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本文研究了二氧化硅负载的聚铝氨烷-铂络合物在α-萘酚选择性氢化反应中的催化性能。发现此催化剂在30—50℃和0.1MPa的温和条件下,对α-萘酚的氢化反应具有较高的催化活性和选择性。当α-萘酚的转化率达100%时,目的产物5,6,7,8-四氢-α-萘酚的选择性高于80%。考察了络合物中N/Pt摩尔比、反应温度、时间、溶液的pH值和溶剂等反应条件对催化活性及选择性的影响,此催化剂重复使用三次后,催化活性和选择性未见明显下降,具有良好的稳定性。
In this paper, the catalytic performance of silica-supported polyaluminum-platinum complexes in the selective hydrogenation of α-naphthol was studied. The catalyst was found to have high catalytic activity and selectivity for the hydrogenation of α-naphthol under mild conditions of 30-50 ° C and 0.1 MPa. When the conversion of α-naphthol reaches 100%, the selectivity of the target product 5,6,7,8-tetrahydro-α-naphthol is higher than 80%. The effects of reaction conditions such as N / Pt molar ratio, reaction temperature, reaction time, pH, and solvent on the catalytic activity and selectivity of the complex were investigated. The catalytic activity and selectivity of the catalyst were not obvious after repeated use for three times Decline, with good stability.