초록 ▼

The present invention relates to a method for preparing a catalyst for partial oxidation of acrolein, particularly to a method for preparing a catalyst for partial oxidation of acrolein that has a superior acrolein conversion rate, acrylic acid activity, selectivity, and yield, by introducing a base

The present invention relates to a method for preparing a catalyst for partial oxidation of acrolein, particularly to a method for preparing a catalyst for partial oxidation of acrolein that has a superior acrolein conversion rate, acrylic acid activity, selectivity, and yield, by introducing a base solution and an acid solution into a catalyst suspension prepared by dissolving salts of metal ingredients of the catalyst in water to control the acidity of the catalyst suspension, contacting the catalyst suspension of which acidity is controlled with an inert support to support the catalyst thereon, and then drying and firing the supported catalyst.

대표청구항 ▼

What is claimed is: 1. A method for preparing a catalyst for partial oxidation of acrolein, represented by the following Chemical Formula 1 and having a BET surface area of 4 to 15 m2/g, comprising the steps of: a) dissolving the following metal salts: i) a molybdenum salt, ii) a tungsten salt, iii

What is claimed is: 1. A method for preparing a catalyst for partial oxidation of acrolein, represented by the following Chemical Formula 1 and having a BET surface area of 4 to 15 m2/g, comprising the steps of: a) dissolving the following metal salts: i) a molybdenum salt, ii) a tungsten salt, iii) a vanadium salt, iv) a salt of a metal selected from the group consisting of iron, copper, bismuth, chromium, tin, antimony, and potassium, and v) a salt of an alkaline earth metal in water to prepare a catalyst suspension; b) introducing a base solution and an acid solution into the a) catalyst suspension to control acidity of the catalyst suspension to a pH of 3.5 to 6.5, wherein the acid solution is an organic acid solution having 1 to 10 carbon atoms; c) contacting the b) catalyst suspension of which acidity is controlled with an inert support to support the catalyst thereon; and d) drying and firing the c) supported catalyst: description="In-line Formulae" end="lead"MOaWbVcAdBeOx [Chemical Formula 1]description="In-line Formulae" end="tail" wherein Mo is molybdenum, W is tungsten, V is vanadium; A is iron, copper, bismuth, chromium, tin, antimony, or potassium; B is an alkaline earth metal; and a, b, c, d, and e respectively represent the atomic ratio of each metal, and when a is 12, b is 1-5, c is 1-6, d is 1-5, and e is 02/g, prepared by introducing an acid solution and a base solution into a catalyst suspension prepared by dissolving the following metal salts i) a molybdenum salt, ii) a tungsten salt, iii) a vanadium salt, iv) a salt of a metal selected from the group consisting of iron, copper, bismuth, chromium, tin, antimony, and potassium, and v) a salt of an alkaline earth metal to control the acidity of the catalyst suspension to a pH of 3.5 to 6.5, the acid solution being an organic acid solution having 1 to 10 carbon atoms, contacting the catalyst suspension of which acidity is controlled with an inert support to support the catalyst thereon, and then drying and firing the supported catalyst: description="In-line Formulae" end="lead"MOaWbVcAdBeOx [Chemical Formula 1]description="In-line Formulae" end="tail" wherein Mo is molybdenum, W is tungsten, V is vanadium; A is iron, copper, bismuth, chromium, tin, antimony, or potassium; B is an alkaline earth metal; and a, b, c, d, and e respectively represent the atomic ratio of each metal, and when a is 12, b is 1-5, c is 1-6, d is 1-5, and e is 0