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Method for preparing methacrylic acid catalyst for iso-butane production

A methacrylic acid and catalyst technology, which is applied in the field of preparation of methacrylic acid catalysts produced from isobutane, can solve the problems of easy breakage, easy blockage, and affecting the long-term use effect of the catalyst, and achieve the effect of improving service life and high catalytic activity

Inactive Publication Date: 2016-11-09
王金明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The methacrylic acid catalysts in the prior art mainly use oxides such as silicon dioxide and titanium dioxide as the catalyst carrier, or they are mixed in liquid phase and roasted into particles, which have the disadvantages of being easily broken and easily blocked, which affects the long-term use effect of the catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] In a 5000L reactor, add 100Kg cross-linked polystyrene microspheres, 0.3Kg titanium chloride, 40Kg zinc chloride, 0.3Kg molybdenum chloride, 0.3Kg palladium chloride, 0.3Kg lithium chloride, 0.3Kg cerium chloride , 2000Kg tetrahydrofuran, 20Kg bisindole maleimide, 3Kg 2,5-dimethylpyrrole, react at 30°C for 8h, filter, and dry to obtain the catalyst product. Numbered M-1.

Embodiment 2

[0015] In a 5000L reactor, add 100Kg cross-linked polystyrene microspheres, 0.1Kg titanium chloride, 20Kg zinc chloride, 0.1Kg molybdenum chloride, 0.1Kg palladium chloride, 0.1Kg lithium chloride, 0.1Kg cerium chloride , 1000Kg tetrahydrofuran, 10Kg bisindole maleimide, 1Kg 2,5-dimethylpyrrole, react at 10°C for 5h, filter, and dry to obtain the catalyst product. Numbered M-2.

Embodiment 3

[0017] In a 5000L reactor, add 100Kg cross-linked polystyrene microspheres, 0.5Kg titanium chloride, 50Kg zinc chloride, 0.5Kg molybdenum chloride, 0.5Kg palladium chloride, 0.5Kg lithium chloride, 0.5Kg cerium chloride , 3000Kg tetrahydrofuran, 30Kg bisindole maleimide, 5Kg 2,5-dimethylpyrrole, react at 50°C for 5h, filter, and dry to obtain the catalyst product. Numbered M-3.

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PUM

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Abstract

The invention relates to a method for preparing a methacrylic acid catalyst for iso-butane production. According to the invention, in a reaction vessel, 100 crosslinking polystyrene microsphere, titanium chloride, zinc chloride, molybdenum chloride, palladium chloride, lithium chloride, cerium chloride, tetrahydrofuran, bisindolylmaleimide, and 2,5-dimethyl pyrrole are added, and the materials are subjected to a reaction under proper temperature, the obtained products are filtered and dried to obtain the catalyst product.

Description

technical field [0001] The invention relates to a preparation method of a catalyst, in particular to a preparation method of a catalyst for producing methacrylic acid from isobutane. Background technique [0002] Methacrylic acid is used in organic synthesis, polymer preparation, and can be used as a raw material for synthetic rubber. Manufacture of thermosetting coatings, synthetic rubber, fabric treatment agents, etc. It is a cross-linking monomer for the manufacture of acrylate solvent-based and emulsion-based adhesives to improve the bonding strength and stability of the adhesive. Manufactures coatings, insulation materials, adhesives and ion exchange resins. Used as an organic reagent, an important organic chemical raw material and an intermediate of a polymer. The plexiglass produced by its most important derivative product, methyl methacrylate, can be used in the windows of aircraft and civil buildings, and can also be processed into buttons, solar filters and auto...

Claims

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Application Information

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IPC IPC(8): B01J31/06B01J23/652C07C51/215C07C57/045
CPCB01J31/06B01J23/652B01J2231/70C07C51/215C07C57/04
Inventor 王琪宇
Owner 王金明
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