文献类型：专利

英文题名：Method for preparing composite metal mesoporous oxide utilized in e.g. organic synthesizing reaction, involves dissolving surfactant, stabilizer, first metal source and second metal source, and filtering and drying obtained product

作者：HE X;LIANG X;KE Y;WANG C;SHENG Q

机构：[1]UNIV EAST CHINA SCI&TECHNOLOGY

申请号：CN102327772-B

公开日：2013-04-03

语种：英文

收录：DERWENT

摘要：NOVELTY - A composite metal mesoporous oxide preparing method involves dissolving surfactant, stabilizer, a first metal source and a second metal source, and gradually dropping the dissolved product into de-ionized water at 25-45 degrees C. The obtained sediment is dried and homogenized to obtain single dispersion gel oxide micro balls. The micro balls are aged under a hydrothermal condition. The obtained product is filtered and dried in air to obtain solid powder followed by heating for 1-3 hours at 30-200 degrees C, and continuously roasting the powder for 4-8 hours to obtain the composite metal mesoporous oxide. USE - Method for preparing composite metal mesoporous oxide that is utilized in organic synthesizing reaction e.g. catalytic coupling of carbon-carbon bond, carbon-nitrogen bond and carbon-oxygen bond, catalytic reduction such as hydrogenation and dehalogenation of halogeno benzene of different substituent groups, catalytic oxidation of aliphatic alcohol and aromatic alcohol to form aldehyde and acid, and hydrosilylation reaction e.g. addition reaction of trialkoxysilane and olefin (all claimed). ADVANTAGE - The composite metal mesoporous oxide has high catalytic activity, wide application range, excellent stability, and better capability of circulating for multiple times. DETAILED DESCRIPTION - A composite metal mesoporous oxide preparing method involves dissolving surfactant, stabilizer, a first metal source and a second metal source, and gradually dropping the dissolved product into de-ionized water at 25-45 degrees C. The obtained solution is stirred for 1-30 minutes until the solution is muddy followed by stopping stirring, adding alcohol and maintaining the mixture for 60-240 minutes, and filtrating and separating the obtained sediment. The obtained sediment is dried at room temperature and is homogenized to obtain single dispersion gel oxide micro balls. The gel oxide micro balls are aged under a hydrothermal condition followed by transferring the gel oxide micro balls, the de-ionized water, alcohol and urea to a high-pressure kettle having a tetrafluoroethylene lining, uniformly dispersing, and performing a hydrothermal treatment. The obtained product is filtered and dried in air to obtain solid powder followed by heating for 1-3 hours at 30-200 degrees C, continuously roasting the powder for 2-4 hours at 200 degrees C, increasing the temperature to 300-500 degrees C, and continuously roasting the powder for 4-8 hours to obtain the composite metal mesoporous oxide. DESCRIPTION OF DRAWING(S) - The drawing shows a photograph of composite metal mesoporous oxide.