李忠
一直从事有机催化方面的研究和教学工作,特别是在一氧化碳化学、甲醇化学、羰基合成方面做了大量的研究工作。
个性化签名
- 姓名:李忠
- 目前身份:
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学术头衔:
博士生导师
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学科领域:
有机化学
- 研究兴趣:一直从事有机催化方面的研究和教学工作,特别是在一氧化碳化学、甲醇化学、羰基合成方面做了大量的研究工作。
李忠,教授,硕士生导师。1965 年 7 月生,山西朔州人。太原理工大学煤化工研究所副所长,1985 年高分子化工专业大学毕业,1988 年有机化工专业硕士研究生毕业,2002 年晋升教授,一直从事有机催化方面的研究和教学工作,特别是在一氧化碳化学、甲醇化学、羰基合成方面做了大量的研究工作。先后负责和参加了两项国家自然科学基金项目,两项省青年科学基金项目,一项厦门大学固体表面物理国家重点实验室开放基金项目和多项合作项目的研究工作,在国内外公开发表学术研究论文 30 余篇,获省理论成果三等奖一项。
1994 年起,先后在山西省归国留学基金,太原理工大学科技基金和太原化学工业集团公司的资助下,研究了液相法甲醇氧化羰基化合成碳酸二甲酯及产物分离方法,催化剂固体离子交换制备技术气相催化反应,发表学术论文10余篇。1997-1998 年在英国
EXETER大学访问留学期间从事固体离子交换催化剂制备和常压气相甲醇氧化羰基化合成碳酸二甲酯研究。 2003 年主持年产 500 吨碳酸二甲酯中试项目研究。
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成果数
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李忠, Zhong Li a, *, Kechang Xie a, Robert C.T. Slade b
Applied Catalysis A: General 209 (2001) 107-115,-0001,():
-1年11月30日
The interaction between CuCl and HY (Si/Al D 20) zeolite under inert nitrogen gas atmosphere has been studied by TG/TGA, XRD, 27Al MAS NMR, and 29Si MAS NMR spectra. CuCl is easy to sublimate and disperse on the surface of the zeolite. But if CuCl was adsorbed on the cage of the zeolite, it was unlikely to be desorbed from the zeolite at over 800℃. The ion-exchange of CuI in solid CuCl with HC in HY zeolite occurred at over 300℃ and the maximum ion-exchange rate was reached at 340℃ under a heating rate of 10℃/min, with the consequent release of HCl gas. And it was found that CuCl promotes the dealumination of framework aluminium of the HY zeolite and probably reacted with the extra framework aluminium to form (AlO)Cl. During the heating treatment, the unique structure of the Y zeolite was kept and CuCl crystalline phase was unlikely to disappear because the powder XRD pattern of CuCl crystalline phase was still observed when the CuCl/HY sample was treated at 350℃ for 60 h and 650℃ for 5 h. Over 100% ion-exchanged degree of the CuI with HC in HY zeolite was obtained at high treatment temperature (650℃ or over) due to the reaction between defect -Si-OH and CuCl to form -Si-OCu.
Solid state ion-exchange, CuCl, HY zeolite, TG/, TGA, XRD
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李忠, Zhong Li a, *, Kechang Xie a, Robert C.T. Slade b
Applied Catalysis A: General 205 (2001) 85-92,-0001,():
-1年11月30日
In this study, MCM-41 material was synthesised and the mesoporous structure was confirmed by powder XRD patterns. Organic group 3-chloropropyl was anchored on the surface of MCM-41(1) by reaction of 3-chloropropyltrimethoxysilane with terminal silanol groups on the surface of MCM-41(1) material. The modified material MCM-41(1)-Cl still kept its mesoporous structure even after the material was calcined again at 550℃ for 4 h and the organic groups were removed. Prepared by solid state ion-exchange under flowing nitrogen, CuCl/MCM-41 catalyst had 100% selectivity of dimethyl carbonate based on methanol and 5–10 wt.% conversion of methanol at 130℃. With the decreasing mole ratio of Si/Al of MCM-41 material, e.g. increasing the aluminium content in the material, the catalytic activity increased because more CuI was loaded on the material. When the reaction temperature increased, the dimethyl carbonate selectivity decreased and three by-products: dimethyl ether, methyl formate, dimethoxymethane were formed at high temperature. Finally increasing the oxygen partial pressure in the feed gases resulted in more dimethyl carbonate formed.
Oxidative carbonylation, Solid-state ion-exchange, CuCl,, MCM-41, Dimethyl carbonate
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李忠, Jun Zhong Zhang*, Zhong Li, Hui Wang, Chang You Wang
Journal of Molecular Catalysis A: Chemical 112 (1996) 9-14,-0001,():
-1年11月30日
The purpose of this investigation is to synthesize formic acid by hydrogenation of CO,. The catalysts or catalyst precursors employed in these studies under 6 MPa(CO2/H2) and at 60℃, were ruthenium chloride or ruthenium complexes. The turnover number obtained for formic acid production was ca. 200 by using ethanol/water (5:1) for a 5h reaction period. In the reaction mechanism the CO, is activated by the ruthenium complex with formation of metal-formate intermediate HC02RuH(CO)(PPh3)3, which releases formic acid by reductive elimination of the hydrido-formate ligands.
Carbon dioxide hydrogenation, Formic acid, Ruthenium chloride, Ruthenium complexes
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李忠, 杨利, 黄伟, 朱素渝, 谢克昌
天然气化工,2004,29(1):60~64,-0001,():
-1年11月30日
论述了甲醇氧化糍基化合成碳酸二甲酯催化剂的研究和开发现状,特别是对Cu、Pd两种催化剂及Cu(Ⅰ)、Cu(Ⅱ)在不同载体和促进剂作用下的催化机理与催化性能进行了综合分析。
碳酸二甲酯, 甲醇, 氧化糍基化, 催化剂
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李忠, 周丽, 谢克昌
工业催化,2003,11(4):44~48,-0001,():
-1年11月30日
由CO2合成碳酸二甲酯(DMC)是一条对化学工业和环境保护都具有吸引力的工业路线。综述了以CO2为原料的两种合成方法(直接法和间接法)的最新研究。着重论述直接法合成中的催化剂以及反应条件对DMC收率的影响。CO2直接合成DMC有望成为一条重要的工业路线。
碳酸二甲酯, 甲醇, CO2, 合成
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