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:
Sep. 13, 2016
Filed:
Apr. 16, 2014
Applicant:
Tetronics (International) Limited, Swindon, GB;
Inventors:
Assignee:
Tetronics (International) Limited, Swindon, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 11/02 (2006.01); B01D 46/00 (2006.01); C22B 7/02 (2006.01); B01D 53/64 (2006.01); C22B 11/00 (2006.01);
U.S. Cl.
CPC ...
C22B 11/00 (2013.01); B01D 46/0036 (2013.01); B01D 53/64 (2013.01); C22B 7/02 (2013.01); C22B 11/021 (2013.01); C22B 11/023 (2013.01); C22B 11/025 (2013.01); C22B 11/026 (2013.01); Y02P 10/214 (2015.11);
Abstract
A process for treating an off-gas from the thermal processing of a precious-metal-containing feedstock, the process comprising cooling the off-gas to a temperature of from 300 to 500° C.; passing the cooled off-gas through a first particulate filter to recover particulate material; and dosing the off-gas from the first particulate filter with a sorbent material and passing the dosed off-gas through a second particulate filter; wherein at least a portion of the particulate material recovered from the first particulate filter is recycled into the thermal processing of the precious-metal-containing feedstock.