EP 0931048 A1 19990728 - PROCESS FOR PRODUCING A CATALYTICALLY ACTIVE MULTIMETAL OXIDE MATERIAL
Title (en)
PROCESS FOR PRODUCING A CATALYTICALLY ACTIVE MULTIMETAL OXIDE MATERIAL
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER KATALYTISCH AKTIVEN MULTIMETALLOXIDMASSE
Title (fr)
PROCEDE POUR LA FABRICATION D'UNE MATIERE A ACTION CATALYTIQUE CONSTITUEE D'OXYDES DE PLUSIEURS METAUX
Publication
Application
Priority
- DE 19638249 A 19960919
- EP 9704903 W 19970909
Abstract (en)
[origin: DE19638249A1] In a process for producing multimetal oxide materials which contain tungsten and/or molybdenum, sulphur, phosphorus, arsenic, boron, silicium and/or germanium, vanadium and/or niobium as well as antimony and which are suitable as catalysts for the gas-phase catalytic oxidative conversion of methacrolein into methacrylic acid, sources which at least partially contain ammonium ions are used, and calcination is carried out in a calcination atmosphere largely devoid of NH3.
IPC 1-7
IPC 8 full level
B01J 23/16 (2006.01); B01J 27/04 (2006.01); B01J 27/057 (2006.01); B01J 27/199 (2006.01); C07B 61/00 (2006.01); C07C 51/235 (2006.01); C07C 51/25 (2006.01); C07C 57/055 (2006.01)
CPC (source: EP)
B01J 23/002 (2013.01); B01J 27/199 (2013.01); C07C 51/252 (2013.01); B01J 2523/00 (2013.01)
Citation (search report)
See references of WO 9812167A1
Designated contracting state (EPC)
DE
DOCDB simple family (publication)
DE 19638249 A1 19980326; AU 4383597 A 19980414; EP 0931048 A1 19990728; ID 18317 A 19980326; JP 2001500427 A 20010116; WO 9812167 A1 19980326
DOCDB simple family (application)
DE 19638249 A 19960919; AU 4383597 A 19970909; EP 9704903 W 19970909; EP 97942001 A 19970909; ID 973249 A 19970919; JP 51424498 A 19970909