CAJ | 학술논문

采用中性模板法于室温下合成了含铜的分子筛Cu-HMS,并以该分子筛为多相催化剂,对温和条件下异丙苯的氧化进行了研究.结果表明,以硝酸铜为铜源的Cu-HMS-3催化剂具有很高的催化活性,异丙苯转化率和过氧化氢异丙苯选择性都很高,分别达39.6%和98.5%.催化剂可以回收使用.另外,以Cu-HMS-3为催化剂对甲苯和乙苯的氧化进行了研究,发现在本实验条件下,甲苯未发生反应,3种芳烃的活性顺序为甲苯乙苯<异丙苯.
채용중성모판법우실온하합성료함동적분자사Cu-HMS,병이해분자사위다상최화제,대온화조건하이병분적양화진행료연구.결과표명,이초산동위동원적Cu-HMS-3최화제구유흔고적최화활성,이병분전화솔화과양화경이병분선택성도흔고,분별체39.6%화98.5%.최화제가이회수사용.령외,이Cu-HMS-3위최화제대갑분화을분적양화진행료연구,발현재본실험조건하,갑분미발생반응,3충방경적활성순서위갑분을분<이병분.
A copper-containing molecular sieve Cu-HMS was synthesized using the neutral templating pathway at room temperature. Then the product was used as heterogeneous catalyst for the oxidation of cumene under mild conditions. The results show that Cu-HMS-3 with copper nitrate as copper source has excellent catalytic activity, high cumene conversion and cumene hydroperoxide selectivity, that is, 39.6% and 98.5%. The catalyst can be recycled. Furthermore, the oxidations of toluene and ethylbenzene were investigated with Cu-HMS-3 as catalyst. It is found that there is no oxidation reaction observed for toluene. The activities of the three aromatic hydrocarbons follow the order of tolueneethylbenzene<cumene.