1.用作生產1,4-丁二醇、四氫呋喃、琥珀酸、不飽和聚酯樹脂、醇酸樹脂等的原料，也用于醫藥和農藥。
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、金屬選礦中充當捕收劑。
2. Act as a collector in metal beneficiation.
3、用于合成，也用作合成纖維中間體。
3. Used for synthesis and also as an intermediate for synthetic fibers.
4、順酐是一種重要的不飽和有酸酐的酐基本原料，在農藥生產上用于合成磷殺蟲藥的中間體順丁烯二酸二乙酯、噠嗪硫磷的中間體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-
3，6-二羥基噠嗪，以及擬除蟲菊酯殺蟲藥胺菊酯、克菌丹的中間體。此外，還用于生產不飽和聚酯樹脂、油墨助劑、造紙助劑、涂料以及醫藥工業、食品工業等。
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、主要用于生產不飽和聚酯樹脂、醇酸樹脂、長效碘胺的原料。也是涂料、馬來松香、聚馬來酐、順酐-苯乙烯共聚物。也是生產油墨助劑、造紙助劑、增塑劑和酒石酸、富馬酸、四氫呋喃等的化工原料。
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、順酐是一種常用的重要基本化工原料。其下游產品有著相當廣泛的開發和應用前景。主要用于合成不飽和聚酯樹酯，它是制造汽車部件、船舶、耐腐蝕性化工設備和日用品的原料。順酐也是生產潤滑油的添加劑、涂料、農藥、富馬酸、共聚物、食品添加劑等重要中間體。
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.
