Preparation of precursors for yttrium-containing ceramic superconductors

摘要

This is a process for making precursors for ceramic superconductor. It utilizes fluidized bed chlorination of a rare earth ore (e.g. xenotime or monazite) a separation of yttrium chloride by differential condensation at 725 DEG -1200 DEG C. and reaction with an alkali metal alkoxide to produce yttrium alkoxide for mixing with alkoxide of other non-oxygen constituents of the superconductor for producing an alkoxide composite for processing into the superconductor.