NaCl存在下氯化亚锡-十六烷基三甲基氯化铵体系浮选分离Pt(Ⅱ)、Pd(Ⅱ)、Rh(Ⅲ)、Au(Ⅲ)  

Flotation Separation of Platinum,Palladium,Rhodium and Gold from Stannous Chloride-Cetyltrimetheylammonium Bromide System in the Presence of Sodium Chloride

作　　者：高云涛[1] 项朋志[2] 施润菊[2] 黄伟清[2] 

机构地区：[1]昆明理工大学材料冶金学院,昆明650031 [2]云南民族大学化学与生物技术学院

出　　处：《应用化学》2007年第9期1092-1094,共3页Chinese Journal of Applied Chemistry

摘　　要：研究了NaCl浓度、SnCl2浓度、十六烷基三甲基氯化铵(CTMAC)用量、NaCl用量对氯化亚锡-十六烷基三甲基氯化铵体系浮选分离铂、钯、铑、金的影响。研究表明,HCl为0.24mol/L,Sn2Cl为0.10mol/L,CTMAC为1.0×10-3mol/L,NaCl为0.1g/mL,浮选前60℃水浴加热10min,对不同含量的贵金属10.0～100.0μg,铂、钯、铑、金的浮选率分别为95.2%～98.0%、97.3%～97.6%、93.4%～97.1%和96.6%～99.1%,在HCl介质中体系可同时浮选铂、钯、铑、金,而常见基体元素如Zn2+、Cd2+、Co2+、Al3+、Cu2+、Fe3+、Ni2+的浮选率低于2.5%,和对阳极泥、砂铂矿、废催化剂样品的分离分析结果与其它方法相符,此方法可用于从量基体金属中分离铂、钯、铑、金。The flotation separation of platinum, palladium, rhodium and gold was studied in aqueous solution containing SnCl2 and cetyltrimetheyl ammonium chloride in the presence of NaCl and HCl medium. After heating a solution of 0. 10 mol/L SnCl2 , 1.0 × 10^- 3 mol/L cetyltrimetyl ammonium chloride, 0. 1 g/mL NaC1 and 0.24 mol/L HCl with water bath at 60 ℃ for 10 min the percent separation of platinum, palladium, rhodium and gold was 95.2% - 98.0%,97.3% - 97.6%,93.4% - 97.1% 和l 96.6% - 99. 1%, respectively with flotation separation. The separation results of the synthetic samples show that the method can separate platinum, palladium, rhodium and gold from a great amount of base metals such as Fe （ Ⅲ ） , Pb（Ⅱ）, Al（Ⅲ）, Cu（Ⅱ）, Zn（Ⅱ）, Ca（Ⅱ）, and this method has been also used for the separation platinum, palladium, rhodium and gold from real samples with satisfactory results.

关 键 词：Pt(Ⅱ) Pd(Ⅱ) Rh(Ⅲ) Au(Ⅲ) 氯化亚锡 十六烷基三甲基氯化铵 液-固浮选分离 

分 类 号：O657.3[理学—分析化学]