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METHOD FOR PREPARATION OF POLISHING POWDERS WITH REGULABLE PARTICLE SIZE BASED ON RARE EARTH OXIDES 发明授权

2023-11-26 1320 130K 0

专利信息

申请日期 2025-07-16 申请号 RU2006100039
公开(公告)号 RU2359914C2 公开(公告)日 2009-06-27
公开国别 RU 申请人省市代码 全国
申请人 ABDUKHAMIDOV FARUKH SHUKHRATOVICH
简介 FIELD : chemistry. SUBSTANCE : invention can be used at production of polishing materials. The rare earths carbonates are precipitated with the solution of carbonic acid, filtered, dried, and are transformed by calcinations to rare earth oxides. The precipitation of rare earth carbonates is carried out at temperature 20-60°C; the precipitation degree is regulated in the range 75-100%. EFFECT : invention allows to obtain without size specification the powders with different particle size, in particular 0, 4-0, 8 mcm, 0, 8-1, 2 mcm, 1, 2-1, 5 mcm. 4 cl, 1 tbl, 1 ex


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