| 简介 |
Provided is a method for preparing a cerium oxide from a rare earth compound, the method including the steps of : adding potassium permanganate to a rare earth compound containing cerium to obtain a cerium-containing composite; washing the cerium-containing composite; leaching the washed cerium-containing composite; after the leaching step, adding a pH adjusting agent to obtain cerium precipitate; and drying and calcining the washed cerium precipitate to obtain a cerium oxide.(AA) Cerium-containing composite(BB, HH) Washing with water(CC) Acid leaching(DD) Selective precipitation(EE) Filtration(FF) Neutralizing precipitation(GG) Filtration(II) Drying / calcining(JJ) Cerium oxideCOPYRIGHT KIPO 2015 |
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