Patent Production of Li from Industrial Brine

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Patent Production of Li from Industrial Brine ( patent-production-li-from-industrial-brine )

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(12)UnitedStatesPatent Perezetal. (54) METHODFORTHEPRODUCTIONOF BATTERYGRADELITHIUMCARBONATE FROMINATURALAND INDUSTRIAL BRINES (71)Applicant:MineraExarS.A.,Mendoza(AR) (72)Inventors:WaldoPerez,Mendoza(AR);Hugo AdanCarlosBarientos,Santiago (CL);ClaudioSuarez,Ontario(CA); MarceloBravo,Antofagasta(CL) (*) Notice: Subjecttoanydisclaimer,thetermofthis patentisextendedoradjustedunder35 U.S.C.154(b)by0days. (21) Appl.No.:13/627,089 (22)Filed: Sep.26,2012 (65) PriorPublicationData US 2013/0101484A1 Apr.25,2013 (30) ForeignApplicationPriorityData (10)PatentNo.: US8,691,169B2 (45)DateofPatent: Apr.8,2014 4,243,392A 1/1981 Brownetal. 2. sA .E. E. Kulbergetal Oct.24,2011 (AR) •1-isa uu v1.x-w- ------------------------------ (51) Int.Cl. C22B26/00 (2006.01) 2011O103922 (52) U.S.Cl. USPC.423/1795;423/421;423/164;423/158: 423/166;423/277 (58) FieldofClasificationSearch USPC.423/158,164,16,179.5,277,421 Seeaplicationfileforcompletesearchhistory. (56) ReferencesCited U.S.PATENTDOCUMENTS 4,036,713A * 7,1977 Brown .205,536 4,036,718A 7,1977 Brownetal. 14Claims,2DrawingSheets NaC tnumcarbonate /? precipitation 21 Pulp 23 solid/liquidseparation/ andwashing Blcarbonateof4thium formation isoctylicalcohol. Ah - Tritysulfate---Boror 18 Wastess 4s 18 Bre Haatar 42 9 S 37 BaterygradeLico .A 35 43-2- HCo.solution Fitiate 29 s Fiteredsolution Breakdow oftcartorateof itfit intslithiu? carignats - I-L/ Solid:liquidseparation andwashing 3-ico, Lico crying Briefrom cois -!Brins 3 2 cao.Magnasiurnardcalcium precipitation 5. Salidicuidseparation MgH) 18 4. A-Nagasolution 7 Brine /8 MgO) Solar vaporationpoet , is'so 2 10 Brins CaC-8HO " .Alkalinesolution NaChisolton solventextractortwoNaBO ves...'ato 3. Pulp 32 USOO8691169B2 w--/ 4,980,136A 5,219,550 A 5,993,759A 11/19Wilkomirsky 6,048,507A 4/2000 AmouZegar 6,921,522B2 7/2005Borytaetal. SS R: 1858.E, 2012,089516Al 7,2012Donaldson FOREIGN PATENT DOCUMENTS WO 2010/OO6366 * 12010 *citedbyexaminer PrimaryExaminer— StevenBos (74)Atorney, Agent, or Firm— Robert L. Stearns; DickinsonWright,PLLC (57) ABSTRACT Itispossibletoproducebaterygrademetaliclithiumfrom naturally occurring or industrial brine by a process compris ingthefollowingsteps:(i)precipitatingmagnesiumwith calciumhydroxide;(i)removalofboronviaextractionof solvents;(i)precipitationoflithiumwithsodiumcarbonate; (iv)transformationoflithiumcarbonatetobicarbonateof lithiumwithcarbonicacid;(V)decompositionofbicarbonate oflithiumintohighpuritylithiumcarbonateasaresultof heatingofthesolution. Re-precipitationoflithiumcarbonatebytheformationof bicarbonateoflithiumallowsfortheremovalofthemajority ofcontaminantswhichco-purifywithlithiumcarbonateand yieldbaterygradehighlypurifiedlithiumcarbonate. raneZa-Kullberg et al. 12/1990 Brownetal. 6/1993 Brownetal.

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Product and Development Focus for Infinity Turbine

ORC Waste Heat Turbine and ORC System Build Plans: All turbine plans are $10,000 each. This allows you to build a system and then consider licensing for production after you have completed and tested a unit.

Redox Flow Battery Technology: With the advent of the new USA tax credits for producing and selling batteries ($35/kW) we are focussing on a simple flow battery using shipping containers as the modular electrolyte storage units with tax credits up to $140,000 per system.

Our main focus is on the salt battery. This battery can be used for both thermal and electrical storage applications.

We call it the Cogeneration Battery or Cogen Battery.

One project is converting salt (brine) based water conditioners to simultaneously produce power.

In addition, there are many opportunities to extract Lithium from brine (salt lakes, groundwater, and producer water).

Salt water or brine are huge sources for lithium. Most of the worlds lithium is acquired from a brine source. It's even in seawater in a low concentration. Brine is also a byproduct of huge powerplants, which can now use that as an electrolyte and a huge flow battery (which allows storage at the source).

We welcome any business and equipment inquiries, as well as licensing our turbines for manufacturing.

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