| 一种新的双叔胺化学萃取剂的研究 |
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| 引用本文： | 阎峰,赵鸣玉,程侣柏. 一种新的双叔胺化学萃取剂的研究[J]. 精细化工, 1999, 16(3): 44-46 |
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| 作者姓名： | 阎峰 赵鸣玉 程侣柏 |
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| 作者单位： | 1. 沈阳化工学院,精细化工系,辽宁,沈阳,110021
2. 大连理工大学,精细化工国家重点实验室,辽宁,大连,116012 |
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| 基金项目： | 大连理工大学精细化工国家重点实验室开放基金 |
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| 摘 要： | 以十二烷基苯为原料，经硝化、加氢和Ｎ 烷化制得一种以双叔胺２，４ 二（Ｎ，Ｎ 二己基）氨基十二烷基苯为主要成分的新萃取剂。其中硝化采用混酸硝化法，分两步进行，收率为９２．６％；加氢采用５％（ｗ）钯－炭催化剂，在５５℃、１．２～０．５ＭＰａ下进行，收率为９２．０％；Ｎ 烷化采用季铵盐相转移催化剂催化，在氢氧化钠水溶液中、回流温度下进行，最终产物中主产物含量不低于５１．６％。在异辛醇为稀释剂、２５℃及相比为１的萃取条件下，该萃取剂对硫酸的萃取率比三辛胺提高了５６．９％。
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| 关 键 词： | 双叔胺；萃取剂；合成 |
Research on a New Di-tertiary Amine Chemical Extractant |
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| YAN Feng,ZHAO Ming-yu,CHENG Lü-bai. Research on a New Di-tertiary Amine Chemical Extractant[J]. Fine Chemicals, 1999, 16(3): 44-46 |
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| Authors: | YAN Feng ZHAO Ming-yu CHENG Lü-bai |
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| Affiliation: | YAN Feng;(1.Department of FineChemicals,Shenyang Institute of Chemical Technology,Shenyang 110021,China; 2.State KeyLaboratory of Fine Chemicals,Dalian University of Technology,Dalian 116012,China) |
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| Abstract: | A new extractant in which the main component is ditertiary amine2,4bis( N,N dihexyl)amino dodecylbenzene was prepared from dodecylbenzene through nitration,hydrogenation and N alkylation.The nitration was conducted twice with mixed acid,the yield was 92.6%;the hydrogenation was carried out at 55,1.20.5MPa,5% Pd-C as catalyst,the yield was 92.0%;catalyzed by quarternary ammonium salt phase transfer catalyst,the N alkylation was conducted in aqueous solution of sodium hydroxide,at refluxing temperature,the content of the main product was no less than 51.6%.Under extracting conditions of using 2ethyl hexanol as diluent,temperature 25,and phase ratio 1,etc.,its extraction rate for sulfuric acid was 56.9% higher than that of trioctylamine.= |
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| Keywords: | ditertiary amine extractant synthesis= Foundation item: Granted by the open fund of state key laboratory of fine chemicals Dalian university of technology(97009) |
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