Patent ID: 8864056

Claim:
A process for generating fine particles of a material, comprising: feeding the material to a milling chamber of a jet mill; generating a milling gas medium with a rotary blower or a radial blower and directing the generated milling gas medium through at least one fluid nozzle into the milling chamber; impinging the material with the milling gas medium in the milling chamber to obtain a milling product comprising coarse and fine grains; passing the milling product to a dynamic air classifier; separating the fine grains from the coarse grains in the dynamic air classifier; removing the fine grains from the dynamic air classifier and collecting the fine grains; and returning the coarse grains to the milling chamber; wherein a pressure of the milling gas medium is less than or equal to 4 bar (abs) and a temperature of the milling gas is less than 100° C.