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US 2020/0399137A1 Dec.24,2020 3 [017]Inanotherembodiment,amethodforpurifyinga lithiumchloridecontainingsolutionisprovided.The methodincludesthestepsof:providingalithiumchloride containingfedsolutionandcontactingthelithiumchloride containingfedsolutionwithasolventextractionmixture. ofanaparatusfortheproductionoflithiumcarbonatefrom Thesolventextractionmixturebeingoperabletoremoveat leastaportionofthedivalentionspresentinthelithium chloridecontainingfedsolution.Themethodthenincludes thestepofproducingapurifiedlithiumchloridecontaining solutionhavingareducedconcentrationofdivalentions relativetothelithiumchloridecontainingfedsolution. [0018] Incertainembodiments,thesolventextraction mixturecomprisesphosphinicacid.Inalternateembodi ments,theextractionmixturecomprisespetroleumdistil lates.Inotherembodiments,thesolventextractionmixture comprisesamixtureofphosphinicacidandpetroleum distilates.Incertainembodiments,themethodfurther includesstepsforpreparinglithiumcarbonatefromalithium chloride-richstream.Themethodincludesthestepsof: convertingthelithiumchlorideinthepurifiedlithiumchlo [031]FIG.1isaschematicdiagramofanembodiment ride-richstreamtolithiumcarbonate.Theconversionstep canincludesuplyingthepurifiedlithiumchloride-rich streamtoanelectrochemicalcel,whereintheelectrochemi calcelismaintainedatconditionssuficienttoproducea lithiumhydroxide-richsolution;andcontactingsaidlithium hydroxide-richsolutionwithcarbondioxidetoproduce lithiumcarbonate. [0019] Incertainembodiments,themethodincludessteps fortheremovalofsilicapriortotheextractionstep.The stepsincludesuplyingthegeothermalbrinetoasilica removalsteptoproduceasilica-leanlithiumchloridecon tainingsolutionrelativetothegeothermalbrine;saidsilica removalstepoperabletoremoveatleastaportionofsilica presentinthegeothermalbrine.Themethodcanalsoinclude stepsforconcentratingthelithiumchloridepriortothe extractionstep,whichincludessuplyingsaidsilica-lean lithiumchloridecontainingsolutiontoalithiumchloride capturestep,saidlithiumchloridecapturestepbeingoper abletocapturesaidlithiumchloridefromthesilica-lean lithiumchloridecontainingstream. [020] Themethodcanalsoincludestepsforpreparing lithiumhydroxidefromalithiumchloride-richstream.The lithiumhydroxidepreparationincludingthestepsofcon vertingthelithiumchlorideinthepurifiedlithiumchloride richstreamtolithiumhydroxide.Theconversioncan includecontactingthepurifiedlithiumchloride-richstream andasodiumhydroxidesolutioninareactionveselto produceasolutioncomprisinglithiumhydroxide,wherein saidsodiumhydroxidesolutionispreparedbyelectrolyzing sodiumchlorideinanelectrochemicalcel,saidelectro chemicalcelcomprisingananode,acathode,andasemi permeablemembraneseparatingananodechamberanda cathodechamber. BRIEF DESCRIPTION OF THE DRAWINGS [021] FIG.1isaflowchartofthestepsofamethodfor theproductionoflithiumhydroxidefromageothermalbrine acordingtooneembodiment. [02] FIG.2isaflowchartofthestepsofamethodfor theproductionoflithiumcarbonatefromageothermalbrine acordingtooneembodiment. [023] FIG.3isaschematicdiagramofoneembodiment ofanaparatusfortheproductionoflithiumcarbonatefrom ageothermalbrineacordingtooneembodiment. forconcentratingtheconcentrationoflithiumchlorideina lithiumchloridecontainingstream. [032] FIG.12isaschematicdiagramofanembodiment forconcentratingalithiumchloridestream. DETAILED DESCRIPTION OF THE INVENTION [0033]Broadly,describedhereinaremethodsforthepro ductionoflithiumhydroxideandlithiumcarbonatefroma lithiumchloridecontainingsolution. [034] AsshowninFIG.1,inoneembodiment,the methodgeneralyincludesastepofprovidingalithium chloridecontainingsolution,suchasforexample,ageo thermalbrine,asilicaremovalstep,alithiumchloride extractionstep,anoptionallithiumchlorideconcentration step,anelectrochemicallithiumhydroxideproductionstep, anevaporationstep,andalithiumhydroxideisolationand dryingstep. [0035] As shown in FIG. 2, in one embodiment, the methodgeneralyincludesastepofprovidingalithium chloridecontainingsolution,suchasforexample,ageo thermalbrine,asilicaremovalstep,alithiumchloride extractionstep,anoptionallithiumchlorideconcentration step,anelectrochemicallithiumhydroxideproductionstep, andacarbonationstep,wherebylithiumhydroxideiscon vertedtolithiumcarbonate. [0036] Asusedherein,brinesolutionreferstoasolution ofalkaliand/oralkalineearthmetalsalt(s)inwater,wherein theconcentrationofsaltscanvaryfromtraceamountsupto thepointofsaturation.Generaly,brinessuitableforthe methodsdescribedhereincanbeaqueoussolutionsthatmay includealkalimetaloralkalineearthchlorides,bromides, sulfates,hydroxides,nitrates,andthelike,aswelasnatural brines.Brinescanbeobtainedfromnaturalsources,suchas, ChileanbrinesorSaltonSeageothermalresourcebrines, geothermalbrines,seawater,mineralbrines(e.g.,lithium chlorideorpotasiumchloridebrines),alkalimetalsalt brines,andindustrialbrines,forexample,industrialbrines recoveredfromoreleaching,mineraldresing,andthelike. Thepresentmethodsareequalyaplicabletoartificialy preparedlithiumchloridesolutions. [037]Acordingly,thepresentmethodsincludethe preparationandrecoveryoflithiumcarbonatefromsolu [0024]FIG.4isaschematicdiagramofoneembodiment ofanaparatusfortheproductionoflithiumcarbonatefrom ageothermalbrineacordingtooneembodiment. [0025] FIG.5isaschematicdiagramofoneembodiment ageothermalbrineacordingtooneembodiment. [0026] FIG.6showsthecomparesoflithiumhydroxide concentrationformultipleembodiments. [0027] FIG.7showsvariationofcelvoltageofanelec trolysiscelduringpreparationoflithiumhydroxideinone embodiment. [0028] FIG.8showslithiumhydroxideconcentrationasa functionofcurenteficiencyinoneembodiment. [029] FIG.9showsenergyconsumptionforproduction oflithiumhydroxideinoneembodiment. [030]FIG.10isaschematicdiagramofoneembodiment ofanaparatusfortheproductionoflithiumcarbonatefrom ageothermalbrineacordingtooneembodiment.PDF Image | Patent LITHIUM CHLORIDE CONTAINING BRINE
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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.| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |