顺酐在纯态下是无色或白色固体，有一种难闻的气味。它还具有两类化学能群，这使得它在化学合成和其他应用中非常有用。
Maleic anhydride is colorless or white solid in pure state, with an unpleasant smell. It also has two types of chemical energy groups, which makes it very useful in chemical synthesis and other applications.
过去，工厂是通过苯或其他芳香族化合物的氧化来制备的。但随着部分材料上涨，工厂将使用正丁烷作为原料。苯和丁烷被送入热气流中，在高温下通过催化剂床层。然后，工作人员将对空气和碳氢化合物进行控制，从而降低混合物中发生火灾的可能性。其次，产品将通过出料口排出。
In the past, the factory was prepared by oxidation of benzene or other aromatic compounds. However, as the price of some materials rises, the factory will use n-butane as raw material. Benzene and butane are sent into the hot gas stream and pass through the catalyst bed at high temperature. Then, the staff will control the air and hydrocarbons to reduce the possibility of fire in the mixture. Secondly, the product will be discharged through the discharge port.
同时，它具有两类化学能群，因此在化学合成等应用中得到广泛的应用。此外，她还广泛应用于合成表面活性剂、杀虫剂、除草剂和剂。
At the same time, it has two kinds of chemical energy groups, so it has been widely used in chemical synthesis and other applications. In addition, it is widely used in the synthesis of surfactants, pesticides, herbicides and bactericides.

目前，工业上顺酐的工艺路线按原料可分为苯氧化法、正丁烷法氧化法、C4烯烃法和苯酐副产法4种。其中苯氧化法应用更加广泛，但由于苯资源有限，C4烯烃和正丁烷为原料顺酐的技术应运而生，尤其是富产天然气和油田伴生气的拥有大量的正丁烷资源，因此近年来正丁烷氧化法顺酐的技术发展迅速，已经在山东顺酐中占主要地位，其能力约占世界顺酐总能力的80%。
At present, the production process of maleic anhydride in industry can be divided into benzene oxidation process, n-butane oxidation process, C4 olefin process and phthalic anhydride by-product process according to raw materials. Among them, benzene oxidation method is more widely used. However, due to the limited benzene resources, the technology of producing maleic anhydride from C4 olefins and n-butane as raw materials arises at the historic moment. Especially, countries rich in natural gas and associated gas from oil fields have a large number of n-butane resources. Therefore, in recent years, the technology of producing maleic anhydride by n-butane oxidation method has developed rapidly, and has occupied a major position in the production of maleic anhydride in Shandong Province. Its production capacity accounts for about 80% of the total production capacity of maleic anhydride in the world.
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