APPARATUS FOR OBTAINING HIGHLY-DISPERSED POWDER OF PURE IRON Russian patent published in 2002 - IPC

FIELD: powdered metallurgy. SUBSTANCE: apparatus has vertical heated pipe, cylindrical widener with branch pipes for supplying iron organic compound vapors and discharge of waste gases, closure with carrier gas supply branch pipe, and collection hopper located in lower part of pipe. Apparatus is further provided with heated cylinder having gas supplying branch pipe and cone located in lower part of cylinder. Diameter of cone upper part is equal to that of heated cylinder. Vertical pipe is made in the form of truncated cone whose upper end has diameter equal to that of widener and lower end has diameter equal to that of heated cylinder, with truncated cone upper and lower end diameter ratio being 0.7-0.3. Apparatus of such construction allows pure iron powder with particle average diameter of 1.5-2.8 micron and contaminant content of 0.1% to be produced. Such powder may be used in pharmaceutical, food- processing industry, as well as in agriculture, in particular, in animal farming. EFFECT: wider operational capabilities and improved quality of powder produced by apparatus. 2 cl, 1 dwg, 1 tbl