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采用高温分解稀土与１－苯基－３－甲基－苯甲酰吡唑酮－５（ＨＰＭＢＰ）配合物的方可生成活性Ｌｎ２Ｏ３（Ｌｎ＝Ｎｄ、Ｓｍ、Ｅｒ）。其比表面从１～３ｍ２／ｇ增大至１１～１５ｍ２／ｇ，提高了酯化反应的催化活性。
The active Ln2O3 (Ln = Nd, Sm, Er) was synthesized by the pyrolysis of rare earth with 1-phenyl-3-methyl-benzoylpyrazolone-5 (HPMBP) Its specific surface increased from 1 ~ 3m2 / g to 11 ~ 15m2 / g, which enhanced the catalytic activity of esterification.