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:
Aug. 28, 1990
Filed:
May. 09, 1989
Ebara Corporation, Tokyo, JP;
Abstract
A solid product which comprises ammonium sulfate and ammonium nitrate and which contains a sulfamic acid compound is produced when an effluent gas having ammonia added thereto is irradiated with a radiation to thereby desulfurize and denitrate the effluent gas comprising SO.sub.x, NO.sub.x and CO, but the CO gas content being less than ten times the concentration of SO.sub.x. It is possible to remove the noxious sulfamic acid compound from the above-described product while preventing decomposition of the ammonium nitrate in the product which is useful as a fertilizer ingredient by heating the product at a temperature of from 130.degree. C. to 250.degree. C., particularly from 180.degree. C. to 250.degree. C.