Patent ID: 9221748
Filing Date: 2015-12-29
Classification: A01N,C07C

Abstract:
1. A process for converting a first biocidal formulation to a second biocidal formulation, the process comprising providing a first biocidal formulation comprising a first amount of 2,2-dibromo-3-cyanoacetamide and water, contacting together the first biocidal formulation and an effective amount of a nitrile-amide-conversion composition to form a reaction mixture comprising a second biocidal formulation, the second biocidal formulation comprising water and 2,2-dibromomalonamide, the contacting being performed in such a way so as to produce the second biocidal formulation, and wherein the process further comprises a. obtaining a mother liquor from the reaction mixture; b. preparing another nitrile-amide-conversion composition comprising most of the mother liquor; c. contacting the other nitrile-amide-conversion comprising the mother liquor to another amount of 2,2-dibromo-3-cyanoacetamide to form another reaction mixture, the contacting the other nitrile-amide-conversion comprising the mother liquor to another amount of 2,2-dibromo-3-cyanoacetamide being performed in such a way so as to produce additional 2,2-dibromomalonamide.