| 环氧树脂生产中回收环氧氯丙烷含量降低的原因 |
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| 引用本文： | 冯昌勇,胡仙识,刘宏儒.环氧树脂生产中回收环氧氯丙烷含量降低的原因[J].热固性树脂,2005,20(2):47-49. |
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| 作者姓名： | 冯昌勇 胡仙识 刘宏儒 |
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| 作者单位： | 巴陵石化有限责任公司环氧树脂事业部,湖南,岳阳,414014 |
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| 摘 要： | 二步加碱法生产双酚A型环氧树脂的过程中,随着配料批次增加,循环使用的环氧氯丙烷含量会逐渐降低。如果采用同样质量的配比,产品质量中的软化点(或黏度)、环氧当量会逐渐升高。通过色谱分析,发现回收环氧氯丙烷(ECH)中甲苯含量在逐步升高。经过改进相关操作,阻止甲苯进入回收系统,提高回收ECH纯度,即可达到优化生产,提高产品质量的目的。
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| 关 键 词： | 环氧树脂 软化点 气相色谱 |
| 文章编号： | 1002-7432(2005)02-0047-03 |
| 修稿时间： | 2004年8月31日 |
THE CONTENT-DECREASED REASON OF CYCLIC EPICYANOHYDRIN IN EPOXY PRODUCTION |
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| FENG Chang-yong,HU Xian-shi,LIU Hong-ru.THE CONTENT-DECREASED REASON OF CYCLIC EPICYANOHYDRIN IN EPOXY PRODUCTION[J].Thermosetting Resin,2005,20(2):47-49. |
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| Authors: | FENG Chang-yong HU Xian-shi LIU Hong-ru |
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| Abstract: | In bisphenol A epoxy production by two steps adding alkali,the coutent of cyclic epicyanohydrin used to decrease with increase of cyclic index and in this case the softening point and/or epoxide equivalent could be raissed.In the test,the toluene content in cyclic ECH was increased step by step.the toulene was stopped to come into cyclic ECH and the purity of ECH was increased by modifying operation process to optimize the production proess and to increase the quality. |
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| Keywords: | epoxy resin softening point gas chromato-graphy |
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