Extracting agent for separating lithium isotopes and use thereof
AssigneeShanghai Institute of Organic Chemistry, Chinese Academy of Sciences
InventorsBeili Li, Huaiyu Sheng, Jinbo Hu
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Abstract
The present invention discloses an extracting agent for separating lithium isotopes and an organic extraction phase containing the extracting agent; the organic extraction phase easily enriches 7Li and achieves the separation of lithium isotopes. The present invention also discloses a high-efficiency method for separating lithium isotopes in an aqueous solution, in which the organic extraction phase of the present invention is used, said organic extraction phase being suitable for single-stage and multi-stage extraction processes.
Claims9
An extraction organic phase for separating lithium isotopes, wherein said extraction organic phase comprises:
- a diluent, and the compound of formula (I) used as an extractant:
- wherein,
- Z is oxygen atom, sulfur atom, or nitrogen atom substituted by R9, wherein R9 is hydrogen, C1-6 alkyl-sulfonyl, C1-6 haloalkyl-sulfonyl, benzenesulfonyl or C1-6 alkyl-benzenesulfonyl;
- R1, R2, R3, R4, R5, R6, R7 and R8 are independently hydrogen, C1-6 alkyl, C1-6 haloalkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 alkoxy, C3-6 cycloalkyl, halogen or phenyl.
Dependencies are inferred from the claim text.