Simbol, Inc.

Terralithium LLC

Hydro-quebec

Plurion Limited

Alger Alternative Energy, LLC

Ut-battelle, Inc.

All American Lithium LLC

Geothermal Energy Project, LLC

Simbol Mining Corporation

Plurion Systems, Inc.

Applied Intellectual Capital Limited

Limtech Corporation

Plurion Limited Company

Stephen Harrison

Samaresh Mohanta

John Burba

Robert Lewis Clarke

Brian Dougherty

J Peter Millington

C V Krishnamohan Sharma

Robert Blanchet

Bruce A Moyer

Ramesh R Bhave

Brian E Viani

M Scott Conley

Elizabeth Geler

Peter J Millington

Mariappan Parans Paranthaman

Bernd Busse

Brian J Dougherty

Kamyab Amouzegar

Mario Boucher

Cv Krishnamohan Sharma

Ray F Stewart

Christine Ellen Vogdes

Vishwanath Deshmane

Nicholas Linneen

Syed Z Islam

Robert Scannell

M Parans Paranthaman

Dennis L Howe

Behzad Mahdavi

Guy St Amant

C V Krishnmohan Sharma

Pei-Yu Lan

Diana Rex

John Galil Salim Lahlouh

C V Krishanamohan Sharma

Diana Peykova

This invention relates to a method for the preparation of lithium carbonate from lithium chloride containing brines. The method can include a silica removal step, capturing lithium chloride, recovering lithium chloride, supplying lithium chloride to an electrochemical cell and producing lithium hydroxide, contacting the lithium hydroxide with carbon dioxide to produce lithium carbonate.

Preparation of lithium carbonate from lithium chloride containing brines

This invention relates to treated geothermal brine compositions containing reduced concentrations of iron, silica, and manganese compared to the untreated brines. Exemplary compositions contain a concentration of manganese less than 10 mg/kg, a concentration of silica ranging from less than 10 mg/kg, and a concentration of iron less than 10 mg/kg, and the treated geothermal brine is derived from a Salton Sea geothermal reservoir.

Treated geothermal brine compositions with reduced concentrations of silica, iron and manganese

This invention relates to treated geothermal brine compositions containing reduced concentrations of lithium, iron and silica compared to the untreated brines. Exemplary compositions contain concentration of lithium ranges from 0 to 200 mg/kg, concentration of silica ranges from 0 to 30 mg/kg, concentration of iron ranges from 0 to 300 mg/kg. Exemplary compositions also contain reduced concentrations of elements like arsenic, barium, and lead.

Treated geothermal brine compositions with reduced concentration of silica, iron and lithium

A method of concentrating a lithium-containing aqueous solution, the method comprising: (i) providing a water-permeable structure having an inner surface and outer surface, wherein at least said outer surface is coated with a water-permeable hydrophilic polymer having a thermal stability of at least 100° C.; and (ii) flowing a lithium-containing aqueous feed solution having an initial concentration of lithium over said inner surface while said outer surface is in contact with an aqueous draw solution containing a higher overall ion concentration than said lithium-containing aqueous feed solution, to result in forward osmosis of water from said lithium-containing aqueous feed solution to said aqueous draw solution, and wherein said forward osmosis results in a lithium-containing aqueous product solution having an increased concentration of lithium relative to the initial concentration of lithium in the lithium-containing aqueous feed solution.

Forward osmosis composite membranes for concentration of lithium containing solutions

This invention relates to a method for producing geothermal power using geothermal brines while producing a reduced silica and iron brine having improved injectivity. The resulting compositions include a composition with reduced silica, iron, and lithium having reduced quantity of total suspended solids.

Process for producing geothermal power, selective removal of silica and iron from brines, and improved injectivity of treated brines

A lithium extraction composite comprising: (i) a porous support and (ii) particles of a lithium-selective sorbent material coated on at least one surface of the support, wherein the support has a planar membrane, fiber (or rod), or tubular shape. A method for extracting and recovering a lithium salt from an aqueous solution by use of the above-described composition is also described, the method comprising (a) flowing the aqueous source solution through a first zone or over a first surface of the lithium extraction composite to result in selective lithium intercalation in the lithium-selective sorbent material in the first zone or first surface; and (b) simultaneously recovering lithium salt extracted in step (a) from said lithium-selective sorbent material by flowing an aqueous stripping solution through a second zone or over a second surface of the lithium extraction composite in which lithium ions from the first zone or first surface diffuse.

Lithium extraction composite for recovery of lithium from brines, and process of using said composition

Systems, methods and apparatuses to concentrate lithium containing solutions using forward osmosis units are provided, which, for example, can include providing at least one forward osmosis unit having at least one lithium containing solution chamber having at least one first inlet and at least one first outlet, at least one brine chamber having at least one second inlet and at least one second outlet, and at least one selectively permeable membrane positioned between the at least one lithium containing solution chamber and the at least one brine chamber, and conveying a lithium containing solution through the at least one lithium containing solution chamber and a concentrated brine solution through the at least one brine chamber, said conveying causing water from the lithium containing solution to be drawn through the at least one selectively permeable membrane and into the concentrated brine solution, such that a concentrated lithium containing solution exits through the first outlet and a less concentrated brine solution exits through the second outlet.

Processes for producing lithium compounds using forward osmosis

Provided are methods of extracting lithium from a lithium containing solution, as well as the resulting compositions. The method includes supplying a lithium containing solution to a lithium capture step, the lithium capture step being operable to capture lithium from the lithium salt containing solution. The method further includes recovering lithium from the lithium capture step to produce a lithium rich stream. In especially preferred methods, the lithium capture step is performed to increase the lithium to sodium ratio above at least 1:1. Optionally, the lithium rich stream can be purified to remove divalent ions and borate ions. The lithium rich stream is then concentrated by supplying the lithium rich stream to a reverse osmosis step to produce a concentrated lithium rich stream.

Processes for producing lithium compounds using reverse osmosis

This invention relates to a method for preparing a lithium activated alumina intercalate solid by contacting a three-dimensional activated alumina with a lithium salt under conditions sufficient to infuse lithium salts into activated alumina for the selective extraction and recovery of lithium from lithium containing solutions, including brines.

Porous activated alumina based sorbent for lithium extraction

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Benicia, CA, United States of America

Stephen Harrison