| 简介 |
PROBLEM TO BE SOLVED : To markedly reduce a production cost by diminishing production steps by using a rare earth metal oxide directly as a starting material without converting it into a salt in the production of a rare earth metal complex, especially a fluorescent rare earth metal complex.
SOLUTION : In the production of a rare earth metal complex, a mixture of a solvent in which a rare earth metal oxide powder is dispersed with an at least stoichiometric amount of an inorganic acid is heated, during which time a ligand supply starting material is added thereto and reacted therewith.
COPYRIGHT : (C)2007, JPO&INPIT |
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