摘要
对丙烯氧化制备丙烯酸催化剂生产工艺过程进行了研究,包括催化剂制备过程中的反应过程、喷雾干燥及成型等环节。在反应阶段,严格控制钼酸铵、偏钒酸铵、仲钨酸铵三者的反应时间对保证催化剂的制备重复性至关重要,最佳反应时间为1.5h;喷雾干燥最佳工艺参数为进风温度180～190℃、进料电机频率10Hz、雾化电机频率49Hz;模压成型最佳工艺参数为模具转速22r?min、水胶体积比1.5。
The production process of catalyst for propylene oxidation to produce acrylic acid was studied in detail including the reaction process, spray drying and compression molding. Test results show that during the reaction stage, proper controlling the reaction time of ammonium molybdate, am- monium metavanadate and ammonium paratungstate is the key factor to ensure good repeatability of cat- alyst preparation and the optimum reaction time is 1.5 h. The optimum process parameters of spray dr ying are an inlet air temperature of 180--190 ℃, motor frequency for material feeding of 10 Hz and mo- tor frequency for spray of 49 Hz. And the optimum process parameters of compression molding are wa- ter/silica sol volume ratio of 1.5 and mould rotational speed of 22 r/min.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2012年第11期51-54,共4页
Petroleum Processing and Petrochemicals
基金
中石油炼化板块资助项目(0904A14-10)
关键词
丙烯酸催化剂丙烯喷雾干燥模压成型
acrylic acid catalyst
propylene
spray drying
compression molding
