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:
Disclosed are a Mo—Bi—Nb—Te based composite metal oxide; and a process for producing (meth)acrylic acid from at least one reaction material selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, wherein the Mo—Bi—Nb—Te based composite metal oxide is used as a catalyst. Also, disclosed is a process for producing (meth)acrylic acid comprising a first step of producing (meth)acrolein as a main product from at least one reaction material selected from the group consisting of propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether, and a second step of producing (meth)acrylic acid from the (meth)acrolein, wherein yield of (meth)acrylic acid in the product of the first step is 20 mole % or higher.