发明名称 METHOD OF MICROCRYSTALLINE POWDER OF ITTRIUM RECEIVING
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
申请公布号 RU2361699(C1) 申请公布日期 2009.07.20
申请号 RU20070146927 申请日期 2007.12.20
申请人 OTKRYTOE AKTSIONERNOE OBSHCHESTVO "GOSUDARSTVENNYJ NAUCHNO-ISSLEDOVATEL'SKIJ I PROEKTNYJ INSTITUT REDKOMETALLICHESKOJ PROMYSHLENNOSTI "GIREDMET" 发明人 PATRIKEEV JURIJ BORISOVICH;VOROB'EVA NATAL'JA SERGEEVNA;SOCHENKOVA TAT'JANA GENNAD'EVNA
分类号 B22F9/18;C22B59/00 主分类号 B22F9/18
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