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PET装置在线转产中过渡时间与过渡料的控制

China Synthetic Fiber Industry(2013)

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Abstract
推导了PET装置在线转产过渡时间及过渡料产量的计算公式,并应用于实际生产中,分析装置在线转产的影响因素。结果表明:大有光产品在线转产半消光产品,将合格半消光产品的二氧化钛(TiO2)低限边界浓度wTiO2由0.30%降为0.25%,转产时间缩短45%以上,半消光产品在线转产大有光产品,将合格大有光产品的TiO2高边界浓度wTiO2由0增加为0.005%,转产时间由30.37 h降至11.34 h。转产过程中反应器的液位、转产产能和添加剂的流量是影响转产过渡时间和过渡料产量的关键因素。
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Key words
polyethylene terephthalate,transition material,on-line production transformation,transition time
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