PROCESS FOR PRODUCING FINE, MORPHOLOGICALLY OPTIMIZED PARTICLES USING JET MILL, JET MILL FOR USE IN SUCH PROCESS AND PARTICLES PRODUCED

摘要

The present invention relates to a process for producing fine particles with a high aspect ratio and/or a low specific surface area by means of jet mills, wherein an alkaline grinding aid is added to the grinding gas before it is fed into the grinding chamber of the jet mill. The invention is directed to the micronisation of particles of layered structure material having an interplanar distance ranging from 0.30 nm to 0.40 nm as measured by X-ray diffraction method.