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Heterogeneous synthesis of dimethylhexane-1,6-dicarbamate from 1,6-hexanediamine and methyl carbonate in methanol over a CeO2 catalyst
Alternative TitleChin. J. Chem. Eng.
Cao, Yan; Li, Huiquan; Li, Xintao; Wang, Liguo; Zhu, Ganyu; Tang, Qing
2015-02-01
Source PublicationCHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN1004-9541
Volume23Issue:2Pages:446-450
AbstractThe efficient synthesis of dimethylhexane-1,6-dicarbamate (HDC) from 1,6-hexanediamine (HDA) and methyl carbonate over a series of heterogeneous catalysts (e.g., MgO, Fe2O3, Mo2O3, and CeO2) was investigated. The reaction pathway was confirmed as an alcoholysis reaction through a series of designed experiments. Under optimized conditions, 100% HDA conversion with 83.1% HDCtotal and 16.9% polyurea was obtained using a one-step with high temperature procedure with CeO2 as the catalyst. A newtwo-step with variable temperature technology was developed based on the reaction pathway to reduce the polyurea yield. Using the proposed method, the HDCtotal yield reached 95.2%, whereas the polyurea yield decreased to 4.8%. The CeO2 catalyst showed high stability and did not exhibit any observable decrease in the HDC yield or any structural changes after four recycling periods. (C) 2014 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.; The efficient synthesis of dimethylhexane-1,6-dicarbamate (HDC) from 1,6-hexanediamine (HDA) and methyl carbonate over a series of heterogeneous catalysts (e.g., MgO, Fe2O3, Mo2O3, and CeO2) was investigated. The reaction pathway was confirmed as an alcoholysis reaction through a series of designed experiments. Under optimized conditions, 100% HDA conversion with 83.1% HDCtotal and 16.9% polyurea was obtained using a one-step with high temperature procedure with CeO2 as the catalyst. A newtwo-step with variable temperature technology was developed based on the reaction pathway to reduce the polyurea yield. Using the proposed method, the HDCtotal yield reached 95.2%, whereas the polyurea yield decreased to 4.8%. The CeO2 catalyst showed high stability and did not exhibit any observable decrease in the HDC yield or any structural changes after four recycling periods. (C) 2014 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.
KeywordHeterogeneous Methyl Carbonate Dimethylhexane-1 Reaction Pathway 6-dicarbamate Two-step Variable-temperature Technology
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.cjche.2014.03.002
URL查看原文
Indexed BySCI
Language英语
WOS KeywordDIMETHYL CARBONATE ; ALKYL CARBAMATE ; 1,6-HEXAMETHYLENEDIAMINE ; METHOXYCARBONYLATION
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000349606100017
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11703
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Cao, Yan,Li, Huiquan,Li, Xintao,et al. Heterogeneous synthesis of dimethylhexane-1,6-dicarbamate from 1,6-hexanediamine and methyl carbonate in methanol over a CeO2 catalyst[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2015,23(2):446-450.
APA Cao, Yan,Li, Huiquan,Li, Xintao,Wang, Liguo,Zhu, Ganyu,&Tang, Qing.(2015).Heterogeneous synthesis of dimethylhexane-1,6-dicarbamate from 1,6-hexanediamine and methyl carbonate in methanol over a CeO2 catalyst.CHINESE JOURNAL OF CHEMICAL ENGINEERING,23(2),446-450.
MLA Cao, Yan,et al."Heterogeneous synthesis of dimethylhexane-1,6-dicarbamate from 1,6-hexanediamine and methyl carbonate in methanol over a CeO2 catalyst".CHINESE JOURNAL OF CHEMICAL ENGINEERING 23.2(2015):446-450.
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