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:
Oct. 09, 2012
Filed:
Mar. 06, 2009
Masayoshi Konishi, Narashino, JP;
Masayoshi Konishi, Narashino, JP;
Sumitomo Osaka Cement Co., Ltd., Chiyoda-ku, Tokyo, JP;
Abstract
A method for recovering thallium in a cement production facility according to the present invention includes: a collecting process of collecting dust from combustion gas at a passage of the combustion gas, which is downstream of a gas outlet of a suspension preheater or a gas outlet of a demineralizer of a cement kiln of the cement production facility; a water-cleaning process of producing slurry or a water solution by cleaning the collected dust using water; and a filtering process of separating the slurry or water solution into a solid and a liquid and recovering thallium, wherein thallium is recovered from the combustion gas exhausted from the cement production facility.