A kind of ionic liquid type polyoxometalate catalyst and its preparation method and application

A technology of polyoxometalates and ionic liquids, applied in chemical instruments and methods, preparation of organic compounds, catalysts for physical/chemical processes, etc., can solve problems such as no reports, achieve reduced operating time and temperature, and good product selection Sexuality and the effect of reducing application costs

Active Publication Date: 2021-12-07
NORTHEAST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the focus of research is mainly on the single acid or oxidation catalytic conversion, and the research on coupling its acid and oxidation properties together to catalyze the multi-stage series reaction and step-by-step conversion of corn stover has not been reported.

Method used

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  • A kind of ionic liquid type polyoxometalate catalyst and its preparation method and application
  • A kind of ionic liquid type polyoxometalate catalyst and its preparation method and application
  • A kind of ionic liquid type polyoxometalate catalyst and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Weigh a certain amount of H 6 P 2 Mo 18 o 62 Fully dissolved in distilled water, different molar ratios of 1-(3-sulfonic acid) propyl-3-methylimidazole (MIMPS) were added to H 6 P 2 Mo 18 o 62 solution, the resulting mixture was aged at room temperature for 2-5h, suction filtered, washed, and dried to obtain [MIMPS] with n=1-6 n h 6-n P 2 Mo 18 o 62 Catalyst, and measure its productive rate, productive rate is 50-72%, wherein mechanical loss and man-made loss have bigger influence to productive rate, the results are shown in Table 1.

[0043] Table 1

[0044]

[0045]

[0046] The method for catalyzing the multistage stepwise reaction of corn stalks with the ionic liquid type polyoxometalate catalyst provided by the invention is as follows:

[0047] In the autoclave, add 10~50mg of corn stalks and [MIMPS] n h 6-n P 2 Mo 18 o 62 Catalyst, when the mixed liquid is heated to 120-160°C, the pressure is 0.5-1.5MPa of oxygen, and the reaction is carried...

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PUM

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Abstract

The invention discloses an ionic liquid type polyoxometalate catalyst, the structural formula is [MIMPS] n h 6‑n P 2 Mo 18 O 62 , where n=1‑6, by adding phosphomolybdic acid H 6 P 2 Mo 18 O 62 Dissolve in distilled water, then add 1‑(3‑sulfonic acid group) propyl‑3‑methylimidazole to obtain a mixed solution, age the mixed solution at room temperature, prepare through suction filtration, washing, and drying, used for Catalyzes the conversion of biomass straw into phenolic compounds, xylose and glucose.

Description

technical field [0001] The invention relates to the technical field of catalytic materials, in particular to an ionic liquid polyoxometalate catalyst and its preparation method and application. Background technique [0002] Modern society is facing the problems of resource shortage, energy crisis and environmental degradation, and the clean utilization of renewable resources is the only way for sustainable development. Among the many renewable resources, biomass wastes such as agricultural and forestry wastes have abundant reserves and wide sources of raw materials, especially in Jilin Province, where biomass waste resources are more abundant, among which about 80 million tons of biomass straw can be collected annually , There are 36 million tons of corn stalks. At present, less than 50% of them are used including feed and solid fuels, and less than 1% is used for chemical conversion. A large amount of corn stalks are incinerated and cause air pollution. Therefore, low energ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/02B01J31/18C07C37/00C07C39/00C07G99/00C13K1/00C13K13/00
CPCB01J31/0284B01J31/0298B01J27/188C07C37/004C13K1/00C13K13/002C07G99/00C07C39/00
Inventor 王晓红李一鸣张雪艳孙宁悦李颖
Owner NORTHEAST NORMAL UNIVERSITY
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