广州化工
廣州化工
엄주화공
Guangzhou Chemical Industry
2015年
17期
101-102
,共2页
异辛醇%氧化%焙烧温度
異辛醇%氧化%焙燒溫度
이신순%양화%배소온도
2-ethylhexanol%oxidation%calcination temperature
研究了以氧气为氧化剂时ZnFe2 O4催化剂的焙烧温度对异辛醇催化合成异辛酸性能的影响。使用XRD, BET对催化剂表征的数据显示：随着焙烧温度的升高,催化剂比表面积下降,晶粒直径增大,催化活性和尖晶石结构的形成密切相关。焙烧温度在700℃时催化剂具有最佳催化活性,异辛醇转化率和异辛酸收率分别为39.6%和18.5%,焙烧温度进一步升高会使催化剂烧结,导致催化活性下降。
研究瞭以氧氣為氧化劑時ZnFe2 O4催化劑的焙燒溫度對異辛醇催化閤成異辛痠性能的影響。使用XRD, BET對催化劑錶徵的數據顯示：隨著焙燒溫度的升高,催化劑比錶麵積下降,晶粒直徑增大,催化活性和尖晶石結構的形成密切相關。焙燒溫度在700℃時催化劑具有最佳催化活性,異辛醇轉化率和異辛痠收率分彆為39.6%和18.5%,焙燒溫度進一步升高會使催化劑燒結,導緻催化活性下降。
연구료이양기위양화제시ZnFe2 O4최화제적배소온도대이신순최화합성이신산성능적영향。사용XRD, BET대최화제표정적수거현시：수착배소온도적승고,최화제비표면적하강,정립직경증대,최화활성화첨정석결구적형성밀절상관。배소온도재700℃시최화제구유최가최화활성,이신순전화솔화이신산수솔분별위39.6%화18.5%,배소온도진일보승고회사최화제소결,도치최화활성하강。
The influence of calcined temperature on the ZnFe2 O4 catalyst properties was investigated. The prepared catalysts were characterized by BET and XRD. The result showed that as the temperature increased, the catalyst particle size and surface area increased. The catalytic activity was closely related to the formation of the spinel. Sintering phenomenon was found when the calcined temperature exceeded 800 ℃ which decreased the dispersion and activity of the catalysts.
