CAJ | 학술논문

4-叔丁基-2-(α-甲基苄基)苯酚(t-BAMBP)是分离纯化Rb和Cs的萃取剂,应用t-BAMBP的萃取色谱法分离流程简便、高效,对Cs的去污系数大于106,Rb的化学回收率大于80%.以前t-BAMBP的合成方法是以对叔丁基苯酚和苯乙烯为起始原料,Lewis酸催化.为了改进反应条件,提高产率,以对叔丁基苯酚和苯乙烯为起始原料,以氯铝酸离子液体作催化剂,合成了t-BAMBP.通过对此烷基化反应的研究,考察了离子液体的组成和用量、反应时间、反应温度以及反应物配比等主要参数对t-BAMBP生成的影响,结果表明,氯铝酸离子液体([BuMeIm]Br-AlCl_3)对合成t-BAMBP的烷基化反应具有良好的催化作用;最佳反应条件为:反应物4-特丁基苯酚和苯乙烯摩尔比为1∶1.2,离子液体催化剂的组成x(AlCl_3)=0.67,离子液体用量为1∶0.10(4-特丁基苯酚/离子液体摩尔比),加热60 ℃以上反应5 min;在最佳反应条件下,t-BAMBP的产率可达40.6%.
4-숙정기-2-(α-갑기변기)분분(t-BAMBP)시분리순화Rb화Cs적췌취제,응용t-BAMBP적췌취색보법분리류정간편、고효,대Cs적거오계수대우106,Rb적화학회수솔대우80%.이전t-BAMBP적합성방법시이대숙정기분분화분을희위기시원료,Lewis산최화.위료개진반응조건,제고산솔,이대숙정기분분화분을희위기시원료,이록려산리자액체작최화제,합성료t-BAMBP.통과대차완기화반응적연구,고찰료리자액체적조성화용량、반응시간、반응온도이급반응물배비등주요삼수대t-BAMBP생성적영향,결과표명,록려산리자액체([BuMeIm]Br-AlCl_3)대합성t-BAMBP적완기화반응구유량호적최화작용;최가반응조건위:반응물4-특정기분분화분을희마이비위1∶1.2,리자액체최화제적조성x(AlCl_3)=0.67,리자액체용량위1∶0.10(4-특정기분분/리자액체마이비),가열60 ℃이상반응5 min;재최가반응조건하,t-BAMBP적산솔가체40.6%.
The 4-tert-butyl-2-(α-methylbenzyl ) phenol (t-BAMBP) is used for the separation of Rb and Cs by means of extraction-chromatography. The radiochemical separation procedure of Rb is simple and efficient. Decontamination factor for Cs is more than 106, and recovery ratio for Rb is more than 80%. Traditionally, the t-BAMBP was synthesized based on p-tert-butylphenol and styrene as raw material, Lewis acid as catalyst. In order to improve the reactive condition and increase the yield of t-BAMBP, the ionic liquid, chloride-aluminium (Ⅲ) chloride, was used as catalyst. The alkylation had been investigated, and higher conversion was obtained. The effects of catalyst composition and quantity, reaction temperature and time, ration of reactant were studied. The results show that the ionic liquids have better catalytic performance for the title reaction. The optimal synthetical conditions are as follows: in the reaction, the mole fraction of x(AlCl_3) in ionic liquid is 0.67, the mole ratio of ionic yield of t-BAMBP is 40.6%.