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Preparation method for isobutyraldehyde catalyst

A catalyst and isobutyraldehyde technology, applied in chemical instruments and methods, heterogeneous catalyst chemical elements, physical/chemical process catalysts, etc., can solve the problems of low yield of isobutyraldehyde, blocked raw materials, etc., and achieve high catalytic activity , good stability and simple preparation method

Inactive Publication Date: 2019-04-26
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the mode of producing isobutyraldehyde in industry is the by-product that produces when n-butanol is prepared by oxo synthesis at present, and its production line is to be main raw material with petroleum resource, and this not only makes the yield of isobutyraldehyde lower, and raw material also Research on new production routes to isobutyraldehyde is essential due to lack of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 3.037 g of potassium metavanadate and 2.313 g of citric acid were dissolved in 55 ml of distilled water, and 8.88 g of ferric nitrate nonahydrate was dissolved in 55 ml of distilled water. Then the two solutions were mixed, heated at 80°C in a constant temperature water bath to evaporate to dryness, dried at 120°C for 12 hours, and calcined in a muffle furnace at 550°C for 4 hours. After sieving the obtained solid catalyst, select the appropriate catalyst to load into the reaction. Into the tube, a mixture of carrier gas and raw material was introduced, and the test was performed at 340°C.

Embodiment 2

[0025] Dissolve 2.574 g of ammonium metavanadate in 55 ml of distilled water, and dissolve 8.88 g of ferric nitrate nonahydrate in 55 ml of distilled water. Then mix the two solutions, heat at 80°C in a constant temperature water bath to evaporate to dryness, dry at 120°C for 12 hours, and calcinate in a muffle furnace at 550°C for 4 hours. After sieving the solid catalyst obtained, select the appropriate catalyst to load into the reaction. Into the tube, a mixture of carrier gas and raw material was introduced, and the test was performed at 340°C.

Embodiment 3

[0027] 2.574 g of ammonium metavanadate and 2.313 g of citric acid were dissolved in 55 ml of distilled water, and 8.88 g of ferric nitrate nonahydrate was dissolved in 55 ml of distilled water. Then the two solutions were mixed, heated at 80°C in a constant temperature water bath to evaporate to dryness, dried at 120°C for 12 hours, and calcined in a muffle furnace at 550°C for 4 hours. After sieving the obtained solid catalyst, select the appropriate catalyst to load into the reaction. Into the tube, a mixture of carrier gas and raw material was introduced, and the test was performed at 340°C.

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PUM

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Abstract

The invention provides a preparation method for an isobutyraldehyde catalyst, relates to a catalyst preparation method and particularly provides a method for synthesizing the isobutyraldehyde catalystfrom methanol and ethanol or propanol. The method comprises the following steps: a certain amount of vanadate, citric acid and two or three of nitrates of Fe, Cu, Ni, Zr, Ca, Ce and the like are dissolved in an aqueous solution, a mixed solution is evaporated to dryness at high temperature in a thermostat water bath, dried at 100-120 DEG C and calcined in a muffle furnace at 400-600 DEG C, and the solid catalyst with the special V-Fe-M-N (M is Cu or Ni, and N is one of Zr, Ca and Ce) structure is prepared. The catalyst has good catalytic performance when used for one-step reaction for preparation and co-production of isobutyraldehyde from methanol and ethanol or propanol.

Description

Technical field [0001] The invention relates to a method for preparing a catalyst, in particular to a method for preparing an isobutyraldehyde catalyst. Background technique [0002] Isobutyraldehyde is an important organic chemical raw material with a wide range of applications. Many downstream products can be prepared through it, and they are all widely used. With the development of industrialization, the demand for isobutyraldehyde is increasing. . At present, the industrial production method of isobutyraldehyde is a by-product produced by oxo synthesis of n-butanol. Its production line uses petroleum resources as the main raw material, which not only makes the yield of isobutyraldehyde lower, but also the raw materials. Due to lack of resources, it will be hindered, so it is indispensable to study new production routes for preparing isobutyraldehyde. After continuous exploration, it is found that using methanol ethanol from coal chemical industry as a raw material source ca...

Claims

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Application Information

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IPC IPC(8): B01J23/847C07C47/02C07C45/00
CPCB01J23/002B01J23/8472B01J2523/00C07C45/00B01J2523/17B01J2523/55B01J2523/842B01J2523/48C07C47/02
Inventor 王康军董玉范旭萌张雅静许光文丁茯
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY