| 羰基化制备乙酸工艺副产物-重组分残液回收的研究 |
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| 引用本文： | 荆延,华超,校逸,白芳. 羰基化制备乙酸工艺副产物-重组分残液回收的研究[J]. 天然气化工, 2011, 36(4) |
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| 作者姓名： | 荆延 华超 校逸 白芳 |
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| 作者单位： | 1. 北京科技大学化学与生物工程学院,北京,100083
2. 中科院过程与工程研究所,北京,100080 |
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| 摘 要： | 通过刮膜蒸发器脱重和高精密精馏的方法对羰基化制备乙酸工艺副产物-重组分残液回收进行了实验。实验中首先采用刮膜蒸发器对甲醇羰基化制备乙酸后的废液进行初步刮膜蒸发,再进行精密精馏处理最终制得3种高纯度产品—乙酸,乙酰氧基乙酸和乙二醇二乙酸酯。采用气相色谱对分离的各组分进行定量分析。优化了操作参数,并验证了工艺可行性,为工业化放大提供可靠的基础数据。
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| 关 键 词： | 羰基化 乙酸 残液回收 精馏 蒸发 |
Recovery of residue liquid from the process for carbonylation of methanol to acetic acid |
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| JING Yan,HUA Chao,XIAO Yi,BAI Fang. Recovery of residue liquid from the process for carbonylation of methanol to acetic acid[J]. Natural Gas Chemical Industry, 2011, 36(4) |
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| Authors: | JING Yan HUA Chao XIAO Yi BAI Fang |
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| Abstract: | Recovery of the residue liquid from the process for carbonylation of methanol to acetic acid was studied experimentally.The residue liquid firstly was evaporated by the Pope wiped-film molecular still and evaporator,then separated by precise rectification to obtain three high pure products—acetic acid,acetoxyacetic acid and ethylene glycol diacetate.Gas chromatography method was used to determine the separated components quantitatively.The optimized operation parameters of the whole recovery process were obtained and the process feasibility was verified,which provided reliable foundation data for its commercialization. |
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| Keywords: | carbonylation acetic acid residue liquid recovery rectification evaporation |
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