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发明公开
CN109897171A 一种生态高效复配缩聚催化剂制备聚酯的方法 无效 - 驳回

一种生态高效复配缩聚催化剂制备聚酯的方法
摘要：
本发明涉及聚酯缩聚技术领域，尤其是一种生态高效复配缩聚催化剂制备聚酯的方法，具体步骤如下：（1）乙二醇钛溶液的制备；（2）PET低聚物的制备；（3）PET聚酯熔体的制备；本发明所得到的一种生态高效复配缩聚催化剂制备聚酯的方法，以乙二醇锑和主要成分为乙二醇钛的溶液复配使用，按比例复配添加用作聚酯制备过程中的缩聚催化剂，可通过催化剂组分配比的变化，调控复配催化剂的活性，使复配催化剂中重金属的含量达到环保的要求，以解决现有锑系催化剂本身重金属超标，对环境、人体有危害和钛系催化剂使PET产品色相发黄的不足。
摘要（英）：

The invention relates to the technical field of polyester polycondensation, in particular to a method for preparing polyester by an ecological and efficient compound polycondensation catalyst. The method includes steps: (1) glycol titanium solution preparation; (2) PET oligomer preparation; (3) PET polyester melt preparation. According to the method for preparing polyester by the ecological and efficient compound polycondensation catalyst, ethylene glycol antimony and solution with glycol titanium as a main component are compounded in use and proportionally compounded and added as the polycondensation catalyst in a polyester preparation process, activity of the compound catalyst can be regulated through ratio changes of catalyst components, and the content of heavy metals in the compound catalyst reaches the requirement on environmental friendliness, so that defects that existing antimony catalysts intrinsically exceed standards of heavy metals and are harmful to the environment and human bodies and titanium catalysts make yellowing of PET products are overcome.

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