Title:
【発明の名称】ロータリキルンの改良
Document Type and Number:
Japanese Patent JPH08500057
Kind Code:
A
Abstract:
PCT No. PCT/GB94/00953 Sec. 371 Date Jan. 20, 1995 Sec. 102(e) Date Jan. 20, 1995 PCT Filed May 4, 1994 PCT Pub. No. WO94/26405 PCT Pub. Date Nov. 24, 1994A rotary kiln, particularly for producing uranium dioxide from uranium hexafluoride, has an inlet arrangement and a heated rotatable barrel. Uranium hexafluoride and steam react together in the inlet arrangement to form uranyl fluoride which is fed into the barrel by the aid of a rotating scroll feed device. In the barrel, the uranyl fluoride reacts with a counterflow stream of steam and hydrogen to produce the uranium dioxide. A porous metal or ceramic filter closely surrounds the scroll feed device to remove particles from kiln-produced gases. The filter is maintained in a clean condition by the scraping action of a number of helical blades forming part of the scroll feed device. The uranium dioxide powder produced by the kiln may be processed to form nuclear fuel pellets.
Inventors:
CARTER ROBERT (GB)
SEMERAZ JOHN TERRY (GB)
SEMERAZ JOHN TERRY (GB)
Application Number:
JP52510894A
Publication Date:
January 09, 1996
Filing Date:
May 04, 1994
Export Citation:
Assignee:
BRITISH NUCLEAR FUELS PLC (GB)
International Classes:
B01J12/00; B01J12/02; B01J19/28; C01G23/00; C01G43/025; C22B60/02; F27B7/00; F27D25/00; G21C3/62; (IPC1-7): B01J12/00; C01G43/025
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)