METHOD OF PRODUCING MIXED OXIDE CATALYST FOR MAKING ACRYLONITRILE OR METACRYLONITRILE (VERSIONS) Russian patent published in 2013 - IPC B01J37/08 B01J35/00 C07C253/00 

Abstract RU 2483800 C2

FIELD: process engineering.

SUBSTANCE: invention relates to catalyst of producing acrylonitrile or metacrylonitrile from propane or isobutane. Proposed mixed oxide catalyst is obtained via oxidative ammonolysis in gas phase. Said catalyst comprises the following elements: Molybdenum (Mo), vanadium (V), niobium (Nb), oxygen (O) and, at least one element selected from the group consisting of stibium (Sb) and tellurium (Te). Proposed method comprises heating of precursor solid mix containing compounds of molybdenum, vanadium, niobium, oxygen and, at least one element selected from the group consisting of stibium and tellurium in contact with gas flow at first heating rate of about 15°C/min unless said precursor solid mix reaches the temperature of preliminary calcination not exceeding 400°C. Besides, and not obligatorily, it includes bringing precursor solid mix in contact with hot zone at the temperature higher than approx. 100°C. Note here that said precursor is described by the following formula: Mo1VaSbbTecNbdOn, where 0.1≤a≤1.0, 0≤b≤1.0, 0≤c≤1.0, 0.001≤d≤0.25; n stands for quantity of oxygen atoms required for saturation of valency of all other elements of mixed oxide provided that one or several other elements may exist in lower oxidation state compared to maximum oxidation; a, b, c and d are relationships between mole number of appropriate elements and that of Mo.

EFFECT: new efficient process of making mixed oxide catalyst.

24 cl, 3 dwg, 2 tbl, 15 ex

Similar patents RU2483800C2

Title Year Author Number
METHOD OF PREPARING MIXED METAL OXIDE CATALYSTS FOR OXIDATIVE AMMONOLYSIS AND/OR OXIDATION OF LOWER ALKANES 2009
  • Beseker Charl'Z Dzh.
  • Sutradkhar Bkhag'Ja Chandra
  • Toft Mark A.
  • Brehzdil Dzhejms F.
  • Khaddad Muin S.
  • Pararizos Kristos
  • Sili Majkl Dzh.
RU2495720C2
METHOD FOR OXIDATIVE AMMONOLYSIS OF PROPANE AND ISOBUTANE IN PRESENCE OF MIXED METAL OXIDE CATALYSTS 2008
  • Lagmehjr Klaus G.
  • Koehn Stiven Alan
  • Zejdzhek Gerri V.
  • Bkhattachar'Ja Alakananda
  • Sutradkhar Bkhag'Ja Chandra
  • Brazdil Frank F. Dzhr.
RU2451548C2
MIXED METAL OXIDE OXIDATION CATALYSTS AND OXIDATIVE AMMONOLYSIS OF PROPANE AND ISOBUTANE AND METHOD OF OBTAINING THEM 2004
  • Lagmehr Klaus Zh.
  • Zisk Dzhessika
  • Grasselli Robert K.
RU2356627C2
METHOD FOR OXIDATIVE AMMONOLYSIS OR OXIDATION OF PROPANE AND ISOBUTANE 2008
  • Paparizos Kristos
  • Sili Majkl Dzh.
  • Brehzdil Dzhejms F. Ml.
  • Sutradkhar Bkhag'Ja Chandra
RU2495024C2
MIXED METAL OXIDE CATALYSTS AND METHOD OF CATALYTIC CONVERSION OF LOWER ALIPHATIC HYDROCARBONS 2008
  • Kehduk Dzhejms A.
  • Brehzdil Dzhejms F. Ml.
  • Bkhattacharajja Alakananda
  • Paparizos Kristos
RU2476265C2
CATALYST FOR OXIDISING HYDROCARBONS DURING GAS-PHASE CONTACT, METHOD OF PRODUCING SAID CATALYST AND METHOD FOR GAS-PHASE OXIDATION OF HYDROCARBONS USING SAID CATALYST 2009
  • Kim Dzhin-Do
  • Cha K'Jong-Jong
  • Kum Sang-Seop
  • Moon Sang-Kheup
RU2456072C1
CATALYST FOR OXIDISING HYDROCARBONS DURING GAS-PHASE CONTACT, METHOD OF PRODUCING SAID CATALYST AND METHOD FOR GAS-PHASE OXIDATION OF HYDROCARBONS USING SAID CATALYST 2009
  • Kim Dzhin-Do
  • Cha K'Jong-Jong
  • Jo Bu-Joung
  • Moon Sang-Kheup
RU2455064C1
CATALYTIC COMPOSITION FOR SELECTIVITY OF TRANSFORMATION ALKANES INTO UNSATURATED CARBONIC ACIDS, METHOD OF OBTAINING COMPOSITION AND METHOD OF COMPOSITION APPLICATION 2005
  • Khazin Polett N.
  • Ehllis Pol Eh. Ml.
RU2342991C2
OXIDE CATALYST AND METHOD FOR PRODUCING UNSATURATED NITRILES 2020
  • Oyama, Gosuke
  • Oka, Yuya
  • Koike, Natsume
  • Yoshida, Makoto
RU2793851C1
METHOD OF UNSATURATED NITRILE PRODUCTION 2011
  • Tamura So
  • Sodzi Sadao
RU2558146C2

RU 2 483 800 C2

Authors

Sutradkhar Bkhag'Ja Chandra

Zabo Tomas L.

Khaddad Mjunin S.

Toft Mark A.

Paparizos Kristos

Bodivala Lina K.

Dates

2013-06-10Published

2008-12-02Filed