MANUFACTURE OF CARBOXYLATE OF LANTHANIDE METAL, AND ITS USE AS CATALYST FOR POLYMERIZATION OF DIENIC MONOMER

PROBLEM TO BE SOLVED: To provide a method for manufacturing a carboxylate of a lanthanide metal in high yield by which the manufacturing process of the carboxylate of the lanthanide metal is simplified and the reaction time is effectively shortened. SOLUTION: The method of manufacturing a carboxylat...

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Bibliographische Detailangaben
Hauptverfasser:	KO SHIHO, SHU SHINAN
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for manufacturing a carboxylate of a lanthanide metal in high yield by which the manufacturing process of the carboxylate of the lanthanide metal is simplified and the reaction time is effectively shortened. SOLUTION: The method of manufacturing a carboxylate of a lanthanide metal of the formula Ln(RCOO)3 (Ln is a lanthanide metal element having an atomic number from 57 to 71; R is a 1-19C hydrocarbon group) comprises compounding (A) a lanthanide metal (Ln) compound selected from an oxide or a carbonate of the lanthanide metal (Ln), (B) a 2-20C carboxylic acid, (C) water, and (D) an inert solvent so that the molar ratio of the water (C) to the lanthanide metal (Ln) may be larger than 5:1, and reacting them within the temperature range of 0-300 deg.C.