The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 1987
Filed:
Feb. 14, 1984
Ronald O Noe, Columbia, SC (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A process and apparatus for separating uranium-containing particulate matter from the off-gas stream of a calciner, without condensation of ammonium fluoride from the gas stream along with the particulate matter, wherein the off-gas is passed through a filter while maintained at a temperature in excess of 340.degree. C. Preferably, the off-gas stream is forced through the filter by an aspirator, located downstream of the filter, and the filter comprises a plurality of filter units in side-by-side relationship, each of said filter units being purged by a nitrogen gas stream while the off-gas stream continues to flow through the remainder of the filter units for a continuous filtering operation.