对丙烯氧化制备丙烯醛催化剂放大成型过程中催化剂颗粒强度低、抗磨损性能差的问题进行了研究。在优化的成型工艺条件下,生产的催化剂颗粒强度由20 N/cm提高至30 N/cm,磨损率由3%降低至1%,丙烯转化率≥98.0%,丙烯醛收率≥83%。丙烯醛催化剂成功应用于8万t/a丙烯酸生产装置,实现了对进口催化剂的替代,催化剂综合性能与进口催化剂相当。

The problems of low particle strength and poor wear resistance of catalyst during the amplification molding of catalyst for propylene to acrolein are studied in detail.The particle strength of the catalyst prepared under the optimized molding process conditions is improved to 30 N·cm^-1 from 20 N·cm^-1,wear resistance decreases from 3% to 1%,propylene conversion exceeds 98% and acrolein yield exceed 83%.The prepared catalyst is successfully applied in an 80 thousand tons per year acrylic acid production plant,realizing the substitution of imported catalysts.Application result shows that the catalyst shows an equivalent comprehensive performance to the imported catalyst.