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. 16, 1980
Filed:
Aug. 20, 1979
Louis C Hirdler, Lake Charles, LA (US);
Raymond J Smialek, Lake Charles, LA (US);
Olin Corporation, New Haven, CT (US);
Abstract
A process is provided for solvent recovery from a hot gaseous mixture comprised of ammonia, carbon dioxide, cyanuric acid particles, and solvent vapors. The process comprises scrubbing the hot gaseous mixture with a liquid solvent to remove the cyanuric acid particles and to form a scrubbed gaseous mixture. The scrubbed gaseous mixture is cooled to form condensed liquid solvent and a cooled gaseous mixture containing traces of the solvent. The temperature of the cooled gaseous mixture is kept above that at which ammonium carbamate is formed by the reaction of ammonia with carbon dioxide. Condensed liquid solvent is separated from the cooled gaseous mixture and the cooled gaseous mixture is contacted with additional liquid solvent to form a substantially solvent-free gaseous mixture.