Patent ID: 6858381

Claim:
A method for forming fine particles by blowing out a plurality of types of solutions from their respective nozzles into a mixing chamber of a larger diameter than diameters of the nozzles to allow the solutions to mix and react with each other and discharging a liquid resulting from the mixing and reaction from a discharge port of a smaller diameter than the diameter of the mixing chamber, wherein one of the plurality of types of solutions is blown out into the mixing chamber as a rectilinear flow of turbulent flow, and at a position before eddy viscosity which is formed when the rectilinear flow is blown out from the nozzle into the mixing chamber reaches a maximum, the other of the plurality of types of solutions is blown out as a crossflow that crosses the rectilinear flow at a substantially right angle, and the plurality of types of solutions are thereby allowed to mix and react with each other instantaneously.