| 简介 |
PROBLEM TO BE SOLVED : To provided a method for synthesizing a rare-earth oxo isopropoxide safely with a high yield, by using a rare-earth metal, which is more inexpensive than anhydrous rare-earth chlorides, as a raw material.
SOLUTION : In a solvent containing ≥90 wt.% isopropyl alcohol, a rare-earth metal and isopropyl alcohol are reacted with each other in the presence of a mercury compound catalyst, a solvent is added thereto or the solvent is partially replaced, and then in a solvent containing ≥25 wt.% 6-10C aromatic hydrocarbon solvent or a saturated 5-12C hydrocarbon solvent, water is added to conduct partial hydrolysis reaction, whereby the rare-earth oxo isopropoxide is synthesized.
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