商品化的新型高活性PET催化剂

Ａｋｚｏ Ｎｏｂｅｌ，即现在的Ａｃｏｒｄｉｓ开发出一种用于聚酯缩聚的新型高活性催倾剂，这种催化剂命名为Ｃ－９４。该催化剂是一种基于耐水解的钛／硅氧化物，其活性比锑基催化剂高６倍￣８倍，适用于所有的常规生产ＰＥＴ的合成路线；以ＤＭＴ或ＰＴＡ为原料的连续和间歇生产模式。评价了用于生产纤维级和瓶级的ＰＥＴ切片，而且中试表明Ｃ－９４同样适用其他聚酯产品如ＰＴＴ和ＰＢＴ，基于其广泛的应用前景，Ａｃｏｒｄｉｓ

New, Highly Active PET Catalyst Commercially Available on Production Scale

AkZo Nobel, now Acordis, has developed a new, highly active catalyst for the polycondensation of polyester. This catalyst, which is called C-94, is based on hydrolytically stable titanium/silicon mixed oxides and has proven to be 6 - 8 times as active as antimony based catalysts in production trials. The catalyst is suited for all common routes of PET production: DMT as well as PTA based processes in batch and continuous modes. PET for fibers and for bottle chips application was evaluated. Furthermore, the catalyst has shown its suitability in pilot plant trials also for other polyesters such as PTT and PBT. Based on these promising results Acordis has started the production of the catalyst.