| 降膜脱酚提纯双酚A |
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| 引用本文： | 张宗礼,刘文玉,杨志祥,吕慧生,宋卫. 降膜脱酚提纯双酚A[J]. 石油化工, 1997, 0(7) |
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| 作者姓名： | 张宗礼 刘文玉 杨志祥 吕慧生 宋卫 |
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| 作者单位： | 天津大学北洋科技开发公司 |
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| 摘 要： | 研究使用新型降膜管用脱酚法提纯双酚Ａ过程，考察分析了温度、真空度、降液密度、汽提等情况对脱酚效果的影响。发现在２２４℃，真空度６６６．６Ｐａ，降液密度５００～１０００ｋｇ／（ｍｈ），氮气加入量为２．４ｋｇ／ｋｇ双酚Ａ的情况下，经过两次降膜脱酚可以把双酚Ａ中的苯酚含量降到（２～４）×１０－５。
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| 关 键 词： | 降膜 双酚A 脱酚 |
Small Pilot Plant Test of Purifying Bisphenol A by Dephenolizing with Falling Film Evaporator |
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| Zhang Zongli,Liu Wenyu,Yang Zhixiang,L Huisheng and Song Wei. Small Pilot Plant Test of Purifying Bisphenol A by Dephenolizing with Falling Film Evaporator[J]. Petrochemical Technology, 1997, 0(7) |
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| Authors: | Zhang Zongli Liu Wenyu Yang Zhixiang L Huisheng Song Wei |
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| Abstract: | In this paper,the dephenolizing effect of temperature,vacuum,falling liquid density,stripping,etc.on the process of purifying bisphenol A by falling film evaporator with a special falling film tube was studied.The content of phenol in bisphenol A product can be decreased to (2～4)×10 -5 after twice operation at 224℃,and under a vacuum of 666.6Pa,the falling liquid density is 500～1000kg·(m·h) -1 ,and the amount of nitrogen added is 2.4kg/kg bisphenol A. |
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| Keywords: | falling film bisphenol A dephenolize |
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