| Sepiolite supported catalyst multicomponent metal oxide for ammoxidation of propane |
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| 引用本文： | 金胜明,邱冠周,唐谟堂,胡岳华. Sepiolite supported catalyst multicomponent metal oxide for ammoxidation of propane[J]. 中南工业大学学报(英文版), 2004, 11(4): 395-399. DOI: 10.1007/s11771-004-0082-6 |
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| 作者姓名： | 金胜明 邱冠周 唐谟堂 胡岳华 |
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| 作者单位： | School of Resources Processing and Bioengineering，Central South University，Changsha 410083，China，School of Resources Processing and Bioengineering，Central South University，Changsha 410083，China，School of Metallurgical Science and Engineering，Central South University，Changsha 410083，China，School of Resources Processing and Bioengineering，Central South University，Changsha 410083，China |
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| 摘 要： | 1 INTRODUCTIONSepioliteisa porous ,hydratedmagnesiumsilicatewiththeoreticalformulaofMg8(Si1 2 O3 0 )·(OH) 4·(OH2 ) 4·8H2 O .2∶1laminarstructuralunitisformedbyalayerofmagnesiaoctahedralbetween 2layersofcontinuoussilicatetrahedralinversingapicaldirectionevery 6silicatetrahedralunits .H2 Oandexchangeablecationslieinchannelsextendinginthec axisdirection .Thisspecialstructuregivessepiolitealargespecificsurfaceareaandhighcapacityofionexchange .Therefore ,sepiolitehasbeenusedwidelyincat…
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| 关 键 词： | 海泡石 氨氧化 丙烷 丙烯腈 催化剂 |
| 收稿时间： | 2003-12-01 |
| 修稿时间： | 2004-02-10 |
Sepiolite supported catalyst multicomponent metal oxide for ammoxidation of propane |
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| Jin Sheng-ming , Qiu Guan-zhou , Tang Mo-tang and Hu Yue-hua. Sepiolite supported catalyst multicomponent metal oxide for ammoxidation of propane[J]. Journal of Central South University of Technology, 2004, 11(4): 395-399. DOI: 10.1007/s11771-004-0082-6 |
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| Authors: | Jin Sheng-ming Qiu Guan-zhou Tang Mo-tang Hu Yue-hua |
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| Affiliation: | (1) School of Resources Processing and Bioengineering, Central South University, 410083 Changsha, China;(2) School of Metallurgical Science and Engineering, Central South University, 410083 Changsha, China |
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| Abstract: | Natural sepiolite was treated with HCl solution to change its surface and internal structure and the struc ture of sepiolite was cracked to produce SiO2 when the concentration of HCl is more than 2 mol/L. The Mo-Bi-Fe Co-V-Sb-O/sepiolite catalyst was prepared through impregnation - precipitation method and characterized by means of X-ray diffraction, scanning electron microscopy and energy dispersive spectrum techniques. The effects of tem perature, volume fractions of NH3 and O2, and space velocity of feed gas on catalytic activity were evaluated in a fixed bed reactor. The results show that propane conversion of 82% and selectivity to acrylonitrile of 38% can be obtained at 490 ℃, V(C3H8) :V(NH3) : V(O2)=1.00: 1.05: 2.50 and space velocity of 3 000 cm3 · g-1 · h-1. |
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| Keywords: | sepiolite ammoxidation propane acrylonitrile |
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