Physical Sciences, Inc.

Aaron R Rathmell

Dorin V Preda

Prakash B Joshi

John D Lennhoff

Colin M Hessel

Mitchell T Antalek

Matthew B Boucher

A method of separating scandium from a feedstock wherein a scandium enriched solution is produced from the feedstock and the scandium enriched solution is extracted to produce an organic phase of the scandium enriched solution. The organic phase of the scandium enriched solution is re-extracted to produce an aqueous phase including scandium chloride. The aqueous phase is precipitated and calcinated to produce scandium oxide powder.

Process for separating scandium from complex salt mixtures

An antimicrobial composition including low molecular weight dendrimers of formula (1): 

Antimicrobial compound

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Upton, MA, United States of America

Aaron R Rathmell