摘要 |
FIELD: metallurgy. ^ SUBSTANCE: double complex chlorides of ittrium and potassium is reduced by lithium at temperature 450-720C in inert atmosphere and high pressure. Received reacting mass is heated at a rate 3-5C/min up to the temperature for 60-300C higher the reduction temperature and then it is implemented vacuum separation at a temperature 750-780C and evacuation 110-4 millimetres of mercury. ^ EFFECT: it is provided receiving of microcrystalline metallic powder of itrrium with minimal content of oxygen and gas-producing admixtures, described by high dispersity. ^ 5 cl, 1 tbl, 1 dwg, 1 ex |