Alkylimidazole ethylenediaminetetraacetic acid iron (III) water-soluble ionic liquid and synthetic method thereof

A technology of alkylimidazole ethylenediaminetetraacetic acid iron and ionic liquid, which is applied in the field of preparation of iron-based ionic liquid, can solve the problems such as inability to synthesize, and achieve the effects of low surface tension, high iron concentration, and simple synthesis method
CN103554028AInactive Publication Date: 2014-02-05BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
Publication Date
2014-02-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an alkylimidazole ethylenediaminetetraacetic acid iron (III) water-soluble ionic liquid and a synthetic method thereof. The technical scheme is characterized in that: an alkylimidazole chlorine salt or bromine salt, KOH, ferric chloride hexahydrate and ethylenediaminetetraacetic acid are taken as raw materials for synthesis of alkylimidazole ethylenediaminetetraacetic acid iron (III). Compared with conventional halogen-containing iron-based magnetic ionic liquid, alkylimidazole ethylenediaminetetraacetic acid iron (III) has the characteristics of adjustable acid-base property, high water solubility and the like. The water solution of alkylimidazole ethylenediaminetetraacetic acid iron (III) not only has relatively high oxidation-reduction reversibility, but also has lower surface tension and higher iron (III) concentration compared with a water solution of Fe-EDTA.
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Description

technical field

[0001] The invention relates to a preparation method of a halogen-free iron-based ionic liquid, in particular to a synthesis of an iron-based ionic liquid with good water solubility and adjustable pH. The synthesized ionic liquids exhibit good water solubility, magnetism, redox reversibility, and low surface tension. Background technique

[0002] Room temperature ionic liquids are composed of organic cations and inorganic / organic anions, and are liquid salts at or near room temperature. Iron-based ionic liquids are composed of organic cations and iron-containing inorganic or organic anions. Ionic liquids containing ferric tetrachloride(bromide) anions are the most widely studied metal-based magnetic ionic liquids.

[0003] Ionic liquids containing ferric tetrachloro(bromide) anions have many unique properties, such as magnetism, low vapor pressure, high thermal stability, high hydrophobicity, low viscosity (J. Mater. Chem., 2006, 16, 1254) and Low surface ...

Claims

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