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Heterogeneous Catalytic Methoxycarbonylation of 1,6-Hexanediamine by Dimethyl Carbonate to Dimethylhexane-1,6-dicarbamate
Alternative TitleInd. Eng. Chem. Res.
Li, Hui-Quan; Cao, Yan; Li, Xin-Tao; Wang, Li-Guo; Li, Feng-Jiao; Zhu, Gan-Yu
2014-01-15
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume53Issue:2Pages:626-634
AbstractA nonphosgene route for synthesis of dimethylhexane-1,6-dicarbamate (HDC) by methoxycarbonylation of 1,6-hexanediamine (HDA) with dimethyl carbonate (DMC) using AlSBA-15 as a heterogeneous catalyst was proposed. Catalyst was characterized, and effects of catalyst concentration, DMC to HDA molar ratio, reaction temperature, and reaction time were investigated. Results showed that AlSBA-15 exhibited high catalytic activity because of its large surface area and average pore diameter as well as acidity because of impregnation with Al. Under the optimum conditions of 5% Al incorporation, 5% catalyst concentration, 6:1 DMC to HDA molar ratio, 70 degrees C reaction temperature, and 35 h reaction time, the HDC yield reached 84.2%. Catalyst was easily separated, and no obvious deactivation was found even after the catalyst was used four times. Interactions of AlSBA-15 with the substrates were also studied by quasi in situ Fourier transform infrared (FTIR), and a possible reaction mechanism was proposed.; A nonphosgene route for synthesis of dimethylhexane-1,6-dicarbamate (HDC) by methoxycarbonylation of 1,6-hexanediamine (HDA) with dimethyl carbonate (DMC) using AlSBA-15 as a heterogeneous catalyst was proposed. Catalyst was characterized, and effects of catalyst concentration, DMC to HDA molar ratio, reaction temperature, and reaction time were investigated. Results showed that AlSBA-15 exhibited high catalytic activity because of its large surface area and average pore diameter as well as acidity because of impregnation with Al. Under the optimum conditions of 5% Al incorporation, 5% catalyst concentration, 6:1 DMC to HDA molar ratio, 70 degrees C reaction temperature, and 35 h reaction time, the HDC yield reached 84.2%. Catalyst was easily separated, and no obvious deactivation was found even after the catalyst was used four times. Interactions of AlSBA-15 with the substrates were also studied by quasi in situ Fourier transform infrared (FTIR), and a possible reaction mechanism was proposed.
KeywordAliphatic-amines Al-sba-15 Step
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ie4029945
URL查看原文
Indexed BySCI
Language英语
WOS KeywordALIPHATIC-AMINES ; AL-SBA-15 ; STEP
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000330018500015
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/8111
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Li, Hui-Quan,Cao, Yan,Li, Xin-Tao,et al. Heterogeneous Catalytic Methoxycarbonylation of 1,6-Hexanediamine by Dimethyl Carbonate to Dimethylhexane-1,6-dicarbamate[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2014,53(2):626-634.
APA Li, Hui-Quan,Cao, Yan,Li, Xin-Tao,Wang, Li-Guo,Li, Feng-Jiao,&Zhu, Gan-Yu.(2014).Heterogeneous Catalytic Methoxycarbonylation of 1,6-Hexanediamine by Dimethyl Carbonate to Dimethylhexane-1,6-dicarbamate.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,53(2),626-634.
MLA Li, Hui-Quan,et al."Heterogeneous Catalytic Methoxycarbonylation of 1,6-Hexanediamine by Dimethyl Carbonate to Dimethylhexane-1,6-dicarbamate".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 53.2(2014):626-634.
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