Increased throughput for large-scale production of low melt organoamine stabilized silver nano-particles

A method of producing organoamine-stabilized silver nanoparticles, comprising:

• forming a solution comprising an organic solvent and a first amount of organoamine and heating the solution to a first temperature;
• wherein the first temperature is from about 50° C. to about 80° C.;
• adding a silver salt to the solution heated to the first temperature;
• adding a second amount of organoamine to the solution heated to the first temperature;
• cooling the solution from the first temperature to a second temperature;
• adding a hydrazine to the solution to reduce the silver salt forming a reduced silver salt, and reacting the reduced silver salt with the organoamine to form organoamine-stabilized silver nanoparticles while maintaining the solution at the second temperature;
• and
• precipitating the solution after performing the reaction and recovering the organoamine-stabilized silver nanoparticles, by a two-solvent precipitation procedure comprising adding a non-solvent to the solution and then after the non-solvent is added, adding an alcohol to the solution;
• wherein the molar ratio of silver salt to total organoamine is from about 1:4 to about 1:10.