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Heteropolyacid ionic liquid supported aminated magnetic composite of date cake structure, preparation method and application

A magnetic composite material and ionic liquid technology, applied in chemical instruments and methods, refining with oxygen-containing compounds, organic compound/hydride/coordination complex catalyst, etc., can solve the problem of low recovery rate, achieve rapid reaction, The operation steps are simple and the effect of improving stability

Active Publication Date: 2019-06-21
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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  • Abstract
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  • Claims
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Problems solved by technology

However, heteropolyacid ionic liquids also have disadvantages such as low recovery rate, so it is particularly important to choose a suitable immobilization method.

Method used

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  • Heteropolyacid ionic liquid supported aminated magnetic composite of date cake structure, preparation method and application
  • Heteropolyacid ionic liquid supported aminated magnetic composite of date cake structure, preparation method and application
  • Heteropolyacid ionic liquid supported aminated magnetic composite of date cake structure, preparation method and application

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Embodiment 1

[0041] Take 0.1 mol of N-methylimidazole in a water bath and heat it with magnetic stirring. When the temperature reaches 80°C, slowly add 0.1 mol of n-bromobutane dropwise. After the dropwise addition, the temperature was controlled at 85° C. and stirred until the reaction was complete, and a golden yellow, transparent, viscous liquid was obtained. After completion of the reaction, cool to 50° C., extract excess reaction raw materials with ethyl acetate several times, and distill under reduced pressure to remove residual ethyl acetate to obtain brominated N-methylimidazolium ionic liquid.

[0042] The resulting brominated N-methylimidazolium ionic liquid is further reacted with phosphotungstic acid to obtain a heteropolyacid ionic liquid: Measure 12 mmol of brominated N-methylimidazolium ionic liquid, weigh 3 mmol of phosphotungstic acid to completely dissolve it in deionized water , Slowly add phosphotungstic acid solution dropwise while stirring, white precipitate gradually...

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Abstract

The invention discloses a heteropolyacid ionic liquid supported aminated magnetic composite of a date cake structure, a preparation method and an application. The composite is prepared from raw materials including a heteropolyacid ionic liquid and an aminated magnetic composite by supporting the heteropolyacid ionic liquid on an aminated nano magnetic material with an ultrasonic immersing method.The preparation steps are shown as follows: firstly, the heteropolyacid ionic liquid is prepared through a substitution reaction, the aminated magnetic composite is prepared with a solvothermal method, and the heteropolyacid ionic liquid supported aminated magnetic composite is prepared with an ultrasonic supporting method. The product obtained with the method is powdery and brown, has uniform particle size distribution and has the date cake structure and stable properties. The defect of high probability of agglomeration of the magnetic materials is overcome, and the obtained material has gooddispersity, high magnetism and high yield, and raw materials are easy to obtain; the composite has magnetism and catalytic activity and can be effectively used for a catalyst for desulfuration of petroleum samples, and the catalyst can be separately recycled.

Description

technical field [0001] The invention relates to a jujube cake-type structural heteropolyacid ionic liquid loaded aminated magnetic composite material, a preparation method and application technology thereof, specifically a preparation method of a heteropolyacid ionic liquid and an aminated magnetic composite material and a jujube cake-type structural heteropolyacid ionic liquid The preparation method of the polyacid ionic liquid-loaded aminated magnetic composite material, and the use of the heteropolyacid ionic liquid-loaded aminated magnetic composite material of the present invention as a catalyst, and hydrogen peroxide as an oxidant to catalyze the desulfurization of petroleum samples, so as to realize the deep desulfurization of petrochemical industry etc. purpose. Background technique [0002] With the advancement and development of science and technology, petroleum plays an important role in promoting the process of industrialization. However, sulfur in the form of h...

Claims

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Application Information

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IPC IPC(8): B01J31/28B01J35/10B01J35/02C10G27/04
Inventor 沈昊宇陈嘉磊刘琦胡亚一吴冠雄周贞妊周靖松
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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