including adopting HCl gas instead of chlorhydric acid solution to acidize borax, thereby reducing the introduction of impurities, ion exchange adsorption resin method and recrystallization... neutralization reaction are as follows: acidolysis temperature is 90 ℃, pH is 3-4, crystallization is under the condition of 8 ℃ for 8 h. During ion exchange adsorption, the volume ratio of anion versus cation......