順酐，又稱順丁烯二酸酐，馬來酸酐，2,5-呋喃二酮等。斜方晶系無色針狀或片狀晶體。有強烈刺激氣味，溶于乙醇、乙醚和丙酮，難溶于石油醚和四氯化碳。與熱水作用而成馬來酸。
Maleic anhydride, also known as Maleic anhydride, maleic anhydride, 2,5-furandione, etc. The rhombic crystal system is a colorless needle shaped or sheet shaped crystal. It has a strong pungent smell and is soluble in ethanol, ether and acetone, but insoluble in Petroleum ether and carbon tetrachloride. It reacts with hot water to form Maleic acid.
主要用于生產不飽和聚酯樹脂、醇酸樹脂、農藥馬拉硫磷、低毒農藥4049、長效碘胺的原料。也是涂料、馬來松香、聚馬來酐、順酐-苯乙烯共聚物的共聚單體，也是生產油墨助劑、造紙助劑、增塑劑、酒石酸、富馬酸、四氫呋喃等的有機化工原料。
It is mainly used as raw material for producing unsaturated polyester resin, alkyd resin, pesticide Malathion, efficient and low toxic pesticide 4049, and long-acting iodamine. It is also a comonomer of coatings, maleic rosin, polymaleic anhydride, maleic anhydride styrene copolymer, and an organic chemical raw material for the production of ink additives, papermaking additives, plasticizers, Tartaric acid, fumaric acid, tetrahydrofuran, etc.
供應成本方面
In terms of supply costs
順酐生產廠家發現近兩年以來，順酐市場產能增速較快，相結合擬在建項目眾多，主要是正丁烷法，苯氧化法順酐裝置成本較高，原料純苯供應量減少且價格長期處于高位，同時面臨環保壓力問題，苯法順酐工廠多數停產。
Maleic anhydride manufacturers have found that in the past two years, the production capacity of the maleic anhydride market has grown rapidly, and there are many integrated projects under construction, mainly the n-butane method. The cost of the benzene oxidation method maleic anhydride device is relatively high, the supply of raw material pure benzene has decreased, and the price has been at a high level for a long time. At the same time, facing environmental pressure, most of the benzene method maleic anhydride factories have ceased production.
出口領域
Export sector
2021-2022年順酐出口市場迎來爆發式增長期，2021年出口量同比增長120.9%，順酐出口量占其年產量比例可達15%，出口量的增長，對其產品價格形成重要支撐。
The export market of maleic anhydride experienced an explosive growth period from 2021 to 2022, with a year-on-year increase of 120.9% in export volume. The proportion of maleic anhydride exports to its annual production can reach 15%, and the growth of export volume provides important support for its product prices.
國家政策扶持
National policy support
精細化工行業的發展需要基礎化工行業的支持，我國已建立起較為完整的石化工業體系，一些重要化工原料具備較大的生產能力和產量基數，我國精細化工生產企業在競爭中具備一定的比較優勢。
The development of the fine chemical industry requires the support of the basic chemical industry. China has established a relatively complete petrochemical industry system, and some important chemical raw materials have a large production capacity and output base. China's fine chemical production enterprises have a certain comparative advantage in international competition.
下游需求
Downstream demand
順酐主要消費領域為不飽和聚酯樹脂，近年產能增速穩定，但受疫情及經濟因素影響，2022年對順酐的支撐作用減弱。
The main consumer area of maleic anhydride is unsaturated polyester resin. In recent years, the production capacity growth rate has been stable, but due to the impact of the epidemic and economic factors, the support for maleic anhydride will weaken in 2022.
但順酐也有一些新興的應用領域，例如BDO、丁二酸及順酐酸酐生物。順酐及酸酐衍生物行業符合我國的產業政策，產品下游應用行業多屬于國家鼓勵發展行業，產品生產和使用過程中對環境影響較小，綠色環保的產品特征使其擁有廣闊的發展前景，獲得了相關行業政策的支持。
But there are also some emerging applications for maleic anhydride, such as BDO, succinic acid, and maleic anhydride biology. The maleic anhydride and anhydride derivative industries comply with China's industrial policies, and the downstream application industries of products are mostly encouraged by the state for development. The production and use of products have little impact on the environment, and the green and environmentally friendly product characteristics make them have broad development prospects, which have been supported by relevant industrial policies.
全球對環保的關注度亦持續提升，限塑令出臺，可降解塑料規模擴大顯著，帶動原料丁二酸及其原料順酐的需求持續提升，導致順酐價格曾有過高位情況出現。
The global attention to environmental protection has also continued to increase, with the introduction of plastic restriction orders and a significant expansion of the scale of degradable plastics, driving the continuous increase in demand for raw materials such as succinic acid and maleic anhydride, which has led to high prices for maleic anhydride.
在禁塑令的推動下，可降解塑料在未來將會逐步替代傳 統塑料，PLA/PBAT/PBS 都是可降解塑料材料，其中 PBS 所需要原料 BDO 和丁二酸 都可以通過順酐生產，同時 BDO 也是 PBAT 的重要原料之一，順酐法工藝也更為環保，由此順酐存在一定潛在需求。更多相關內容就來我們網站
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Under the promotion of the ban on plastic production, degradable plastics will gradually replace traditional plastics in the future. PLA/PBAT/PBS are all degradable plastic materials, and the raw materials required for PBS, BDO and succinic acid, can be produced through maleic anhydride. BDO is also an important raw material for PBAT, and the maleic anhydride process is also more environmentally friendly. Therefore, there is a certain potential demand for maleic anhydride. For more related content, come to our website http://www.724ad.com Consult!
