中国有色金属学报
中國有色金屬學報
중국유색금속학보
THE CHINESE JOURNAL OF NONFERROUS METALS
2001年
3期
518-521
,共4页
黄昆%陈景%崔宁%吴瑾光%周维金%闫文飞
黃昆%陳景%崔寧%吳瑾光%週維金%閆文飛
황곤%진경%최저%오근광%주유금%염문비
金%表面活性剂%溶剂萃取%盐析效应
金%錶麵活性劑%溶劑萃取%鹽析效應
금%표면활성제%용제췌취%염석효응
研究了阳离子表面活性剂萃取剂惰性稀释剂Au(CN)-2体系萃金过程中盐析效应的规律。结果表明盐析剂的加入反而降低了金的萃取率。这说明盐析剂的作用机制与萃合物在负载有机相中的存在状态及结构密切相关。盐析剂的加入降低了水相中水分子的活度,不利于生成有机相中以水分子为桥的CTMA+*H2O*TBP缔合大阳离子萃合物。对传统的溶剂萃取盐析效应提出了一些新的观点。
研究瞭暘離子錶麵活性劑萃取劑惰性稀釋劑Au(CN)-2體繫萃金過程中鹽析效應的規律。結果錶明鹽析劑的加入反而降低瞭金的萃取率。這說明鹽析劑的作用機製與萃閤物在負載有機相中的存在狀態及結構密切相關。鹽析劑的加入降低瞭水相中水分子的活度,不利于生成有機相中以水分子為橋的CTMA+*H2O*TBP締閤大暘離子萃閤物。對傳統的溶劑萃取鹽析效應提齣瞭一些新的觀點。
연구료양리자표면활성제췌취제타성희석제Au(CN)-2체계췌금과정중염석효응적규률。결과표명염석제적가입반이강저료금적췌취솔。저설명염석제적작용궤제여췌합물재부재유궤상중적존재상태급결구밀절상관。염석제적가입강저료수상중수분자적활도,불리우생성유궤상중이수분자위교적CTMA+*H2O*TBP체합대양리자췌합물。대전통적용제췌취염석효응제출료일사신적관점。
The abnormal influence of salting-out agent on the Au(CN)-2 solvent extraction by CTMAB was discussed. The results show that the addition of salting-out agent decreases the gold extraction, which means the action mechanism of salting-out agents is closely related with the existence state and structure of the extractive complex in the loading-organic phases. The addition of salting-out agent decreases the activity of H2O in the aqueous phases, harms to the formation of CTMA+*H2O*TBP. These results also bring some new ideas into the traditional theories of solvent extraction salting-out effect.