摘要:
The present invention relates to a method for preparing a catalyst which is used in a process of producing acrolein and acrylic acid by the reaction of oxygen-containing gas and propylene. According to the present invention, a sublimable material, such as urea (NH2CONH2), melamine (C3H6N6), ammonium oxalate (C2H8N2O4), methyl oxalate (C4H6O4) or naphthalene (C10H8), is added as a catalyst additive in the preparation of the catalyst. Using the catalyst prepared by the present invention, acrolein and acrylic can be produced at high yield.
摘要翻译:本发明涉及一种制备催化剂的方法,该催化剂用于通过含氧气体和丙烯的反应生产丙烯醛和丙烯酸的方法。 根据本发明,可升华的材料,例如脲(NH 2 CONH 2 H 2),三聚氰胺(C 3 H 6) 草酸铵(C 2 H 2 N 2 N 2 O 4) 草酸甲酯(C 4 H 6 O 4 O 4)或萘(C 10 H 2 O) 作为催化剂添加剂加入催化剂的制备中。 使用本发明制备的催化剂可以高产率生产丙烯醛和丙烯酸。
摘要:
The present invention provides a method for producing a catalyst comprising an inert carrier an a mixed metal oxide as a catalytically active component supported on the inert carrier, the method comprising the steps of: a) adding organic acid(s) into solvent(s) and salt of each metal component which will form a mixed metal oxide, to prepare a catalyst precursor solution for the mixed metal oxide; b) adjusting pH of the catalyst precursor solution using a basic solution; c) containing the catalyst precursor solution for the mixed metal oxide, of which the pH is adjusted, on the inert carrier, d) removing the solvent(s); and e) calcining the resultant from step d. The catalyst produced by the present method has improved reproducibility, activity and yield, while maintaining a high selectivity.