| 硝基氯苯分离提纯工艺的进展和单塔精馏-结晶工艺的推广 |
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| 引用本文： | 叶永恒. 硝基氯苯分离提纯工艺的进展和单塔精馏-结晶工艺的推广[J]. 现代化工, 2001, 21(1): 40-43 |
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| 作者姓名： | 叶永恒 |
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| 作者单位： | 北京化工大学化学工程学院, |
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| 摘 要： | 硝基氯苯异构物中各组分的提纯工艺经历了3次突破从间歇结晶到连续精馏，从多塔精馏到单塔精馏，成功建立单塔精馏-结晶工艺。单塔精馏-结晶工艺用于新建和改建一批1万～2万t/a的装置。提出现行4500t/a分离装置扩产节能改造方案。
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| 关 键 词： | 硝基氯苯；提纯；单塔精馏；结晶；填料塔 |
| 修稿时间： | 2000-12-01 |
New progress in technologyfor separating nitrochlorobenzene and popularizing it to production |
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| YE Yong-heng. New progress in technologyfor separating nitrochlorobenzene and popularizing it to production[J]. Modern Chemical Industry, 2001, 21(1): 40-43 |
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| Authors: | YE Yong-heng |
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| Abstract: | Breakthroughs have been made three times in purification technology of isomers contained in nitrochlorobenzene,i.e.from batch crystallization to continuous distillation,from multi-tower distillation to single tower distillation,and a production technology based on the single tower distillation-crystallization.Many industrial units of 10 000～20 000 t/a capacity have been constructed.The revamping project to expand production and to save energy for existing 4 500 t/a separation unit is put forward. |
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| Keywords: | nitrochlorobenzene purification single tower distillation crystallizationm packed tower |
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