FLUIDIZED BED REACTOR HAVING A CENTRALLY POSITIONED INTERNAL HEAT SOURCE

摘要

Fluidized bed reactors having centrally positioned heating means, as well as methods for their use, are provided. The subject reactors (10) comprise a centrally positioned heating means (e.g. a susceptor rod (12)) that, during operation, is at least partially immersed in a fluidized bed of particles (16). Preferably the susceptor rod (12) is heated by externally positioned radio-frequency coils in operational relationship with an RF source (18). The subject reactors are further characterized in that, during use, a temperature gradient is produced within the reactor. The subject reactors find use in the production of electronic grade silicon and in the silica coating of titania particles.