SBIR Phase I: Electrochemical Synthesis of Propylene Oxide Under Reductive Conditions

SBIR 第一阶段：还原条件下电化学合成环氧丙烷

• 批准号: 9660636
• 负责人: James White
• 金额: $ 7.5万
• 依托单位: Eltron Research, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-01-01 至 1997-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9660636&HistoricalAwards=false
• 关键词: SBIR; Phase; Electrochemical; Synthesis; Propylene

This proposal addresses the one-step direct electrochemical synthesis of propylene oxide from propylene/oxygen mixtures and a bifunctional electrocatalyst for simultaneously generating hydrogen peroxide and epoxidizing olefins. The ability to in situ electrochemically generate hydrogen peroxide allows for the precise control of its local concentration and the resultant enhancement of selectivity to propylene oxide. The proposed approach will also allow for direct removal of product through a membrane semipermeable to propylene oxide. Hydrogen peroxide electrogeneration will be catalyzed by either gold or a supported metallomacrocycle (Ni-phthalocyanine or Comeso-tetraphenylporphyrin). Propylene epoxidation will be catalyzed by Mn-meso-tetraphenylporphyrin or titanium silcalite. Successful completion of the program will result in a selective, high yield process for the epoxidation of olefins. The technology developed in this program should provide a significantly lower cost route to olefin epoxides using in situ electrochemically generated hydrogen peroxide and should be of great interest to manufacturers of these types of materials.

该提议提出了由丙烯/氧气混合物和用于同时产生过氧化氢和环氧化烯烃的双功能电催化剂一步直接电化学合成环氧丙烷。原位电化学产生过氧化氢的能力允许精确控制其局部浓度并由此提高对环氧丙烷的选择性。所提出的方法还将允许通过对环氧丙烷半渗透的膜直接去除产物。过氧化氢的电生成将由金或负载的金属大环（Ni-酞菁或Comeso-四苯基卟啉）催化。Mn-meso-四苯基卟啉和钛硅分子筛催化丙烯环氧化反应。该计划的成功完成将导致烯烃环氧化的选择性，高产率工艺。 该计划中开发的技术应提供一种使用原位电化学生成的过氧化氢生产烯烃环氧化物的成本显著降低的途径，并应引起这些类型材料制造商的极大兴趣。