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純對苯二甲酸(pure terephthalic acid，簡稱：pta)是一種重要的化纖原料，在常溫下是白色粉狀晶體，無毒、易燃，若與空 … · 煤化工pta是指对二甲苯的下游产品精对苯二甲酸。 接下来将对煤化工pta进行详细介绍。 一、煤化工概述 煤 … 国内市场中，有75％的pta用于生产聚酯纤维；20％用于生产瓶级聚酯，主要应用于各种饮料尤其是 碳酸饮料 的包装；5％用 …