1235234-32-8Relevant articles and documents
A method for preparing ionic liquid
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Paragraph 0078; 0079, (2018/01/11)
The invention provides a preparation method for an ionic liquid. The method comprises the following steps: a, reacting a tertiary amine compound, tertiary imine compound or tertiary phosphorus compound with carbonate so as to obtain an intermediate containing quaternary ammonium cation or quaternary phosphorus cation; and b, reacting the intermediate produced in the step a with an imine compound, or subjecting the intermediate produced in the step a to hydrolysis at first and then to a reaction with the imine compound or an imine salt. The imine type quaternary ammonium or quaternary phosphorus ionic liquid prepared by using the method is especially applicable to a halide-ion-sensitive electrochemical system, e.g., a lithium ion secondary battery and an electrochemical super capacitor. According to the method, raw materials are non-toxic and harmless; reaction conditions are mild; requirements on production equipment are not high; all the conventional reaction vessels applicable to liquid phase reactions can be used in principle; and operations like feeding, mixing, distilling and filtering are simple.