Title:
【発明の名称】流動床反応器及び方法
Document Type and Number:
Japanese Patent JP2711305
Kind Code:
B2
Abstract:
Undesirable conversion of a silicon source, such as silane, in the freeboard above a fluidized bed of silicon particles in a fluidized bed reactor, can be reduced by cooling the gas within the freeboard. Preferably, the reduction in temperature is achieved by introducing into the freeboard a stream of relatively cool quench gas such as hydrogen, which also reduces the concentration of silane in the freeboard. As a result of these two factors, the invention improves the service factor of the fluidized bed apparatus and reduces the amount of silane conversion to undesired by-products.
Inventors:
Robert Hall Allen
Application Number:
JP20483988A
Publication Date:
February 10, 1998
Filing Date:
August 19, 1988
Export Citation:
Assignee:
Albemarle Corporation
International Classes:
B01J8/24; B01J8/18; C01B33/02; C01B33/027; C01B33/029; (IPC1-7): C01B33/02; B01J8/24
Attorney, Agent or Firm:
Heiyoshi Odashima