化工时刊
化工時刊
화공시간
CHEMICAL INDUSTRY TIMES
2014年
4期
19-23
,共5页
相转移催化剂%环氧化%优化实验
相轉移催化劑%環氧化%優化實驗
상전이최화제%배양화%우화실험
phase transfer catalyst%epoxidation%optimization experiments
针对现有固载型相转移催化剂制备过程中存在的问题，对环己烯合成环氧环己烷工艺进行了改进。在固载型过氧化磷钨杂多酸季铵盐PSC的制备中，对质子酸N的选用和磷酸的加入方式以及原料配比等问题进行了重新优化，并对优化工艺后制备的催化剂结构进行表征和性能实验。结果表明，改进后的催化剂制备工艺，不仅提高了原料钨酸的利用率，简化了操作，降低了成本，而且所制备的催化剂使用多次后仍能保持较高的催化活性及稳定性。
針對現有固載型相轉移催化劑製備過程中存在的問題，對環己烯閤成環氧環己烷工藝進行瞭改進。在固載型過氧化燐鎢雜多痠季銨鹽PSC的製備中，對質子痠N的選用和燐痠的加入方式以及原料配比等問題進行瞭重新優化，併對優化工藝後製備的催化劑結構進行錶徵和性能實驗。結果錶明，改進後的催化劑製備工藝，不僅提高瞭原料鎢痠的利用率，簡化瞭操作，降低瞭成本，而且所製備的催化劑使用多次後仍能保持較高的催化活性及穩定性。
침대현유고재형상전이최화제제비과정중존재적문제，대배기희합성배양배기완공예진행료개진。재고재형과양화린오잡다산계안염PSC적제비중，대질자산N적선용화린산적가입방식이급원료배비등문제진행료중신우화，병대우화공예후제비적최화제결구진행표정화성능실험。결과표명，개진후적최화제제비공예，불부제고료원료오산적이용솔，간화료조작，강저료성본，이차소제비적최화제사용다차후잉능보지교고적최화활성급은정성。
We improved the process of synthesizing epoxycyclohexane from Cyclo-hexene, aiming the existing problems in the preparation of the immobilized type phase transfer catalyst. In the preparation of immobilized type quaternary ammonium peroxotungsto phosphate PSC, we re-optimized many problems such as the selection of the proton acid N, adding issues of the phosphoric and the ratio of raw materials, and carried out the structure character-ization and performance test of the catalyst prepared after the optimization of the process. The results show that the im-proved catalyst preparation process, not only improved the utilization of raw materials tungstate, simplified the opera-tions, reduced the costs, but also kept the prepared catalyst maintain high catalytic activity and stability after repeated use.
