Patent ID: 8747699
Filing Date: 2014-06-10
Classification: B01J,B22F

Abstract:
1. A method for producing metal microparticles, comprising the steps of: providing a first processing surface and a second processing surface, the first and second processing surfaces being arranged to be opposite to each other so as to be capable of approaching to and separating from each other, at least one of the first and second processing surfaces rotating relative to the other; introducing at least a fluid to be processed between the first processing surface and the second processing surface; generating a first force to move at least one of the first and second processing surfaces in a direction of separating from the other by a supply pressure of the fluid to be processed; maintaining a distance between the first processing surface and the second processing surface in a minute space equal to or less than 1 mm by a balance between the first force and a second force to move at least one of the first processing surface and the second processing surface in a direction of approaching to the other; forming a thin film fluid by passing the fluid to be processed between the first and second processing surfaces; reducing a metal compound and a metal element ion in the thin film fluid in the minute space formed between the first and second processing surfaces, thereby separating metal microparticles.