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在过去的20年中,聚酯的制造和加工技术发展就像市场的发展一样有活力。使用传统的真空缩聚工艺聚酯的日产能力为800吨,已经达到现代技术的物理极限,固相聚合的生产能力已达到400—600吨/条线,也接近极限值。 杜邦公司的新NG3工艺技术,目前正在中试工厂中展示。这一生产制瓶的切片和普通造粒的新工艺,表现出提高产量的极大潜力。工艺中有些过程,如SSP的造粒仍将限制在目前的水平,如果要求达到日产1000吨则需要两条线平行生产。 在纤维生产方面,日产200吨的一条线将成为标准规模。在纺Poy丝时,使用添加剂(帝人,鲁奇吉马,In-
In the past 20 years, the development of polyester manufacturing and processing technology is as dynamic as the development of the market. With the traditional vacuum polycondensation process, the daily production capacity of polyester is 800 tons, which has reached the physical limit of modern technology. The production capacity of solid phase polymerization has reached 400-600 tons/line, which is also close to the limit. DuPont’s new NG3 process technology is currently being demonstrated in pilot plants. This new process of making sliced slices and ordinary pellets shows great potential for increased production. Some processes in the process, such as granulation of the SSP, will still be limited to the current level. If the requirement is to reach 1,000 tons per day, parallel production of two lines is required. In terms of fiber production, a 200-day-a-day line will become the standard size. When spinning Poy silk, use additives (Teijin, Ruggijima, In-