Abstract

A spinel sorbent for adsorbing lithium ions from a liquid is provided. The sorbent has the general formula Li1 +xMn2−yM1m1M2m2 . . . MkmkO4+z, where M1, M2, . . . , Mk are cations different than lithium or manganese; m1, m2, . . . mk are each greater than or equal to 0; x can vary in the range of 0 and 1; y can vary in the range of −0.1 and 0.9; z can vary in the range of −2 and 1; where +m1+m2+ . . . +mk; and k is zero or a positive integer. The sorbent has a cubic close packed (CPP) lattice defining a interplanar distance y=x configured to allow passage of lithium ions through the interplanar distance and prevent passage of manganese through the interplanar distance; and has ion exchange sites configured to reversibly ion-exchange a lithium ion.

IPC Classes  ?

• B01J 39/10 - Oxides or hydroxides
• B01J 39/02 - Processes using inorganic exchangers
• B01J 49/53 - Regeneration or reactivation of ion-exchangersApparatus therefor characterised by the regeneration reagents for cationic exchangers
• C01G 45/1221 - Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof
• C02F 1/42 - Treatment of water, waste water, or sewage by ion-exchange
• C02F 101/10 - Inorganic compounds
• C22B 3/24 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means by adsorption on solid substances, e.g. by extraction with solid resins
• C22B 26/12 - Obtaining lithium

Abstract

Sorbent compounds useful in the extraction of lithium from liquid sources such as brines (naturally occurring and synthesized), leachate solutions from the leaching of minerals or recycled materials, and others are described. The sorbent compounds are characterized by a larger median particle size and coarser particle size distribution that improves commercial synthesis and performance of the sorbent compounds.

IPC Classes  ?

• B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
• B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• B01J 20/30 - Processes for preparing, regenerating or reactivating
• B01J 20/34 - Regenerating or reactivating

IPC Classes  ?

• B01D 15/04 - Separating processes involving the treatment of liquids with solid sorbentsApparatus therefor with ion-exchange materials as adsorbents
• B01D 15/08 - Selective adsorption, e.g. chromatography
• B01J 20/02 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material

Abstract

1+x2-ym1m2mk4+z4+z, where M1, M2,...,Mk are cations different than lithium or manganese; m1, m2,…mk are each greater than or equal to 0; x can vary in the range of 0 and 1; y can vary in the range of -0.1 and 0.9; z can vary in the range of -2 and 1; where y = x+m1+m2+…+mk; and k is zero or a positive integer. The sorbent has a cubic close packed (CPP) lattice defining a interplanar distance configured to allow passage of lithium ions through the interplanar distance and prevent passage of manganese through the interplanar distance; and has ion exchange sites configured to reversibly ion-exchange a lithium ion.

IPC Classes  ?

• B01J 20/02 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material
• B01D 15/04 - Separating processes involving the treatment of liquids with solid sorbentsApparatus therefor with ion-exchange materials as adsorbents
• B01D 15/08 - Selective adsorption, e.g. chromatography

Abstract

Sorbent compounds useful in the extraction of lithium from liquid sources such as brines (naturally occurring and synthesized), leachate solutions from the leaching of minerals or recycled materials, and others are described. The sorbent compounds are characterized by a larger median particle size and coarser particle size distribution that improves commercial synthesis and performance of the sorbent compounds.

IPC Classes  ?

• B01D 15/08 - Selective adsorption, e.g. chromatography
• B01J 20/02 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material
• B01J 20/30 - Processes for preparing, regenerating or reactivating
• C01D 15/00 - Lithium compounds

Abstract

Compositions and methods of preparing sorbent compositions (SCs) and protonated sorbent compositions (PSCs) for use in concentrating lithium from native brines are described. In particular, SCs of the general formula Li1.3_1.6Mn1.6_1.704 , methods of preparing the SCs and PSCs that have improved properties for lithium extraction and concentration over single and multiple cycles are described.

IPC Classes  ?

• B01J 20/02 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material
• B01J 20/30 - Processes for preparing, regenerating or reactivating