1.用作生产1,4-丁二醇、四氢呋喃、琥珀酸、不饱和聚酯树脂、醇酸树脂等的原料，也用于医药和农药。
1. Used as raw materials for the production of 1,4-butanediol, tetrahydrofuran, succinic acid, unsaturated polyester resin, alkyd resin, etc., as well as in pharmaceuticals and pesticides.
2、金属选矿中充当捕收剂。
2. Act as a collector in metal beneficiation.
3、用于合成，也用作合成纤维中间体。
3. Used for synthesis and also as an intermediate for synthetic fibers.
4、顺酐是一种重要的不饱和有酸酐的酐基本原料，在农药生产上用于合成磷杀虫药的中间体顺丁烯二酸二乙酯、哒嗪硫磷的中间体1-苯基-
4. Maleic anhydride is an important unsaturated anhydride basic raw material used in the synthesis of phosphorus insecticides in pesticide production, including diethyl maleate and 1-phenyl pyridazinon-
3，6-二羟基哒嗪，以及拟除虫菊酯杀虫药胺菊酯、克菌丹的中间体。此外，还用于生产不饱和聚酯树脂、油墨助剂、造纸助剂、涂料以及医药工业、食品工业等。
3,6-dihydroxypyridazine, as well as intermediates of pyrethroid insecticides such as fenpropathrin and chloramphenicol. In addition, it is also used in the production of unsaturated polyester resin, ink additives, paper additives, coatings, as well as the pharmaceutical and food industries.
5、主要用于生产不饱和聚酯树脂、醇酸树脂、长效碘胺的原料。也是涂料、马来松香、聚马来酐、顺酐-苯乙烯共聚物。也是生产油墨助剂、造纸助剂、增塑剂和酒石酸、富马酸、四氢呋喃等的化工原料。
5. Mainly used as raw materials for the production of unsaturated polyester resin, alkyd resin, and long-acting iodine amine. It is also a coating, maleic rosin, polymaleic anhydride, and maleic anhydride styrene copolymer. It is also a chemical raw material for producing ink additives, papermaking additives, plasticizers, and tartaric acid, fumaric acid, tetrahydrofuran, etc.
6、顺酐是一种常用的重要基本化工原料。其下游产品有着相当广泛的开发和应用前景。主要用于合成不饱和聚酯树酯，它是制造汽车部件、船舶、耐腐蚀性化工设备和日用品的原料。顺酐也是生产润滑油的添加剂、涂料、农药、富马酸、共聚物、食品添加剂等重要中间体。
6. Maleic anhydride is a commonly used and important basic chemical raw material. Its downstream products have a wide range of development and application prospects. Mainly used for synthesizing unsaturated polyester resin, it is a raw material for manufacturing automotive components, ships, corrosion-resistant chemical equipment, and daily necessities. Maleic anhydride is also an important intermediate in the production of lubricants, coatings, pesticides, fumaric acid, copolymers, food additives, and other additives.
