EP 1051256 A1 20001115 - METHOD FOR REGENERATING SUPPORTED CATALYSTS COVERED WITH GOLD PARTICLES AND USED FOR OXIDISING UNSATURATED HYDROCARBONS
Title (en)
METHOD FOR REGENERATING SUPPORTED CATALYSTS COVERED WITH GOLD PARTICLES AND USED FOR OXIDISING UNSATURATED HYDROCARBONS
Title (de)
VERFAHREN ZUR REGENERIERUNG VON MIT GOLDTEILCHEN BELEGTEN TRÄGERKATALYSATOREN FÜR DIE OXIDATION UNGESÄTTIGTER KOHLENWASSERSTOFFE
Title (fr)
PROCEDE POUR REGENERER DES CATALYSEURS A SUPPORTS, RECOUVERTS DE PARTICULES D'OR ET SERVANT A L'OXYDATION D'HYDROCARBURES INSATURES
Publication
Application
Priority
- DE 19804711 A 19980206
- EP 9900035 W 19990107
Abstract (en)
[origin: DE19804711A1] The invention relates to a method for regenerating supported catalysts covered with gold particles, based on titanium dioxide or titanium dioxide hydrate and used for oxidising unsaturated hydrocarbons in a gas phase. The invention is characterised in that the catalyst is regenerated by contacting it with water, a diluted acid or a diluted hydroperoxide solution, to restore its catalytic activity. The invention also relates to the use of regenerated catalysts for oxidising ethene, propene, 1-butene or 2-butene in the gas phase.
IPC 1-7
IPC 8 full level
B01J 23/52 (2006.01); B01J 23/96 (2006.01); B01J 38/60 (2006.01); B01J 38/70 (2006.01); C07D 301/04 (2006.01); C07D 301/10 (2006.01); C07D 303/04 (2006.01)
CPC (source: EP KR)
B01J 23/52 (2013.01 - EP); B01J 23/96 (2013.01 - EP KR); B01J 38/60 (2013.01 - EP KR); B01J 38/68 (2013.01 - KR); B01J 38/70 (2013.01 - EP); C07D 301/03 (2013.01 - KR); C07D 301/04 (2013.01 - EP); C07D 301/10 (2013.01 - EP); Y02P 20/584 (2015.11 - EP)
Designated contracting state (EPC)
BE DE ES FR GB IT NL PT
DOCDB simple family (publication)
WO 9939827 A1 19990812; AU 2164699 A 19990823; BR 9907661 A 20001024; CA 2319612 A1 19990812; CN 1144621 C 20040407; CN 1290194 A 20010404; DE 19804711 A1 19990812; EP 1051256 A1 20001115; HU P0100768 A2 20010628; HU P0100768 A3 20050628; ID 25615 A 20001019; JP 2002502687 A 20020129; KR 20010040709 A 20010515; TW 513326 B 20021211
DOCDB simple family (application)
EP 9900035 W 19990107; AU 2164699 A 19990107; BR 9907661 A 19990107; CA 2319612 A 19990107; CN 99802744 A 19990107; DE 19804711 A 19980206; EP 99901588 A 19990107; HU P0100768 A 19990107; ID 20001476 A 19990107; JP 2000530308 A 19990107; KR 20007008589 A 20000805; TW 88101455 A 19990201