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Preparation of Spherical Rare Earth Red Phosphor Particles by Droplet to Particle Conversion 发明授权

2023-05-10 1740 793K 0

专利信息

申请日期 2025-09-11 申请号 KR1020050079436
公开(公告)号 KR100728378B1 公开(公告)日 2007-06-07
公开国别 KR 申请人省市代码 全国
申请人 KOREA RESOURCES CORPORATION; KOREA RESOUCES CORPORATION
简介 The invention provides a method for preparing spherical rare earth red phosphor particle by droplet-particle transform, comprising : a step of preparing initiation materials with metal ion concentration of 0.005M to 2.0M by adding acid into rare earth oxides; a carbamide mixing step of adding carbamide into the initiation materials and mixing; a liquid drop forming step of forming liquid drops by spraying or atomizing using ultrasonics; a drop-particle transforming step comprising evaporating, drying and pyrogenation; and a powder forming step including cleaning, drying the processed particles.


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