Extractive organic phase and application thereof

An organic phase and extraction technology, applied in the direction of improving process efficiency, etc., can solve the problems of low selectivity and low efficiency
CN108754141AActive Publication Date: 2018-11-06SHANGHAI INST OF ORGANIC CHEM CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI INST OF ORGANIC CHEM CHINESE ACAD OF SCI
Publication Date
2018-11-06

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Abstract

The invention discloses an extractive organic phase and application thereof. The extractive organic phase comprises a diluting agent, a modifying agent and a compound expressed as a formula (I); the concentration of the compound expressed as the formula (I) (as described in the description) in the extractive organic phase is 0.05-2 mol / L; and the concentration of the modifying agent in the extractive organic phase is 0.05-2 mol / L. The application can comprise the following steps: the extractive organic phase is used for extracting water phase extractives containing lithium ions; and the layering is performed to collect organic phases. The extractive organic phase and the extracting method for extracting lithium have the advantages of high extracting efficiency of the lithium ions, easy phase separation and convenient operation method, meanwhile, achieve excellent lithium-sodium and lithium-potassium separation coefficients, and can realize high-selectivity separation of lithium from other alkali metal.
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Description

technical field

[0001] The invention relates to an extraction organic phase and its application. Background technique

[0002] Lithium is the metal element with the smallest density in nature and has the smallest atomic radius. Its simple metal and its compounds have different chemical and physical properties from many other metal elements, and it has a wide range of industrial uses. The application of lithium and its compounds involves glass, ceramics, medicine, smelting, refrigeration and other fields. Especially in the field of new energy, lithium is known as an "energy element" and is an important raw material for lithium batteries. The global demand is rapidly increasing at a rate of 8-10% per year. On the other hand, the two stable isotopes of lithium, lithium-6 and lithium-7, have important uses in the field of nuclear energy. Lithium-6 is an essential raw material in nuclear fusion reactors, and lithium-7 is a regulator in fission reactors. agent and coolant. Ther...

Claims

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