Maleic anhydride (MA) is the abbreviation of maleic anhydride, also known as maleic anhydride or dehydrated malic anhydride; English Name: matericanhydride; molecular formula: c4h203; molecular weight: 98.058; molecular weight: 98.058;

顺酐是一种常用的重要基本有机化工原料,是世界上仅次于醋酐和苯酐的第三大酸酐原料。

Maleic anhydride is an important basic organic chemical raw material, which is the third largest anhydride raw material in the world after acetic anhydride and phthalic anhydride.

顺酐主要用于生产不饱和聚酯树脂(UPR)、醇酸树脂。此外，以顺酐为原料还可以生产1，4-丁二醇(BOD)、γ-丁内酯(GBL)、四氢呋喃(THF)、马来酸、富马酸和四氢酸酐等一系列用途广泛的精细化工产品，在农药、医药、涂料、油墨、润滑油添加剂、造纸化学品、纺织品整理剂、食品添加剂以及表面活性剂等领域具有广泛的应用。

Maleic anhydride is mainly used to produce unsaturated polyester resin (UPR) and alkyd resin. In addition, maleic anhydride can also be used as raw material to produce a series of fine chemical products, such as 1,4-butanediol (BOD), γ - butyrolactone (GBL), tetrahydrofuran (THF), maleic acid, fumaric acid and tetrahydroanhydride. It has a wide range of applications in the fields of pesticides, medicine, coatings, ink, lubricant additives, paper chemicals, textile finishing agents, food additives and surfactants Application.

上工业化生产顺酐的工艺路线主要为正丁烷法氧化法，其次为苯氧化法，我国主要采用苯氧化法。

In the world, n-butane oxidation is the main process for the industrial production of maleic anhydride, followed by benzene oxidation. In China, benzene oxidation is the main process.

近年来，我国顺酐的表观消费量不断增加。无论是我国顺酐的生产技术，还是生产能力都得到了很大的发展，但是与国外^相比还存在一些问题。

In recent years, the apparent consumption of maleic anhydride in China is increasing. Both the production technology and production capacity of maleic anhydride in China have been greatly developed, but there are still some problems compared with foreign countries.