-
1.发明授权Urania sol forming method in the presence of formic acid and a palladiumon-thoria catalyst 失效在甲酸和钯 - 钍氧化物催化剂存在下形成Urania溶胶
公开(公告)号：US3361676A
公开(公告)日：1968-01-02
申请号：US61642767
申请日：1967-02-10
发明人： MCBRIDE JOHN P , PATTISON WILLIAM L
IPC分类号： C01G43/025
CPC分类号： C01G43/025 , C01P2002/60 , C01P2006/10 , C01P2006/12 , C01P2006/80 , Y10S376/901
-
公开(公告)号：US3629133A
公开(公告)日：1971-12-21
申请号：US3629133D
申请日：1969-04-08
CPC分类号： C22B60/0265 , B01J13/0017 , B01J13/0047 , C01G43/00 , C22B60/026
摘要： THE PRESENT INVENTION RELATES TO A METHOD FOR FORMING A STABLE, PREDOMINANTLY CRYSTALLINE SOL FROM AN ACID-DEFICIENT SOLUTION OF A HYDROUS METAL OXIDE IN WHICH THE METAL IS IN THE +4 OXIDATION STATE WHICH COMPRISES HEATING SAID SOLUTION TO A CRYSTALLIZING TEMPERATURE TO CAUSE AN INCREASE IN CONDUCTIVITY OF SAID SOLUTION, REMOVING ANION AT THE CRYSTALLIZING TEMPERATURE TO A CONDITION OF FURTHER ACID DIFICIENCY AT A RATE WHICH APPROXIMATES THE RATE OF RELEASE OF FREE ACID TO THE AQUEOUS PHASE OF THE RESULTANT SOL, AND THEN ADJUSTING THE ANION-TO-METAL RATIO OF THE SOL TO A DESIRED ANION-TO-METAL RATIO.
-
3.发明授权Method for preparing uranium-containing aquasols employing a platinum oxide catalyst 失效制备使用氧化铂催化剂的含铀水溶液的方法
公开(公告)号：US3575875A
公开(公告)日：1971-04-20
申请号：US3575875D
申请日：1969-05-01
发明人： PATTISON WILLIAM L , MCBRIDE JOHN P
CPC分类号： B01J13/0004 , B01J13/0047 , G21C3/623 , Y02E30/38
摘要： A PLATINUM OXIDE CATALYST, WHICH HAS THE UNIQUE PROPERTY OF BECOMING HIGHLY FLOCCULATED IN THE REDUCED STATE, IS EMPLOYED IN AN IMPROVED METHOD FOR PREPARING STABLE URANIUM-CONTAINING SQUASOLS FROM A URANIUM (V)-CONTAINING FEED SOLUTION WHICH IS CATALYTICALLY REDUCED BY HYDROGEN TO A URANIUM (V)-CONTAINING SOLUTION IN A FLOW-THROUGH REDUCTOR VESSEL. THE REDUCED PLATINUM OXIDE CATALYST IS READILY RETAINED IN THE REDUCTOR VESSEL ON A PORPUS FILETER AND THE URANIUM (IV)-CONTAINING SOLUTION IS THEN PROCESSED INTO A STABLE URANIUM-CONTAINING AQUASOL AND CALCINED URANIUM DIOXIDE MICROSPHERES BY KNOWN SOL-GEL PROCESSES.
-
-
搜索结果
3 条记录 (耗时 0.011 秒)