METHOD OF MAKING CATALYTICALLY ACTIVE GEOMETRIC MOULDED ARTICLES Russian patent published in 2013 - IPC B01J37/04 B01J37/08 B01J23/16 B01J23/28 B01J23/30 B01J23/745 B01J35/00 C07C57/05 C07C47/22 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of producing catalytic moulded articles and use thereof. Described is a method of making catalytically active geometric moulded articles K, which contain as active mass, a multi-element oxide I with general stoichiometric formula (I): [Bi_lW_bO_x]_a[Mo₁₂Z¹ _cZ² _dFe_eZ³ _fZ⁴ _gZ⁵ _hO_y]_l (I), in which Z¹ denotes an element or multiple elements selected from a group which includes nickel and cobalt, Z² denotes an element or multiple elements selected from a group which includes alkali metals, alkali-earth metals and thallium, Z³ denotes an element or multiple elements selected from a group which includes zinc, phosphorus, arsenic, boron, antimony, tin, cerium, vanadium, chromium and bismuth, Z denotes an element or multiple elements selected from a group which includes silicon, aluminium, titanium, tungsten and zirconium, Z⁵ denotes an element or multiple elements selected from a group which includes copper, silver, gold, yttrium, lanthanum and lanthanides, a is a number from 0.1 to 3, b is a number from 0.1 to 10, c is a number from 1 to 10, d is a number from 0.01 to 2, e is a number from 0.01 to 5, f is a number from 0 to 5, g is a number from 0 to 10, h is a number from 0 to 1, and x, y are respectively defined by valence and number of atoms other than oxygen in formula (I), wherein a fine mixed oxide Bi_lW_bO_x is formed in form of a starting mass A1, the particle diameter $$d_{50}^{A1}$$ of which satisfies the condition 1 mcm ≤ $$d_{50}^{A1}$$ ≤10 mcm; a homogeneous aqueous mixture M is formed in an aqueous medium using sources, other than oxygen, of elements of the component part T=[Mo₁₂Z^l _cZ² _dFe_eZ³ _fZ⁴ _gZ⁵ _hO_y]_l of the multi-element oxide I, wherein: each of the sources used when forming the aqueous mixture M passes through a dispersion degree Q, which corresponds to particle diameter $$d_{90}^Q$$ ≤ 5 mcm, and the aqueous mixture M contains molybdenum, Z¹, Z², iron, Z³, Z⁴ and Z⁵ in the stoichiometric formula (I*): Mo₁₂Z^l _cZ² _dFe_cZ³ _fZ⁴ ₉Z⁵ _h (I*); from the aqueous mixture M, by drying and controlling the dispersion degree, a fine starting mass A2 is formed, the particle diameter $$d_{90}^{A2}$$ of which satisfies the condition 200 mcm ≥ $$d_{90}^{A2}$$ ≥ 20 mcm; the starting mass A1 is mixed with starting mass A2 or the starting mass A1, starting mass A2 and a fine auxiliary moulding agent are mixed to obtain a fine starting mass A3, which contains elements of the multi-element oxide I other than oxygen that are introduced therein through starting mass A1 and A2, in stoichiometric formula (1**): [Bi_lW_b]_a[Mo₁₂Z^l _cZ² _dFe_eZ³ _fZ⁴ _gZ⁵ _h]_i (I**); geometric moulded articles V are formed from the fine starting mass A3, and the moulded articles V undergo heat treatment at high temperature to obtain catalytically active geometric moulded articles K, wherein the product $$F:{\left(d_{50}^{A1}\right)}^{0,7}\cdot {\left(d_{90}^{A2}\right)}^{1,5}\cdot \left(a^{-1}\right)$$ is ≥820.

EFFECT: described is a method for heterogeneously catalysed partial gas-phase oxidation of an alkane, alkanol, alkanal, alkene and/or alkenal containing 3-6 carbon atoms in a catalyst bed, wherein the catalyst bed contains catalytically active moulded articles made using said method.

15 cl, 8 dwg, 10 tbl, 2 ex