Synthesis of High-Purity Methylal via Extractive Catalytic Distillation
Liu, HZ (Liu, Hongzhong); Gao, HY (Gao, Hongyan); Ma, YB (Ma, Yubo); Gao, ZX (Gao, Zhixian); Eli, WMJ (Eli, Wumanjiang)[
2012
发表期刊CHEMICAL ENGINEERING & TECHNOLOGY
ISSN9307516
卷号35期号:5页码: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.
关键词Cation-exchange Resin Extractive Catalytic Distillation Formalin Methanol Methylal
学科领域Engineering
DOI10.1002/ceat.201100446
WOS记录号WOS:000303117700012
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被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/1389
专题新疆维吾尔自治区精细化工工程技术研究中心
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
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Liu, HZ ,Gao, HY ,Ma, YB ,et al. Synthesis of High-Purity Methylal via Extractive Catalytic Distillation[J]. CHEMICAL ENGINEERING & TECHNOLOGY,2012,35(5):841-846.
APA Liu, HZ ,Gao, HY ,Ma, YB ,Gao, ZX ,&Eli, WMJ .(2012).Synthesis of High-Purity Methylal via Extractive Catalytic Distillation.CHEMICAL ENGINEERING & TECHNOLOGY,35(5),841-846.
MLA Liu, HZ ,et al."Synthesis of High-Purity Methylal via Extractive Catalytic Distillation".CHEMICAL ENGINEERING & TECHNOLOGY 35.5(2012):841-846.
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