Patent PRODUCING LITHIUM DIRECTLY FROM LITHIUM FEED SOURCES

PDF Publication Title:

Patent PRODUCING LITHIUM DIRECTLY FROM LITHIUM FEED SOURCES ( patent-producing-lithium-directly-from-lithium-feed-sources )

Previous Page View | Next Page View | Return to Search List

Text from PDF Page: 008

US2019/0048483A1 Feb.14,2019 PRODUCING LITHIUM DIRECTLY FROM LITHIUM FEEDSOURCES PRIORITYCLAIM [0001] ThisaplicationclaimsthebenefitofU.S.Provi sionalPatentAplicationNo.62/542,413,filedAug.8, 2017,andU.S.ProvisionalPatentAplicationNo.62/581, 140,filedNov.3,2017,thedisclosuresofeachofwhichare incorporatedintothisspecificationbyreferenceinits entirety. FIELD OF TECHNOLOGY [02] Thepresentdisclosuregeneralyrelatestoproduc inglithiumdirectlyfromfedsources.Morespecificaly,for example,thepresentdisclosurerelatestoproducinglithium usingalithiumfedsolutionselectedfromthegroupcon sistingoflithium chloridebrine,lithiumsulfatespodumene liquor,lithiumhydroxide,andacombinationthereof.Addi tionalythepresentdisclosurealsorelatestocontinuous procesesforobtaininglithiummetal. BACKGROUND [03] Lithium isasoft,silver-whitemetalbelongingto thealkalimetalgroupofchemicalelements.Lithium is highlyreactiveandflamable,thoughitistheleastreactive ofthealkalimetals.Becauseofitshighreactivity,lithium doesnotocurfrelyinnature.Instead,lithiumonlyapears naturalyincompositions,usualyionicinnature.Therefore, lithiummetalcanbeobtainedonlybyextractionoflithium from suchcompoundscontaininglithium. [04] Curently,commonwaysofobtaininglithiumare throughextractionoflithiumpresentineitherspodumeneor brine,producing lithium carbonate first.Lithium isthen obtained from the lithium carbonate in two phases: (1) conversionoflithiumcarbonateintolithiumchloride,and (2)electrolysisoflithiumchlorideusingahigh-temperature moltensaltsuchasLici. SUMMARY [05] Previousproductionoflithiummetalfrom spo dumeneorbrinetypicalyhasbenatlocationsremotefrom thelithiumproductionfacilities,involvingfirsttheproduc tionoflithiumchloride(directly,orfromlithiumcarbonate asanintermediary),folowedbyhightemperatureelectroly sisofmoltenlithium chloridesaltatalocationremotefrom thefedstockproduction.Thereisaneedforaprocesthat produces lithium on-site directly from the spodumene or brine,withouttransportationordeliveryofthespodumene orbrineoverasubstantialdistance,whichcouldinvolve substantialoperatingcostsand/orisleseficient. [06] Inanembodiment,thepresentdisclosurerelatesto aprocesforproducinglithiumdirectlyfromlithiumcon tainingbrineorliquor.Theprocesincludesprovidinga lithiumfedsolutionselectedfromthegroupconsistingof lithiumchloridebrine,lithiumsulfatespodumeneliquor, andacombinationthereof.Thelithium fedsolutionis providedtoanelectrolysiscelcomprisingacathodesuit ableforelectrolysisoflithium,andananode.Anionizing electriccurentisprovidedtotheelectrolysiscel,thereby providinglithiummetalatthecathode. [0007] Inanembodiment,thelithium chloridebrinecon tains1.5-18%lithium. [0008] Inanembodiment,thelithiumchloridebrinecon tains4-6%lithium. [0009] Inanembodiment,thelithium chloridebrineis preparedbyevaporationinanevaporationpond. [010] Inanembodiment,theevaporationpondisselected from thegroupconsistingofasolarevaporationpondandan electricevaporationpond. [01] Inanembodiment,thelithium chloridebrineis returnedfromtheelectrolysisceltotheevaporationpond. [012] Inanembodiment,thelithiumsulfatespodumene liquorcontains1-18%lithium. [0013] Inanembodiment,thelithiumsulfatespodumene liquorcontains1.5-18% lithium. [014] Inanembodiment,thelithiumsulfatespodumene liquorcontains16-18% lithium. [015] Inanembodiment,thelithium sulfatespodumene liquorisprovidedfromareservoir,andthelithiumsulfate spodumeneliquorisreturnedfromtheelectrolysisceltothe reservoir. [016] Inanembodiment,thelithium fedsolutionis preparedwithoutremovingboronormagnesium. [017] Inanembodiment,thelithium fedsolutionis continuouslyprovidedtotheelectrolysiscel,andthe lithiummetaliscontinuouslyproducedatthecathode. [0018]Inanembodiment,thetemperatureintheelectroly siscelforprovidinglithiummetalis15to40°C. [019] Inanembodiment,thetemperatureintheelectroly siscelforprovidinglithiummetalisaproximately23°C. [020] Inanembodiment,thelithiumfedsolutionhasa pH ofu3n-9. [021] An advantageofthepresentdisclosureistopro ducelithiumon-sitedirectlyfromthespodumeneorbrine. Byusingalithium fedsolutionselectedfrom thegroup consistingoflithium chloridebrine,lithium sulfatespo dumeneliquor,andacombinationthereof,thespodumeneor brinecanbedirectlyusedwithoutconvertingtolithium carbonateorlithiumchloride,andwithouttransportationor delivery over a substantial distance as in conventional lithiumproducingproceses,thereforedesirablystreamlin ingthelithiumproductionprocess,reducingoperatingcosts, and/orimprovingenergy efficiencyinproductionoflithium. As shown in Table 1,the process for producing lithium accordingtocertainnon-limitingembodimentseliminates alofthelargescaleproductionprocessesrequiredtoturn lithium containingbrineorspodumeneintolithiummetal, insteaddepositingpurelithiummetaldirectlyfrom lithium containingbrineorspodumeneliquor.

PDF Image | Patent PRODUCING LITHIUM DIRECTLY FROM LITHIUM FEED SOURCES

PDF Search Title:

Patent PRODUCING LITHIUM DIRECTLY FROM LITHIUM FEED SOURCES

Original File Name Searched:

US20190048483A1.pdf

DIY PDF Search: Google It | Yahoo | Bing

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 (Standard Web Page)