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工程管理专业毕业论文格式说明

1、论文第一章必须是“文献综述”，内容可对收集的针对本人论文选题的专业理论与实践资料，进行整理、分析、总结，综述国内外的研究状况和本论文选题的主要研究内容。

2、中间的章节标题和内容依论文内容自行确定 3、论文最后一章必须是“结论与建议”

4、毕业设计的封面、中英文摘要、目录、各章节标题、参考文献、致谢、正文的字体、字号、排版等格式要求按照2009年4月教务处发布的最新毕业设计（论文）格式规范（范本在本文后面）和学校教字（2009）3号《武汉工程大学本科毕业设计（论文）撰写格式规定》。

摘 要（黑体，四号，居中）

碳酸二甲酯(DMC)是一种对环境友好的绿色化学品，其洁净合成工艺的研究及开发，已引起国内外学者的广泛关注。以CuCl催化剂甲醇液相氧化羰化法合成DMC已实现工业化。由于反应生成了副产物HCl，造成Cl-的流失，不仅造成催化剂失活，同时对反应设备腐蚀严重，污染环境。

论文中制备了CuCl和Schiff碱助剂络合均相催化剂，并采用IR对其进行了表征。考察了不同Schiff碱助剂（助剂：CuCl=1：1）对CuCl催化甲醇液相氧化羰化合成DMC催化性能的影响。结果表明：N-甲基咪唑与CuCl络合制备的催化剂催化活性最高。在120℃，反应压力2.4MPa，反应时间4h条件下，甲醇的转化率达到5.8%，DMC的选择性达到99.9%。对于双配体络合CuCl催化体系，能进一步提高催化活性。在120℃，反应压力2.4MPa，反应时间4h，聚乙烯吡咯烷酮：N-甲基咪唑：CuCl=2：1：1 (摩尔比)，甲醇的转化率达到6.6%。结果同时表明，催化体系的Cl-的流失量降低，催化剂的寿命得到了提高。

关键词：氧化羰化甲醇；碳酸二甲酯；铜络合物催化剂

Abstract（黑体，四号，居中）

Diethyl carbonate (DMC) is an environmentally benign intermediation. It was paid widely attention that the research and development of a green process of synthesis of DMC. Although the process of producing DMC by oxidative carbonization of methanol in the presence of CuCl catalyst system has been industrial, some drawbacks, for instance the production of the by-production HCl , in which not only caused to a leaking of Cl- subsequence by the deactivate of the catalyst, but also a corrosion to the reactor, still need to be overcome.

In this work, a complex catalyst was prepared from CuCl and Schiff base additives and characterized by IR. The effects of different Schiff base additives were investigated. The results showed that high activity was exhibited in the presence of complex catalyst synthesized by N-methylimidazole and CuCl，the methanol conversion was 5. 8%, DMC selectivity reached to 99.9 % at 120 ℃, pressure 2.4 MPa, the reaction time 4 h. At the same condition, catalytic activity was further improved by two-ligands complex CuCl system, methanol conversion is 6.56% (PVP: N-methylimidazole: CuCl = 2:1:1).The result also showed that life of the CuCl/Schiff base additive catalysts was prolonged.

Keywords: oxidative carbonization of methanol；DMC；Cuprous chloride complex catalys（Times new Roman字体，小四）