| 除草剂2，4-D水相后氯化合成工艺优化研究 |
| |
| 引用本文： | 刘卫聪,陈素红,陈琦,李正艳,鲍猛. 除草剂2，4-D水相后氯化合成工艺优化研究[J]. 山东化工, 2011, 40(4): 16-19 |
| |
| 作者姓名： | 刘卫聪 陈素红 陈琦 李正艳 鲍猛 |
| |
| 作者单位： | 1. 济南大学,化学与化工学院,山东,济南,250022
2. 山东潍坊润丰化工有限公司,山东,潍坊,262373 |
| |
| 摘 要： | 2，4-二氯苯氧乙酸是一种广泛应用的除草剂和植物生长刺激素，其制备过程为多步有机合成工艺，目前多采用威廉逊醚合成法，但存在有剧毒物质产生、产品含量低、废水量大等问题。本文采用水相后氯化法合成2,4-二氯苯氧乙酸，并对工艺进行了优化研究，减少了污染排放，且目标产物质量好，收率高。研究表明：在苯氧乙酸／水物质的量比1：30，反应温度前低（65℃）后高（85℃），高搅拌强度，氯气过量3％-4％等条件下，粗品外标含量≥95％，进一步处理后产品含量≥96％，游离酚≤0．3％。
|
| 关 键 词： | 2 ,4-二氯苯氧乙酸 水相 后氯化 |
Optimization Study on Aqueous Phase Post-chlorination Synthetic Technology of Herbicide 2,4-D |
| |
| LIU Wei-cong,CHEN Su-hong,CHEN Qi,LI Zheng-yan,BAO Meng. Optimization Study on Aqueous Phase Post-chlorination Synthetic Technology of Herbicide 2,4-D[J]. Shandong Chemical Industry, 2011, 40(4): 16-19 |
| |
| Authors: | LIU Wei-cong CHEN Su-hong CHEN Qi LI Zheng-yan BAO Meng |
| |
| Affiliation: | LIU Wei-cong CHEN Su-hong,CHEN Qi,LI Zheng-yan BAO Meng(1.College of Chemistry and Chemical Engineering,University of Jinan,Jinan 250022,China,2.Shandong Weifang Rainbow Chemical Co.,Ltd.,Weifang 262373,China) |
| |
| Abstract: | 2,4-dichlorophenoxyacetic acid is a versatile chemical used as herbicide and auximone.Its preparation method is multistep.Now the main synthesis method is Williamson's synthesis process.Shortcoming of it were ones like highly toxic by-producting,low output,large waste water let-out and so on.In this paper,aqueous phase post-chlorination process was used and optimized.Pollutant discharge was lessen,target product quality and yield were higher.Study showed that,in conditions as follow,the ratio of phenoxyacet... |
| |
| Keywords: | 2 4-dichlorophenoxyacetic acid aqueous phase post-chlorination |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
