摘要
为查明铜溶剂萃取过程的界面乳化机理,通过建立萃取剂的体积分数与萃取剂对红外光的吸光度间关系的标准曲线,研究了铁矾和高岭土固体微粒对萃取剂的吸附行为,并借助表面张力仪考察了铁矾和高岭土微粒对水相-萃取有机相间界面张力的影响。结果表明,铁矾等固体微粒对有机溶剂的吸附作用降低了水相-萃取有机相间的界面张力,促进了界面乳化物的形成和稳定。
To identify the interfacial emulsification mechanism in copper solvent extraction process, the adsorption behavior of bauxite and kaolin solid panicles on extraetant was studied by establishing the standard curve of relationship between the volume fraction of extraetant and the infrared absorption of extractant ; and by means of a surface tensiometer, the effect of bauxite and kaolin solid panicles on the interface between water phase and extractant organic phase. The results indicate that the adsorption of the solid panicles such as bauxite ones on organic solvents can reduce the tension of interface between water phase and extractant organic phase, thus promoting the formation and stability of interfacial emulsions.
出处
《金属矿山》
CAS
北大核心
2007年第12期72-74,85,共4页
Metal Mine
基金
"973"国家重点基础研究发展规划项目(编号:2004CB619206)
国家"十五"科技攻关项目(编号:2004BA615A-14)
关键词
铜溶剂
固体微粒
吸附
界面张力
乳化物
Copper solvent, Solid panicle, Adsorption, Interface tension, Emulsification
