Toluene oxidation method

A toluene and oxidant technology, which is applied in the fields of ozone oxidation to prepare carboxylic acid, hydrocarbon oxidation to prepare oxygenated compounds, organic chemistry, etc., can solve the problems of equipment corrosion, environmental pollution, harsh operating conditions, etc. Improve the effect of simple and easy-to-control process
CN103288592AActive Publication Date: 2013-09-11CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2013-09-11

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Abstract

The invention discloses a toluene oxidation method. The method comprises a step of letting toluene make contact with an oxidizing agent under an oxidation reaction condition, and the method is characterized in that the oxidizing agent is a gas containing ozone. According to the invention, the total selectivity of benzaldehyde and benzoic acid is high, and the selectivity of benzaldehyde is improved in the presence of a catalyst containing titanium.
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Description

technical field

[0001] The present invention relates to a method for oxidizing toluene, and more particularly relates to a method for oxidizing toluene with ozone as an oxidant. Background technique

[0002] Benzaldehyde is an important chemical raw material, which is an organic compound formed after the hydrogen of benzene is replaced by an aldehyde group. Benzaldehyde is the simplest and most commonly used aromatic aldehyde in industry. It is a colorless liquid at room temperature with a characteristic almond smell and was once called bitter almond oil. Benzaldehyde is widely found in the plant kingdom, especially in Rosaceae plants, such as amygdalin in bitter almonds. Benzaldehyde occurs naturally in essential oils such as bitter almond oil, ageratum oil, hyacinth oil, and ylang ylang oil. Benzaldehyde is also an important raw material for medicine, dyes, spices and resin industries. It is mainly used in the manufacture of lauric aldehyde, lauric acid, magenta, etc. I...

Claims

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