Search International and National Patent Collections

1. (WO2018022467) PROCESSES FOR FORMING TITANIUM CATECHOL COMPLEXES

Pub. No.:    WO/2018/022467    International Application No.:    PCT/US2017/043393
Publication Date: Fri Feb 02 00:59:59 CET 2018 International Filing Date: Sat Jul 22 01:59:59 CEST 2017
IPC: C07F 7/28
H01M 4/60
Applicants: LOCKHEED MARTIN ENERGY, LLC
Inventors: MILLARD, Matthew
GOELTZ, John
Title: PROCESSES FOR FORMING TITANIUM CATECHOL COMPLEXES
Abstract:
Titanium complexes containing at least one catecholate ligand can be desirable active materials for flow batteries and other electrochemical energy storage systems. Such complexes can be formed through reacting a catechol compound with a titanium reagent in an organic solvent, removing a byproduct species, and then obtaining an aqueous phase containing a salt form of the titanium catechol complex, particularly an alkali metal salt form. More specifically, the methods can include: forming a catechol solution containing a catechol compound and an organic solvent, contacting a titanium reagent with the catechol solution to form a reaction mixture, reacting the titanium reagent with the catechol compound to form an intermediate titanium catechol complex and a byproduct species, separating the byproduct species, and combining an alkaline aqueous solution containing a base with the intermediate titanium catechol complex to produce a salt form titanium catechol complex at least partially dissolved in an aqueous phase.