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学科主题: Engineering
题名: Synthesis of High-Purity Methylal via Extractive Catalytic Distillation
作者: Liu, HZ (Liu, Hongzhong); Gao, HY (Gao, Hongyan); Ma, YB (Ma, Yubo); Gao, ZX (Gao, Zhixian); Eli, WMJ (Eli, Wumanjiang)[
关键词: Cation-exchange resin ; Extractive catalytic distillation ; Formalin ; Methanol ; Methylal
刊名: Chemical Engineering and Technology
发表日期: 2012
DOI: 10.1002/ceat.201100446
卷: 35, 期:5, 页:841-846
摘要: An integrated continuous process, which combines catalytic distillation and extractive distillation in one column, is investigated for the synthesis of high-purity methylal from methanol and formalin in the presence of a cation-exchange resin catalyst. A feed with methanol:formaldehyde 2:1 molar ratio is chosen to evaluate the effects of operating parameters, such as extractant feeding position, ratio of extractant to feed, reflux ratio, and reboiler temperature, on the continuous synthesis of methylal. Under the optimum operating conditions and with water as extractant, the extractive catalytic distillation process operated continuously, producing a methylal purity of 98.7% (H2O: <1.30%) with 98.0% formaldehyde conversion. An integrated continuous process combining catalytic distillation and extractive distillation in one column is applied for high-purity methylal synthesis from methanol and formalin in the presence of a cation-exchange resin catalyst. Under optimum conditions, using water as extractant, the extractive catalytic distillation process provided a methylal purity of 98.7% with 98.0% formaldehyde conversion. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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内容类型: 期刊论文
URI标识: http://ir.xjipc.cas.cn/handle/365002/1389
Appears in Collections:新疆维吾尔自治区精细化工工程技术研究中心_期刊论文

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作者单位: Chinese Acad Sci, Shanxi Inst Coal Chem, Taiyuan 030001, Shanxi, Peoples R China;Yili Normal Univ, Yining, Peoples R China;Chinese Acad Sci, Grad Univ, Beijing, Peoples R China;Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Xinjiang, Peoples R China

Recommended Citation:
Liu, HZ ,Gao, HY ,Ma, YB ,et al. Synthesis of High-Purity Methylal via Extractive Catalytic Distillation[J]. Chemical Engineering and Technology,2012,35(5):841-846.
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