Patent ID: 8133932
Filing Date: 2012-03-13
Classification: B01J,C09D

Abstract:
1. Process for producing silver metal particle sols having a metal particle content of ≧1 g/l, comprising the steps of a) reacting a silver metal salt solution having a silver metal salt concentration of ≧0.1 to ≦0.5 mol/l with a solution containing hydroxide ions at a concentration of ≧0.1 to ≦0.5 mol/l, thereby forming silver metal oxides or hydrates thereof, silver metal hydroxides or hydrates thereof, mixed silver metal oxide hydroxides or hydrates thereof, or any combination thereof, b) reacting the solution obtained from step a) with a reducing agent, wherein at least one of the solutions in step a) comprises a dispersing assistant and whereby both steps a) and b) are performed continuously in a microreactor.