Extraction of Precious Metals with a New Amide Extractant

被引：9

作者：

Huang, Ying ^{[1
]}

Li, Nan ^{[1
]}

Li, Yonghua ^{[1
]}

Wu, Jian ^{[1
]}

Li, Shanghua ^{[1
]}

Chen, Sheng ^{[1
]}

Zhu, Lin ^{[1
]}

机构：

[1] Southeast Univ, Dept Environm Sci & Technol, Key Lab Energy Thermal Convers & Control, Minist Educ,Sch Energy & Environm, Sipailou 2, Nanjing, Jiangsu, Peoples R China

来源：

SELECTED PROCEEDINGS OF THE EIGHTH INTERNATIONAL CONFERENCE ON WASTE MANAGEMENT AND TECHNOLOGY | 2014年 / 878卷

关键词：

Precious metals; Amide extractant; Synthesis; Solvent extraction; HYDROCHLORIC-ACID SOLUTION; LIQUID-LIQUID-EXTRACTION; MONOAMIDE COMPOUNDS; SOLVENT-EXTRACTION; PALLADIUM(II); MEDIA; PLATINUM(IV);

D O I：

10.4028/www.scientific.net/AMR.878.399

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Precious metals are used widely in electronic industry because of their excellent heat resistance, corrosion resistance and catalytic property. Therefore it is important to recycle precious metals from E-waste. In this study, a new amid extractant N,N'-Dimethyl-N,N'-didecyl-3-thiopentanediamide (MDTDGA) was firstly synthesized through N-alkylated and N-acylation reaction. The extraction behavior of precious metals with MDTDGA in 80% dodecane-20% 2-ethylhexanol from hydrochloric acid was studied. The extraction ration increases with HC1 concentration and extractant concentration, but it is not influenced by le concentration. It is indicated that the extraction of precious metals Pd(II), Pt(IV), Au(III) with MDTDGA is neutral coordination. High extraction efficiency of Au(III) of 99.5% using MDTDGA was obtained.

引用

页码：399 / +

页数：2

共 20 条

[1] MECHANISTIC STUDIES ON THE EXTRACTION OF PALLADIUM(II) WITH DIOCTYL SULFIDE [J].