Preparation of lithium phosphate catalysts

Details Preparation of lithium phosphate catalysts Preparation of lithium phosphate catalysts

B - Operations, Transporting

01

J

B01J 27/18 (2006.01) B01J 27/16 (2006.01)

Patent

CA 2542783

A new method for preparing lithium phosphate catalysts is disclosed. The method comprises precipitating a lithium phosphate from a mixture comprising a first aqueous solution which contains lithium and sodium ions and a second aqueous solution which contains phosphate and borate ions. The resultant lithium phosphate catalyst has increased activity and selectivity in the isomerization of an alkylene oxide to the corresponding allylic alcohol.

L'invention concerne un nouveau procédé de préparation de catalyseurs au phosphate de lithium. Le procédé consiste à précipiter un phosphate de lithium à partir d'un mélange contenant une première solution aqueuse laquelle renferme des ions lithium et sodium ainsi qu'une seconde solution aqueuse contenant des ions phosphate et borate. Le catalyseur au phosphate de lithium obtenu présente une activité et une sélectivité accrues dans l'isomérisation d'un oxyde d'alkylène par rapport à l'alcool allylique correspondant.

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