Samarium-containing rare earth polishing powder and preparation process thereof

The invention discloses samarium-containing rare earth polishing powder. According to the molar ratio, the samarium-containing rare earth polishing powder comprises the following components that Sm2O3/TREO is equal to 1.4*10<-4>-0.014, La2O3/TREO is equal to 0.06-0.12, Pr7O11/TREO is equal to...

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Bibliographic Details
Main Authors SHI JUNLONG, WEI QIDONG, JIANG JITAO, MA XIANGQIN, LI HUPING, NIU JUANJUAN, JIANG CHUNHU
Format Patent
LanguageChinese
English
Published 09.01.2018
Subjects
ADHESIVES
CHEMISTRY
DYES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
POLISHING COMPOSITIONS OTHER THAN FRENCH POLISH
SKI WAXES
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Summary:The invention discloses samarium-containing rare earth polishing powder. According to the molar ratio, the samarium-containing rare earth polishing powder comprises the following components that Sm2O3/TREO is equal to 1.4*10<-4>-0.014, La2O3/TREO is equal to 0.06-0.12, Pr7O11/TREO is equal to 8.6*10<-6>-0.0047, Nd2O3/TREO is equal to 2.97*10<-5>-0.0074, and the balance of CeO2/TREO is equal to 0.27-0.46. The rare earth polishing powder is obtained by the following steps: by adopting the samarium-containing rare earth salt solution as a main material, adding a fluorine-containing precipitant solution into the material, controlling the fluorine content in a product by regulating the concentration of fluorine ions in a precipitant, and then washing, drying, calcining, crushing and grading andthe like. Different from other production processes, the process is mainly characterized by introducing samarium element into the rare earth material and introducing fluorine element into the precipitant, and has the advanta
Bibliography:Application Number: CN20171891745