Recovery Of Uranium Hexafluoride From Feed Plant Vent Gases

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (727 download)

DOWNLOAD NOW!

Download or read book RECOVERY OF URANIUM HEXAFLUORIDE FROM A GAS STREAM BY ABSORPTION IN A FLUIDIZED BED OF URANIUM TETRAFLUORIDE. written by and published by . This book was released on 1958 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique absorption process for recovery of small quaintities of uranium hexafluoride vapors from a highly reactive gas stream is discussed along with the design criteria that were developed as a result of laboratory and pilot plant tests. The chemistry of thc absorption proccss is presentcd with a summary of the data collccted during laboratory and pilot plant testing. A description is also given of the plant scale absorption systom now in operation at the UF6 manufacturing plant of the Union Carbide Nuclear Company at Paducah, Kentucky. The vent gases from the UF6 manufacturing process at Paducah contain appreciable quantities of oxygen and nitrogen, some hydrofluoric acid and elemental fluorine, and small quantities of valuable uranium hexafluoride. To permit recovery of the UF6, these vent gases are passed through a fluidized bed of green salt (uranium tetrafluoride) where essentially all of the UF6 and a portion of the F2 react to from solid uranium fluoride intermediates. When operated at 400SDEF, as much as 0.38 pounds of UF6 or its equivalent of F2 can be absorbed per pound of green salt. The green salt containing the absorbed UF6 and F2 can either be returned to the UF6 manufacturing plant or regenerated with hydrogen. (auth).