Heterogeneous Catalytic Methoxycarbonylation of 1,6-Hexanediamine by Dimethyl Carbonate to Dimethylhexane-1,6-dicarbamate | |
Li, Hui-Quan; Cao, Yan; Li, Xin-Tao; Wang, Li-Guo; Li, Feng-Jiao; Zhu, Gan-Yu | |
刊名 | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2014-01-15 | |
卷号 | 53期号:2页码:626-634 |
关键词 | aliphatic-amines al-sba-15 step |
ISSN号 | 0888-5885 |
其他题名 | Ind. Eng. Chem. Res. |
中文摘要 | 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. |
英文摘要 | 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. |
WOS标题词 | Science & Technology ; Technology |
类目[WOS] | Engineering, Chemical |
研究领域[WOS] | Engineering |
关键词[WOS] | ALIPHATIC-AMINES ; AL-SBA-15 ; STEP |
收录类别 | SCI |
原文出处 | |
语种 | 英语 |
WOS记录号 | WOS:000330018500015 |
公开日期 | 2014-05-06 |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.ipe.ac.cn/handle/122111/8111] ![]() |
专题 | 过程工程研究所_研究所(批量导入) |
作者单位 | Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China |
推荐引用方式 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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