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Extract metal ions from brine

A metal ion, metal ion imprinting technology, applied in the direction of ion exchange, ion exchange regeneration, cation exchange materials, etc., can solve the problems of dependence, amplification of environmental degradation, long time and so on

Active Publication Date: 2022-06-17
爱克斯司博申公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method of metal extraction takes considerable time, relies on a relatively dry and stable atmosphere, and amplifies environmental degradation due to the large amounts of salt left on the ground

Method used

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  • Extract metal ions from brine
  • Extract metal ions from brine
  • Extract metal ions from brine

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Experimental program
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Embodiment

[0088] Synthesis of Polymerizable Lithium Ligands

[0089] 1-(Vinylphenyl)4,4',4"-trifluoro-1,3-butanedione was prepared to support the preparation of lithium-imprinted polymers. First, 4-vinylphenylacetophenone was prepared in tetrabutylene Prepared by the palladium-catalyzed reaction of 4-bromoacetophenone with 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclotetrasiloxane in the presence of ammonium fluoride. Then, 4-vinylphenylacetophenone was condensed with ethyl trifluoroacetate to obtain 1-(p-vinylphenyl)4,4',4"-trifluoro-1,3-butanedione. Figure 7A is a diagram of the reaction mechanism for the synthesis of 1-(vinylphenyl)4,4',4"-trifluoro-1,3-butanedione.

[0090] Preparation of Lithium Imprinted Polymer Beads

[0091] Lithium-imprinted polymers are prepared by a lithium polymerizable compound dispersed in a non-polar solvent (mineral oil), a cross-linking agent (ethylene glycol dimethacrylate (EDGMA)), a porogen (dimethyl sulfoxide ( DMSO) or dimethylformamide (DMF)) an...

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Abstract

A material comprising porous particles comprising a metal ion imprinted polymer. Metal ion imprinted polymers are formed from a hydrophilic comonomer, a metal-containing polymerizable compound, and a crosslinker. The metal-containing polymerizable compound comprises at least one metal chelating ligand. Metal ion-imprinted polymers contain multiple selective binding sites for metal ions. A method comprising passing brine containing metal ions through a reactor containing the material. The method further includes draining the brine from the reactor, contacting the porous particles with water, and pressurizing the reactor with carbon dioxide. The carbon dioxide reacts with the adsorbed metal ions to form a metal carbonate solution. The method further includes depressurizing the reactor to precipitate the metal carbonate from the metal carbonate solution and draining the metal carbonate solution from the reactor.

Description

[0001] This application claims the benefit of US Provisional Application No. 62 / 376,515, filed August 18, 2016, and US Provisional Application No. 62 / 406,135, filed October 10, 2016, the entire contents of which are incorporated herein by reference. [0002] government rights [0003] This invention was made with government support under Grant No. DOE DE-EE-0006747 awarded by the Department of Energy. The government has certain rights in the invention. technical field [0004] The present disclosure relates to extraction of metal ions from brine. Background technique [0005] Brines used for metal extraction are often found in underground reservoirs ("salar brines") and contain high concentrations of dissolved salts. For example, extraction of lithium from Salar brine is a common method of lithium production because of its favorable extraction cost. Salar brines in Argentina, Chile, and Bolivia can contain up to 1500 ppm lithium, and high-quality lithium compounds can be ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/14B01J20/04B03B5/00
CPCB01J20/06B01J20/22B01J20/268B01J20/28007B01J20/2803B01J20/3064B01J20/3085B01J20/3204B01J20/328B01J20/3293B01J20/28057B01D15/203B01D15/361B01J20/043B01J20/267B01J20/28045B01J20/285B01J20/3475B01J39/20B01J47/02Y02P10/20B01J39/05B01J49/53B01J49/06C01D15/08C22B26/12
Inventor 马克·霍恩博斯特尔苏珊娜·文图拉斯里尼瓦斯·巴米迪
Owner 爱克斯司博申公司