Patent ID: 8470374
Filing Date: 2013-06-25
Classification: A01N,C02F,C03C

Abstract:
1. A granular antimicrobial agent for water processing comprising 0.5 wt % to 4 wt % of Ag 2 O, 2 wt % to 10 wt % of K 2 O, 35 wt % to 50 wt % of SiO 2 , and 40 wt % to 55 wt % of B 2 O 3 , wherein the solubility of the granular antimicrobial agent at 25° C. is within a range of 0.1 mg/g·L·hour to 1 mg/g·L·hour; wherein the composition does not comprise P wherein the bulk specific gravity of the granular antimicrobial agent is between 0.9 g/mL and 1.1 g/mL; wherein the average weight per particle of the granular antimicrobial agent is between 0.5 g and 2.0 g; and wherein at least one surface of the granular antimicrobial agent has a conical shape, and the maximum diameter at the bottom of the granular antimicrobial agent is 2 mm to 8 mm.