当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2015年
5期
889-891,895
,共4页
石蜡%氧化反应%Co-Zr/MCM-41%酯
石蠟%氧化反應%Co-Zr/MCM-41%酯
석사%양화반응%Co-Zr/MCM-41%지
Paraffin wax%Oxidation reaction%Co- Zr/ MCM-41%Ester
从催化氧化石蜡生产特种蜡及其添加剂的角度出发,采用 Co/SiO2、Co/MCM-41、Zr /MCM-41、Co-Zr/MCM-41为催化剂,用空气作氧化剂,对石蜡氧化进行了实验研究。考察了金属负载量对催化性能的影响、不同负载金属催化剂的石蜡氧化活性比较、Co、Zr 含量对 Co-Zr/ MCM-41活性的影响。实验结果表明,以 MCM-41作为载体制备钴负载量为12%、锆负载量为3%的复合氧化物为催化氧化反应的催化剂,在氧化温度为140℃、氧化时间为5 h、空气流量为0.7 L/min、催化剂用量为2%的最经济反应条件下可得到高酯酸比的氧化蜡产品。
從催化氧化石蠟生產特種蠟及其添加劑的角度齣髮,採用 Co/SiO2、Co/MCM-41、Zr /MCM-41、Co-Zr/MCM-41為催化劑,用空氣作氧化劑,對石蠟氧化進行瞭實驗研究。攷察瞭金屬負載量對催化性能的影響、不同負載金屬催化劑的石蠟氧化活性比較、Co、Zr 含量對 Co-Zr/ MCM-41活性的影響。實驗結果錶明,以 MCM-41作為載體製備鈷負載量為12%、鋯負載量為3%的複閤氧化物為催化氧化反應的催化劑,在氧化溫度為140℃、氧化時間為5 h、空氣流量為0.7 L/min、催化劑用量為2%的最經濟反應條件下可得到高酯痠比的氧化蠟產品。
종최화양화석사생산특충사급기첨가제적각도출발,채용 Co/SiO2、Co/MCM-41、Zr /MCM-41、Co-Zr/MCM-41위최화제,용공기작양화제,대석사양화진행료실험연구。고찰료금속부재량대최화성능적영향、불동부재금속최화제적석사양화활성비교、Co、Zr 함량대 Co-Zr/ MCM-41활성적영향。실험결과표명,이 MCM-41작위재체제비고부재량위12%、고부재량위3%적복합양화물위최화양화반응적최화제,재양화온도위140℃、양화시간위5 h、공기류량위0.7 L/min、최화제용량위2%적최경제반응조건하가득도고지산비적양화사산품。
In order to produce special wax and its additives by the catalytic oxidation process, paraffin wax oxidation reaction was researched systematically by using Co/SiO2, Co/MCM-41, Zr/MCM-41 or Co-Zr/MCM-41 as catalyst and air as oxidant. Effects of metal loading amount on its catalytic performance were investigated as well as the performance of catalyst with different metal for catalytic oxidation of paraffin. Effects of Co and Zr contents on Co-Zr/MCM-41 activity were analyzed. The results show that, using Co-Zr/MCM-41 (12% Co, 3% Zr) as catalyst, under the conditions of the oxidation temperature 140℃, oxidation time 5h, air flow rate 0.7 L/min and catalyst 2%, oxidized wax with high ester/acid ratio can be obtained.