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METHOD FOR PRODUCING DISPERSION OF RARE EARTH FLUORIDE FINE PARTICLE 发明申请

2023-07-03 2770 127K 0

专利信息

申请日期 2025-07-12 申请号 JP2013171226
公开(公告)号 JP2013253018A 公开(公告)日 2013-12-19
公开国别 JP 申请人省市代码 全国
申请人 HITACHI CHEMICAL CO LTD
简介 PROBLEM TO BE SOLVED : To provide a method for producing a dispersion of rare earth fluoride fine particles which ensures mass productivity and yield in production and is suitable for a process in which coating is performed to a rare earth magnet for the purpose of increasing coercive force. SOLUTION : In a method for producing a dispersion of rare earth or alkaline earth metal fluoride fine particles, fluoride fine particles are synthesized by dropping a hydrofluoric acid aqueous solution into an aqueous solution with a rare earth or alkaline earth metal of a water-soluble salt dissolved therein, recovered by pressure filtration, and then dispersed again in an organic solvent. COPYRIGHT : (C)2014, JPO&INPIT


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