目前苯酐市场十分活跃，产品供不应求，供需矛盾紧张。我国苯酐需求构成大致如下：增塑剂生产需用16万t，醇酸树脂类涂料需用7万t，不饱和树脂染料行业，糖精纳、医药、农药等需用4．5万t，总计需求约275万t。在生产能力方面，大约维持在24万t左右，市场缺口需进口补充。在苯酐 Currently phthalic anhydride market is very active, product demand, tension between supply and demand tension. The demand for phthalic anhydride in our country is roughly as follows: 160,000t for plasticizer production, 70,000t for alkyd resin coating, 45,000t for unsaturated resin dye industry, saccharinum, medicine and pesticide The demand is about 2.75 million tons. In terms of production capacity, it will be maintained at around 240,000 t and the market gap needs to be supplemented by imports. In phthalic anhydride