DMC基聚醚多元醇的精制
杨柳;马卫华;许健;戚莉;钟秦
【期刊名称】《功能材料》
【年(卷),期】2011(042)0z4
【摘要】以N-330 DMC基聚醚多元醇为原料,采用吸附法,对聚醚多元醇中锌、钴离子的脱除精制工艺进行了研究.实验确定了较佳的吸附剂种类及用量,并对吸附剂螯合纤维的最佳吸附条件和重复使用情况进行了研究.结果表明,最佳吸附剂条件为螯合纤维用量是聚醚多元醇质量的3.33％,吸附温度为60℃,吸附时间为40min,此时对锌、钴离子的脱除率最高,分别为77.1％和40.5％.螯合纤维重复使用了4次,对锌、钴离子的脱除率仍为74.1％和26.4％.%The process of purification of polyether polyols of N-330 made with double metal cyanide catalysts was studied by adsorption, in which zinc ions and cobalt ions were removed from the polyether polyols. The optimum sort and amount of adsorbents were established; the optimum adsorption conditions of chelating fiber adsorbent and the reusing tests were studied. The results showed that the optimal conditions were obtained as: the amount of chelating fiber added is 3. 33 parts by weight per 100 parts by weight of the polyether polyols treated and the polyether polyols were adsorbed for 40 min at 60 ℃ , in which conditons the removal rate of zinc and cobalt ions were the highest, 77. 1% and 40. 5%, respectively. The chelating fiber was reused 4 times, and the removal rate of zinc and cobalt ions were still 74. 1% and 26. 4%.