| 新型钛系催化剂在直接酯化工艺路线中应用探讨 |
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| 引用本文： | 魏高富.新型钛系催化剂在直接酯化工艺路线中应用探讨[J].合成技术及应用,1995,10(2):6-14. |
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| 作者姓名： | 魏高富 |
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| 作者单位： | 江苏仪征化纤股份有限公司研究院 |
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| 摘 要： | 选用特定的含钛化合物作为缩聚催化剂，以ＰＴＡ路线，在２Ｌ釜上进行ＰＥＴ的合成研究，并利用ＤＳＣ、ＴＧＡ、ＧＰＣ等手段对合成的ＰＥＴ进行性能研究．得到催化剂的用量为０．５～０．７／万，酯化时间为５０～５５ｍｉｎ、聚合时间为７０～８０ｍｉｎ．聚酯各项指标均在合格范围之内，与ＳｂＡｃ３催化体系比较．其用量为锑系的１／３，酯化时间缩短２０～３０ｍｉｎ，聚合时间缩短２５ｍｉｎ。
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| 关 键 词： | 钛系催化剂，聚酯，缩聚 |
TITANIUM COMPOUND CATALYST FORSYNTHESIZING PET IN PTA PROCESS |
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| Wei Gaofu.TITANIUM COMPOUND CATALYST FORSYNTHESIZING PET IN PTA PROCESS[J].Synthetic Technology and Application,1995,10(2):6-14. |
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| Authors: | Wei Gaofu |
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| Affiliation: | Research Institute of Yizheng Chemical Fibre Co.Ltd |
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| Abstract: | Synthesis of PETin PTA process was studied on 2L reactor,using special titanium compound as the polycondensation catalyst.The properties of PET were also studied by meansof DSC.TGA and GPC. The results showed that the catalyst amount is between 50 ～70ppm,esterification time 50～55min,polycondensation time 70～80min.Compared withSbAc3,Ticatalyst amount is one third of SbAc3,its esterification and polycondensation timereduced respeCtively 20～30 and 25min.The properties of PET are excellent. |
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| Keywords: | catalyst titanium compound polyester polycondensation |
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