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:
Jan. 29, 1980
Filed:
Dec. 20, 1978
Jay P Davis, Greensboro, NC (US);
Henry C Grace, Baton Rouge, LA (US);
James B Nabors, Baton Rouge, LA (US);
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
A method is provided for separating tris(alkylamino)-s-triazine by-product from chloro-bis(alkylamino)-s-triazines by extracting tris(alkylamino)-s-triazine from an organic solution containing a mixture of tris(alkylamino)-s-triazine and chlorobis(alkylamino)-s-triazine with an aqueous acid solution in the pH-range of 5.4-0.5 and according to a further embodiment of the present invention, treating an alkaline aqueous effluent containing a mixture of chloro-bis(alkylamino)-s-triazine and tris(alkylamino)-s-triazine with an agent capable of reducing the pH value below 5.4 and extracting the chloro-bis(alkylamino)-s-triazine with a water immiscible solvent, the tris(alkylamino)-s-triazine remaining in the aqueous phase.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile