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The remarkable effect of organic salts on 1,3,5-trioxane synthesis
  • ISSN号:1004-9541
  • 期刊名称:《中国化学工程学报:英文版》
  • 时间:0
  • 分类:TQ231.14[化学工程—有机化工] TU528.042[建筑科学—建筑技术科学]
  • 作者机构:State Key Laboratory of Heavy Oil Processing and High Pressure Fluid Phase Behavior and Property ResearchLaboratory, China University of Petroleum, Beijing 102249,China
  • 相关基金:the National Natural Science Foundation of China (21576285 and 21276271);Science Foundation of China University of Petroleum, Beijing (qzdx-2011-01)
中文摘要:

1,3,5-trioxane 合成上的器官的盐的效果通过批反应和连续生产实验被调查。使用的器官的盐包括钠 methanesulfonate ( CH 3 NaO 3 S ),钠 benzenesulfonate ( C 6 H 5 NaO 3 S ),钠 4-methylbenzenesulfonate ( C 7 H 7 NaO 3 S ),并且钠3硝基苯 sulfonate ( C 6 H 4 NNaO 5 S )。在反应答案和精华的 1,3,5-trioxane 的收益上的器官的盐的效果跟随顺序 CH 3 NaO 3 S ? 6 H 5 NaO 3 S ? 7 H 7 NaO 3 S ? 6 H 4 NNaO 5 S ,它是相反地与器官的盐的阴离子的费用密度有关。与象镁氯化物那样的 Cl -based 盐比较,器官的盐有不太蚁的酸产生和低腐蚀的优点。在水活动的研究表明在水的活动的器官的盐的效果在器官的盐的低集中是相当小的。紫外可见的光谱学和蒸汽液体平衡实验被执行揭开管理如此的效果的机制。结果证明 1,3,5-trioxane 的收益上的器官的盐的效果首先依靠他们增加硫磺的酸的催化活动并且增加 1,3,5-trioxane 和水并且 1,3,5-trioxane 和 oligomers 的相对轻快的能力。

英文摘要:

The effects of organic salts on 1,3,5-trioxane synthesis were investigated through batch reaction and continuous production experiments. The organic salts used include sodium methanesulfonate(CH3NaO3S), sodium benzenesulfonate(C6H5NaO3S), sodium 4-methylbenzenesulfonate(C7H7NaO3S), and sodium 3-nitrobenzene sulfonate(C6H4NNaO5S). It was shown that the effects of organic salts on the yield of 1,3,5-trioxane in reaction solution and distillate follow the order CH3NaO3S /C6H5NaO3S/C7H7NaO3S/C6H4NNaO5S, which is inversely related to the charge density of the anions of the organic salts. In comparison with Cl–-based salts such as magnesium chloride, organic salts have the advantages of less formic acid generation and low corrosion. Studies on water activity revealed that the effect of organic salts on the activity of water was quite small at low concentration of organic salts. UV–visible spectroscopy and vapor–liquid equilibrium experiments were performed to uncover the mechanisms that govern such effects. The results showed that the effect of organic salts on the yield of 1,3,5-trioxane relies primarily on their ability to increase the catalytic activity of sulfuric acid and increase the relative volatilities of 1,3,5-trioxane and water and of 1,3,5-trioxane and oligomers.

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期刊信息
  • 《中国化学工程学报:英文版》
  • 中国科技核心期刊
  • 主管单位:中国科协
  • 主办单位:中国化学工业与化学工程学会
  • 主编:
  • 地址:北京东城区青年湖路13号
  • 邮编:100011
  • 邮箱:cjche@cip.com.cn
  • 电话:010-64519487/88
  • 国际标准刊号:ISSN:1004-9541
  • 国内统一刊号:ISSN:11-3270/TQ
  • 邮发代号:
  • 获奖情况:
  • 1998年化工系统优秀信息成果一等奖,中国期刊方阵“双效”期刊
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  • 被引量:385