甲醇电催化羰基化合成碳酸二甲酯工艺及电催化机理研究

项目名称： 甲醇电催化羰基化合成碳酸二甲酯工艺及电催化机理研究

项目编号： No.21266018

项目类型： 地区科学基金项目

立项/批准年度： 2013

项目学科： 化学工业

项目作者： 高艳芳

作者单位： 内蒙古工业大学

项目金额： 52万元

中文摘要： 甲醇是煤直接或间接液化的重要产品，以其为原料的化学品合成是以煤为原料制取化学品的主要途径。碳酸二甲酯是高效、低毒、泛用的有机合成中间体，有良好的工业应用前景。近期开发的非光气法甲醇制取碳酸二甲酯工艺中存在毒性大、操作安全性差等问题，而电化学有机合成方法具备环境友好，操作安全等优点。为此，国内外研究者开展了甲醇电催化合成碳酸二甲酯的相关研究，但存在电催化剂价格高、反应选择性差、产物产率低等问题，未能实现工业化。本课题拟开发廉价、高效的电催化剂，提高常温常压下甲醇电催化羰基化合成碳酸二甲酯反应选择性，探索电催化反应机理，提出电催化合成过程工艺，优化工艺参数，为实现工业化生产提供理论支持。本课题立足于内蒙古自治区煤、电、稀土等资源优势，开展以甲醇为原料的电化学催化羰基化合成碳酸二甲酯工艺研究，为甲醇的非燃料利用提供新的途径。该工艺的开发应用对延伸煤制油产业链，获取高附加值的化工产品具有重要意义。

中文关键词： 甲醇；碳酸二甲酯；有机电合成；优化；催化

英文摘要： Methanol is important direct or indirect product of coal devolatilization. It is an available road to obtain Chemicals or synthesis product from coal used methanol as raw material. Dimethyl carbonate(DMC) is very important as a synthetic intermediate and as a raw material in the current chemical industry. DMC is widely used as a safe carbonylation reagent to substitute for the strong toxic reagents dimethyl sulfate and phosgene for polymer synthesis such as polycarbonate and isocyanate because of it is almost non-toxicity. DMC is also a good green solvents and gasoline additives. DMC was produced by the phosgene method in the early, but phosgene was highly toxic. Therefore, phosgene-free methods have been studied and developed. In recent years, most of DMC was manufactured by the Eni Chem method and the Ube method from CH3OH and CO. These processes have a great advantage of not using phosgene, but also have some disadvantages, including reaction conditions harshly and having a lot of by-products for the Eni Chem method, and multisteps operation and use of corrosive nitrogen monoxide for the Ube method. Therefore, study and development of new method for DMC formation is very important.Advantages of the electrochemical carbonylation method is realized as environmental benign and easy to operation. For those reason

英文关键词： methanol；dimethyl carbonate；organic electrosynthesis；optimization；catalysis