METHOD AND APPARATUS FOR POWDER TYPE MATERIAL PROCESSING Russian patent published in 1994 - IPC

FIELD: chemical industry. SUBSTANCE: apparatus has plasmotron 1, outlet hole 2 of which is mounted in inlet hole 3 of partition chamber 4. Powder type material feeding device 9 is mounted in the partition chamber arch roof 5. Outlet hole 11 of the device is sending material directly in plasma stream 13, that is acting in partition chamber 4 and is used for evaporation with production of ionized gas. Positively charged ions are being collected at flat base 7 of partition chamber 4 by negatively charged magnetic core 8, mounted on base 7. Negatively charged ions are being collected at arch roof 5, on which positively charged magnetic core 6 is fixed. It neutralizes the ions and collected gas is divided for components in gas division system, that has vacuum equipment 16 and group of zeolite membranes 17. Partition chamber 4 is communicated with in series connected chemical elements selection chambers 19, 20, 21. Plasmatrons 34, 35, 36, that exercise additional heating of positively charged ions, are mounted in inlet holes 18, 31, 32 of the last three chambers. Positively charged ions are additionally heated up to the temperature of evaporation of the most high-boiling chemical element of the powder type material and then it is condensed in chemical elements selection chamber 19, that is embraced by negatively charged magnetic core 22. Then, using the magnetic core, the pure chemical element is neutralized and through hole 39 in base 28 taken away. The rest selection chambers 20, 21 are designed and operate like chamber 19. The chambers exercise in series selection of successive by temperature of boiling chemical elements from multicomponent powder type material by additional heating in plasma stream of plasmatrons 34, 35, 36 of positively charged ions up to the temperature of evaporation of the next by the temperature of evaporation chemical element and its selection. Outlet hole 33 of the last selection chamber 21 communicates with filter 37, that is connected with blowing mechanism 38 to transport positively charged ions. EFFECT: method and apparatus are used to produce pure chemical elements. 2 cl, 1 dwg, 1 tbl