Method for preparing biocidal aqueous compositions

摘要

An aqueous biocidal composition comprising a mixture of hydrochloric acid (HCl), urea, and sodium hypochlorite (NaOCl) at acidic pH, a method for manufacturing the composition and a biocidal technology for treating industrial water.

主权项

1. A method for manufacturing a biocidal and antifouling composition in an aqueous mixture, comprising the steps of
i) providing aqueous solution A containing HCl at a concentration of between 5 wt % and 15 wt %, and urea at a weight ratio of urea/HCl of from 0.7 to 7; ii) providing aqueous solution B comprising NaOCl; and iii) combining said aqueous solutions A and B; wherein said solutions A and B are combined, optionally with an amount of additional water, in such a ratio of volumes so as to provide a pH lower than 6.0.