化学研究与应用
化學研究與應用
화학연구여응용
CHEMICAL RESEARCH AND APPLICATION
2014年
8期
1346-1350
,共5页
羟基乙酸%络合萃取%成键机理%模型公式%结合比例
羥基乙痠%絡閤萃取%成鍵機理%模型公式%結閤比例
간기을산%락합췌취%성건궤리%모형공식%결합비례
glycolic acid%complexation extraction%bonding mechanism%model formula%combinative number
以三辛胺和正辛醇为萃取剂,对羟基乙酸进行萃取分离,通过萃取有机相红外谱图的分析,得出络合萃取过程中羟基乙酸与萃取相之间的成键机理为离子缔合与氢键结合。然后,根据萃取中存在的络合萃取平衡、物理萃取平衡和电离平衡,推导出羟基乙酸分配系数模型公式。将达到平衡时的油水两相羟基乙酸浓度值与分配系数的模型公式相结合,得出萃取形成的络合物中,羟基乙酸与三辛胺的结合比例为1∶1和2∶1。
以三辛胺和正辛醇為萃取劑,對羥基乙痠進行萃取分離,通過萃取有機相紅外譜圖的分析,得齣絡閤萃取過程中羥基乙痠與萃取相之間的成鍵機理為離子締閤與氫鍵結閤。然後,根據萃取中存在的絡閤萃取平衡、物理萃取平衡和電離平衡,推導齣羥基乙痠分配繫數模型公式。將達到平衡時的油水兩相羥基乙痠濃度值與分配繫數的模型公式相結閤,得齣萃取形成的絡閤物中,羥基乙痠與三辛胺的結閤比例為1∶1和2∶1。
이삼신알화정신순위췌취제,대간기을산진행췌취분리,통과췌취유궤상홍외보도적분석,득출락합췌취과정중간기을산여췌취상지간적성건궤리위리자체합여경건결합。연후,근거췌취중존재적락합췌취평형、물리췌취평형화전리평형,추도출간기을산분배계수모형공식。장체도평형시적유수량상간기을산농도치여분배계수적모형공식상결합,득출췌취형성적락합물중,간기을산여삼신알적결합비례위1∶1화2∶1。
The complexation extraction mechanism of glycolic acid was researched using tri-n-octylamine and 1-octanol as extractant. Firstly,the bonding mechanism between glycolic acid and the extraction phase were analyzed to be ion bonding and hy-drogen bonding via analying IR spectra of extraction organic phase;secondly,according to the description of complexation extraction equilibrium,the physical extraction equilibrium and ionization balance during the extraction process,the formula of distribution coef-ficient model of glycolic acid was derived;finally,the combinative number of the complex was calculated to be 1∶1 and 2∶1.