A kind of production process of n-butane oxidation to maleic anhydride

Abstract

The invention discloses a process for preparing maleic anhydride by oxidation of n-butane, which belongs to the field of maleic anhydride production. The invention obtains a production process for producing maleic anhydride by n-butane oxidation at a lower operating pressure by improving the production process for producing maleic anhydride by the original benzene oxidation method. In particular, the process uses a self-made catalyst, so that the reaction has better selectivity and yield under low pressure conditions, and at the same time, it not only revitalizes the existing process but also saves costs.

Description

A kind of production process of n-butane oxidation to maleic anhydride technical field The present invention relates to the production field of maleic anhydride, more specifically, relate to a kind of use n-butane under lower operating pressure The production process of alkoxylation to produce maleic anhydride. Background technique Maleic anhydride is called maleic anhydride for short, has another name called maleic anhydride, is a kind of important organic chemical raw material, is second only to benzene Anhydride and acetic anhydride, the world's third largest organic acid anhydride, is widely used in petrochemical, food processing, medicine, building materials and other industries. due to the The raw materials are cheap, the pollution is relatively light, the carbon atom utilization rate is high and the production cost of maleic anhydride is low. Technology has gradually become the main route of maleic anhydride production, and there is a tendency to gradually re...

AI Technical Summary

Problems solved by technology

Due to the restriction of catalyst operating conditions, the existing vanadium phosphorus oxygen catalyst cannot run stably on the production device of maleic anhydride by benzene oxidation

Therefore, the original maleic anhydride plant by benzene oxidation method is usually scrapped

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