-
1.发明授权
公开(公告)号：US4364870A
公开(公告)日：1982-12-21
申请号：US137440
申请日：1980-05-05
CPC分类号： B01J19/121 , C07F5/003
摘要： The invention relates to an improved method for synthesizing uranium hexamethoxide and new mixed methoxy uranium (VI) fluorides from uranium hexafluorides. Irradiation of the products of the invention in the vapor phase, with a pulsed CO.sub.2 gas laser leads to enrichment in the U-235 content of the isotopic mixture containing U-235 and U-238, the degree of enrichment depending upon the laser frequency employed.
摘要翻译： 本发明涉及六氟化铀合成六甲基铀和新的混合甲氧铀（Ⅵ）的改进方法。 在气相中用脉冲CO 2气体激光照射本发明的产物导致含有U-235和U-238的同位素混合物的U-235含量的富集，其浓度取决于所用的激光频率 。
-
公开(公告)号：US4840931A
公开(公告)日：1989-06-20
申请号：US103866
申请日：1987-10-02
申请人： Steven S. Miller
发明人： Steven S. Miller
CPC分类号： B01J31/0255 , B01J31/02 , B01J31/26 , C07C1/0445 , B01J2231/641 , C07C2523/20 , C07C2523/22 , C07C2523/28 , C07C2523/745 , C07C2523/75 , C07C2523/755
摘要： A method of inducing surface ensembles on a transition metal catalyst used in the conversion of a reactant gas or gas mixture, such as carbon monoxide and hydrogen into hydrocarbons (the Fischer-Tropsch reaction) is disclosed which comprises adding a Lewis base to the syngas (CO+H.sub.2) mixture before reaction takes place. The formation of surface ensembles in this manner restricts the number and types of reaction pathways which will be utilized, thus greatly narrowing the product distribution and maximizing the efficiency of the Fischer-Tropsch reaction. Similarly, amines may also be produced by the conversion of reactant gas or gases, such as nitrogen, hydrogen, or hydrocarbon constituents.
摘要翻译： 公开了一种在用于将反应气体或气体混合物如一氧化碳和氢气转化成烃（过渡金属反应）的过渡金属催化剂上引入表面集合体的方法，该方法包括向合成气中加入路易斯碱 CO + H2）混合物。 以这种方式形成表面集合限制了将被利用的反应路径的数量和类型，从而大大缩小了产物分布并最大限度地提高了费 - 托反应的效率。 类似地，胺也可以通过反应气体或气体如氮气，氢气或烃组分的转化而产生。
-
搜索结果
2 条记录 (耗时 0.02 秒)