Commonwealth Scientific and Industrial Research Organisation

Li-Technology Pty Ltd.

K-Max Pty Ltd.

Bright Minz Pty Ltd

A.c.n. 630 589 507 Pty Ltd

Mark Daniel Urbani

Gary Donald Johnson

Nicholas John Vines

Chu Yong Cheng

Gavin Beer

A process for the recovery of lithium hydroxide from lithium sulfate containing solutions, the process characterised by the following method steps:

Recovery of lithium hydroxide

A process for the recovery of lithium from minerals rich in lithium and phosphate, the process comprising passing an ore containing one or more minerals rich in lithium and phosphate to an acid leach step thereby producing a pregnant leach solution, subjecting the pregnant leach solution to a series of process steps by which one or more impurity elements are removed, and recovering lithium as a lithium containing salt product, wherein the series of process steps by which one or more impurity elements are removed includes a low pH impurity removal step conducted at an elevated temperature for the precipitation of one or more impurities.

Lithium recovery from phosphate minerals

A process for the recovery of lithium from lithium bearing mica rich minerals, the process comprising passing an ore containing one or more lithium bearing mica rich minerals to at least one pre-treatment step, passing the pre-treated ore to an acid leach step thereby producing a pregnant leach solution, subjecting the pregnant leach solution to a series of process steps in which one or more impurity metals are removed, and recovering lithium as a lithium containing salt product.

Recovery process

A method for the processing of potassium containing materials comprises:

Method for the processing of potassium containing materials

A process for the separation of nickel, cobalt or both from impurity elements selected from one or more of calcium, magnesium, manganese and chloride contained in a leach solution, the process comprising the step of subjecting the leach solution to solvent extraction using a carboxylic acid (such as Versatic 10), a hydroxyoxime such as LIX 63, a kinetic accelerator such as TBP, and optionally a stabilizer.

Solvent extraction process for separating cobalt and/or nickel from impurities in leach solutions

A process for separating one or more metal ions forming a first group of metal ions such as copper, zinc and ferric ions, from one or more other metal ions forming a second group of metal ions such as cobalt and nickel, comprising:

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Wattle Grove, Australia

Mark Daniel Urbani