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the catalyst was recovered by simple decantation of the solution mixture followed by washing with a solvent (5 10 ml) After being immersed in the solvent for 12 h and dried at 90 1C under vacuum for 12 h, the catalyst was reused. ÕâÊÇ¿´µ½CCÉÏһƪ´ß»¯¼Á»ØÊÕËùд£¬ÀûÓÃsimple decantation À´»ØÊÕ´ß»¯¼ÁÊÇʲô·½·¨£¿¸Ã·½·¨»áÓõ½Ê²Ã´ÒÇÆ÷ÄÇ£¿ Çë½Ì´òÉñÃÇ |
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