公开(公告)号：US3781392A

公开(公告)日：1973-12-25

申请号：US3781392D

申请日：1971-10-07

申请人： ATOMIC ENERGY COMMISSION

发明人： ANDERSON L ,  STEPHENSON M

IPC分类号： B01J2/00 ,  B01J2/20 ,  B01J20/00 ,  C01B7/24 ,  C01B33/10 ,  C01F7/54 ,  C01G33/00 ,  B01J1/22 ,  C01F7/50 ,  C04B35/64

CPC分类号： C01B9/08 ,  B01J2/00 ,  B01J2/20 ,  B01J20/00 ,  C01B33/103 ,  C01D3/02 ,  C01D15/04 ,  C01F7/54 ,  C01G33/00 ,  C01P2006/12 ,  C01P2006/60

摘要： POROUS PELLETS CHARACTERIZED BY A MODERATELY REACTIVE CRUST AND A SOFTER CORE OF HIGHER REACTIVITY ARE PRODUCED BY FORMING AGGLOMERATES CONTAINING A METAL FLUORIDE POWDER AND A SELECTED AMOUNT OF WATER. THE METAL FLUORIDE IS SELECTED TO BE SINTERABLE AND ESSENTIALLY NON-REACTIVE WITH GASEOUS FLUORINATING AGENTS. THE AGGLOMERATES ARE CONTACTED WITH A GASEOUS FLUORINATING AGENT UNDER CONTROLLED CONDITIONS WHEREBY THE HEAT GENERATED BY LOCALIZED REACTION OF THE AGENT AND WATER IS LIMITED TO VALUES EFFECTING BONDING BY LOCALIZED SINTERING.