非晶態(tài)雷尼鎳論文：d-酒石酸修飾raneyni催化樟腦不對(duì)稱加氫合成龍腦-文庫吧資料
2025-07-03 16:22本頁面
【正文】 enantioselectivity on carbonyl pounds subject trys to use RaneyNi/DTA/NaBr as catalyst in hydrogenation of is the main research contents:(1)Find new technical route. By read many abstract, we decide our technical route as this:research the effects of Dtartaric acid concentration,pH of modifying solution,selection of additives,temperature of modification and time of modification on Raney nickel find optimum modification conditions as: Raney Ni 3g, modified in 100ml solution with 1% Dtartaric acid concentration and 2% NaBr concentration,pH =4,which are achieved by adding1M NaOH,then modified 1hour at 100℃.(2)The influence of most important factors on the optical yield and hydrogenation activity varying the reaction temperature and pressure,solvent type,the reaction time and so on were systematically many tests,We find optimum conditions as this:phor 3g,modified Raney Ni 3g,ethanolsolu
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