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Nonmetal composite catalytic system consisting of organic matter and use thereof

A composite catalyst, non-metallic technology, applied in the field of N-hydroxyphthalimide and diphenolic organic compounds, can solve the problems of many by-products, high reaction temperature, low conversion rate of raw materials, etc. The effect of less product, mild reaction conditions and wide application range

Inactive Publication Date: 2008-02-13
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods often have the shortcomings of high reaction temperature, low conversion rate of raw materials, low product selectivity, and many by-products.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: ethylbenzene air oxidation

[0020] In a 250 ml three-necked flask, put 100 ml of ethylbenzene, 1.6 g of N-hydroxyphthalimide and 15.7 g of 1-fluoro-9,10-anthraquinone; The air guide pipe in the reaction solution is fed into air continuously, and the air flow rate is 50 ml / min, and more air is discharged from the serpentine condenser tube, reacted for 15 hours, and analyzed the product composition with a gas chromatograph. As a result, the conversion of ethylbenzene was 45.1%, the selectivity of acetophenone was 60.3%, the selectivity of 1-phenylethanol was 15.5%, and the selectivity of 1-phenylethylhydroperoxide was 24.1%.

Embodiment 2

[0021] Embodiment 2: Oxygen oxidation of ethylbenzene

[0022] In a 250 ml autoclave, put 50 ml of ethylbenzene, 2.0 g of N-hydroxyphthalimide and 1.0 g of 2-ethyl-9,10-anthraquinone; When the internal temperature is 80°C, feed oxygen until the oxygen pressure in the kettle reaches 0.5 MPa, react for 5 hours, and analyze the composition of the product with a gas chromatograph. As a result, the conversion of ethylbenzene was 38.3%, the selectivity of acetophenone was 52.3%, the selectivity of 1-phenylethanol was 11.5%, and the selectivity of 1-phenylethylhydroperoxide was 36.1%.

Embodiment 3

[0023] Embodiment 3: Oxygen oxidation of ethylbenzene

[0024] Ethylbenzene was oxidized in the same manner as in Example 2, except that the quinone compound was used. The reaction results are shown in Table 1. In the product distribution of Table 1, ketone represents acetophenone, alcohol represents 1-phenethyl alcohol, and over represents 1-phenylethyl hydroperoxide.

[0025] Table 1: The reaction results of various quinones and diphenols for the oxidation of ethylbenzene

[0026] Numbering

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PUM

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Abstract

A non-metal composite catalyst system for the selective catalytic oxidizing of hydrocarbons to generate alcohols, aldehyde, keton and hydrogen alkylperoxide is prepared from quinone compounds including benzoquinone, naphthylquinone and anthraquinone, and N-hydroxy phthaloylimine.

Description

technical field [0001] The present invention relates to a non-metallic composite catalytic system, that is, a non-metallic composite catalytic system composed of two kinds of organic substances, specifically, it is composed of quinones or diphenolic organic substances that can generate quinone compounds under oxygen conditions and Composition of N-hydroxyphthalimide. [0002] The present invention also relates to a method for using the above-mentioned catalyst in catalytic selective oxidation of hydrocarbons. Under the action of this catalytic system, hydrocarbons are used as reactants and selectively oxidized with air or oxygen to generate alcohols, aldehydes, ketones, acids and Oxygenated compounds such as alkyl hydroperoxides. Background technique [0003] Organic oxygenates include alcohols, aldehydes, ketones, acids, and alkyl hydroperoxides, which are fine organic products with a wide range of uses. There are many production methods for these types of compounds, amon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/02
Inventor 徐杰杨贯羽仝新利
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI