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- Raney nickel film 热催化活性镍合金片
- Raney-type alloy for the preparation of Raney Nickel catalyst. 要求是雷尼镍催化剂的前躯体,也就是雷尼镍的半成品。
- Raney nickel catalyst for hydrogenation of dodecyl dinitrile to dodecyl diamine was chosen on the basis of experiment. 摘要通过试验,优选了十二碳二腈加氢制十二碳二胺用骨架镍催化剂。
- The structure of nickel film is analyzed by using SEM and X-ray diffractometer. 利用电镜和X衍射对镍膜的结构进行了分析。
- What is more, the way to preparation and regeneration of Raney nickel catalyst is studied tentatively. 同时,本文也对雷尼镍催化剂的制备和再生活化等工艺条件进行了探索性研究。
- The hydrogenation of terpineol to dihydroterpineol catalyzed by Raney Nickel modified by potassium borohydride was studied. 研究了以硼氢化钾修饰的雷尼镍催化剂催化松油醇加氢制备二氢松油醇的反应。
- A new camphol sandaliol was synthetized by selective alkylation of isocamphol and phenol with acidic catalyst, and following hydrogenated in the presence of Raney nickel. 摘要本文用异龙脑与苯酚在酸性催化剂作用下进行选择性烷基化反应,再经催化氢化还原得到龙脑檀香产品。
- The experiments were carried out with the Raney nickel catalysts and molecular sieves, using the ceramic membrane to evidence the present of critical point. 以骨架镍催化剂和分子筛微粒为实验对象,用陶瓷微滤膜通过实验对此进行了验证。
- Preparation of methyl isobutyl carbinol(MIBC)was studied by catalytic hydrogenation of methyl isobutyl ketone(MIBK)in liquid phase on Raney nickel catalyst. 研究了以骨架镍催化剂液相催化加氢制备甲基异丁基甲醇的工艺。
- Results show that the nanocrystalline nickel film obtained has fine and leveled surface and satisfactory properties mentioned above which are greatly improved ... 结果表明,该纳米镍镀层表面致密、平整,且结合强度、显微硬度及耐磨性能优良,与粗晶镍镀层相比有较大的提高。
- SEM analysis shows that, by this technique, the surface condition of the nickel film on the surface of porcelain grain is good and the thickness of the film is uniform. 扫描电镜分析结果表明通过采用恰当的工艺,陶瓷颗粒表面能够获得表面形貌较好且镀层厚度均匀的镍沉积层。
- Abstract Chiral modified Raney nickel catalysts are one kind of the most promising catalysts for the asymmetric hydrogenation with high optical activity and good enantioselectivity. 摘 要 手性修饰阮内镍催化剂在多相不对称氢化中表现出了优异的催化性能,是目前合成手性化合物最具有工业化前景的催化体系之一。
- Qualified nickelous, sulfate, nickelous nitrate and nikel monoxide were prepared with waste raney nickel catalyst as raw material. 以废雷尼镍催化剂为原料,制备出合格的硫酸镍、硝酸镍和氧化镍。
- High quality nickel films have been successfully plated on cenosphere particles by dc magnetron sputtering at mom temperature. 摘要本文论述了在空心微珠表面磁控溅射镀金属薄膜的方法。
- High quality nickel films have been successfully plated on cenosphere particles by dc magnetron sputtering at room temperature. 本文论述了在空心微珠表面磁控溅射镀金属薄膜的方法。
- That was infinitely better than his last film. 这比他上一部电影不知胜过多少倍。
- Keywords Raney nickel;sebaconitrile;decyldiamine;hydrogenation; 骨架镍;癸二腈;癸二胺;加氢;
- Keywords Raney nickel catalyst;fining grain;stability; 雷尼镍催化剂;晶粒细化;稳定性;
- She has a book full of cuttings about her film. 她有一本书贴满了关于她的一些影片的剪报。
- Keywords diquat;2;2'-bipyridyls;Raney nickel catalyst; 敌草快;2;2'-联吡啶;雷尼镍催化剂;