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andwasforcedtopassthroughaheatexchangerlocated within the reaction tank. The solution was under constant stiringat50RPM.Oncethesolutionreached95°C.,the temperaturewasmaintainedatthatlevelfor30minutes.The water vapors along with carbon dioxide generated were passedthroughatubecondenserinordertocondenseand separatethewaterfromthecarbondioxide,whichwasthen returnedtothepressurizedCO tank. Theresultantpulpcontainingthelithiumcarbonatewas thickenedunderheatat85to90°C.andtheresultantdense 10 pulpwaswashedwithtwovolumesofdemineralizedwaterat 95°C.Thefiltrateandthewaterusedinwashingweresentto thesolarevaporationtanks.Thepurifiedlithiumcarbonate wasdriedat180°C.for35minutesinanindirectdryer.The resultantbaterygradelithiumcarbonatehadthecomposition 15 describedinTable7. 10 theratiooftheorganicsolventtothebrineinthestepof treatingthemagnesiumdepletedbrineis1/5to6/1,and thestepoftreatingthemagnesiumdepletedbrineincludes anincubationperiodofbetween1to60minutesanda totalphaseseparationtimerangingfrom1to120min utesatatemperaturerangingfrom0to50°C.atapH between1and7;and furthercomprisingadding,asaphasemodifier,5to20% Volumetributylphosphatewithrespecttotheorganic Solvent;and re-extractingboronfromthechargedorganicphase,inone ormoresteps,witha0.01to3moles/Lsolutionof Sodiumhydroxideforanincubationperiodoftimerang ingfrom1to60minutesandatotalphaseseparation timerangingfrom1to120minutesatatemperature rangingfrom0to50°C.inordertoproduceaboron depletedbrine. 4.A methodaccordingtoclaim1whereinsaidboron depletedbrineismadetoreactwitha20to30%byweight aqueoussolutionofsodiumcarbonateatapHrangingfrom8 to12,atatemperaturerangingfrom70to170°C.foraperiod oftimerangingfrom5to150minutes,inoneormoresteps, inordertoproducealithiumcarbonateprecipitate. % TABLE 7 Purifiedbaterygradelithiumcarbonate. Element Li Li2CO Na K C Mg Ca B 18.71 99.51 O.OOOO3 OOOOO1 O.OO2 O.OOO4 O.OO1 O.OO3 Althoughthepresentinventionhasbeendescribedand ilustratedindetail,itisclearlyunderstoodthatthesameisby wayofilustrationandexampleonlyandisnottobetakenby wayoflimitation,theScopeofthepresentinventionbeing30 interpretedbythetermsoftheappendedclaims. What isclaimed is: 1.Amethodforproducingbaterygradelithiumcarbonate startingwithbrinesolutionsfromnaturalorindustrialsources35 comprisingthefollowingsteps: carbonateprecipitateissubjectedtoasolid/liquidseparation viathickeningandfiltrationwhilemaintainingthetempera turebetween50and95°C.inordertoproducealithium carbonatecakethatisthenwashedwithoneormoreVolumes ofdemineralizedwateratatemperaturebetween50to95°C. 6.A methodaccordingtoclaim1whereinsaidlithium carbonatecakeisreactedwithasaturatedcarbonicacidsolu tiongeneratedbydisolvingcarbondioxideatapressure rangingfrom1to5atmospheresindemineralizedwaterata temperaturerangingfrom0to30°C.forareactiontime rangingfrom1to120minutesinordertoformabicarbonate oflithiumsolutionwithaconcentrationrangingfrom1to58 g/L. 7.Amethodaccordingtoclaim1whereinsaidbicarbonate of lithium solution is filtered in order to remove insoluble impurities. 8.A methodaccordingtoclaim7whereinsaidfiltered bicarbonateoflithiumsolutionisheatedtoatemperature rangingfrom50to100°C.forareactiontimerangingfrom1 to120minutesatapressurerangingfrom1to5atmospheres inordertobreakdown saidbicarbonateoflithiumintoa purifiedlithiumcarbonate. 9.A methodaccordingtoclaim1whereinsaidlithium carbonateprecipitateisthickenedandthenfilteredmaintain ingthetemperatureofsaidthickenedandfilteredlithium carbonateprecipitateatatemperaturerangingfrom50to95° C.andwashingsaidpurifiedlithiumcarbonatecakewithone ormoreVolumesofdemineralizedwateratatemperature rangingfrom50to95°C. 10.A methodaccordingtoclaim1whereinsaidlithium carbonatecakeisdriedinadryeratatemperatureranging from100to250°C.foraperiodoftimerangingfrom1to120 minutes. 1.A methodaccordingtoclaim3whereinaboroncon tainingsolutionderivedfromsaidre-extractionstepissentto Solarevaporationpols. 12.A methodaccordingtoclaim5whereinafiltrateand waterusedinthewashingsteparesenttoSolarevaporation pols. 13.Amethodaccordingtoclaim8whereincarbondioxide isgeneratedwhensaidfilteredbicarbonateoflithiumsolution aditionofcalciumhydroxidetobrineinordertoprecipi tatemagnesium,calciumandboron;concentratingthe treatedbrinebysolarevaporationinordertoprecipitate andseparatemagnesiumhydroxide,pentahydratedcal ciumSulfateandheptahydratedcalciumborategenerat ingamagnesiumdepletedbrine; treatingsaidmagnesiumdepletedbrinewithanorganic Solventinordertoremoveresidualboronandyieldinga borondepletedbrine; addingsodiumcarbonatetosaidborondepletedbrinein ordertoprecipitatethelithiumcarbonate; colectingsaidlithiumcarbonatetoformalithiumcarbon atecake; 40 45 reactingsaidlithiumcarbonatecakewithcarbonicacid50 producedbyreactingcarbondioxidegaswithwaterin ordertoformbicarbonateoflithium; separatingthebicarbonateoflithiuminsolutionfrom insolubleimpuritiescontainedinsaidlithiumcarbonate; heatingsaidbicarbonateoflithiumsolutioninorderto55 convertintoalithiumcarbonateprecipitate; separatingsaidlithiumcarbonateprecipitatefromsaid bicarbonateoflithiumsolution;anddryingsaidlithium carbonateprecipitate. 2.Amethodaccordingtoclaim1whereinsaidmagnesium depletedbrinecontainslesthan0.001%byweightmagne siumandbetween0.8and1.2%byweightlithium. 3.A methodaccordingtoclaim1whereinsaidorganic Solventfortreatingsaidmagnesiumdepletedbrineincludes isoctylalcoholdissolvedinacommercialsolvent, thestepoftreatingthemagnesiumdepletedbrineinvolves oneormoreextractionsteps, 60 65 US 8,691,169B2 25 5.A methodaccordingtoclaim1whereinsaidlithiumPDF Image | Patent Production of Li from Industrial Brine
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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 |