Method of preparing nuclear fuels based on mixed carbides

摘要

1,144,068. Mixed carbides. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM). 7 June, 1966 [16 June, 1965], No. 25402/66. Heading C1A. [Also in Division G6] A process for the preparation of mixed carbides of the actinid's and metals of the Groups IV B and V B (Periodic Table in "Chemical Rubber Handbook") by heating a mixture of a fluoride of one or more actinides, a complex fluoride of a Group 1A metal and a Group IV B and/or V B metal, aluminium and carbon, and separating the resultant mixed carbide from the cryolites that form. For instance, a mixed carbide of the U-Zr-C type is prepared by heating a homogeneous mixture of UF 4 , ZrF 6 K 2 or ZrF 6 Na 2 , graphite and aluminium in an inert atmosphere for some hours at 1400‹ C. and then in vacuo at 1700‹ C. so that the cryolite, aluminium fluoride and excess aluminium can be separated by sublimation from the resultant mixed carbide.