EP 0873191 A1 19981028 - SUPPORTED SOLID SUPERACID CATALYSTS AND METHOD FOR MAKING THEM
Title (en)
SUPPORTED SOLID SUPERACID CATALYSTS AND METHOD FOR MAKING THEM
Title (de)
FESTE SUPERSÄURE TRÄGERKATALYSATOREN UND VERFAHREN ZU IHRER HERSTELLUNG
Title (fr)
CATALYSEURS SOLIDES DU TYPE SUPERACIDE SUR SUPPORT ET PROCEDE POUR LES FABRIQUER
Publication
Application
Priority
- US 9618436 W 19961118
- US 55981995 A 19951117
Abstract (en)
[origin: WO9718892A1] This invention provides supported solid superacid catalysts composed of anion-modified oxides/oxyhydroxides of Group IV metals such as hafnium (Hf), tin (Sn), titanium (Ti) or zirconium (Zr), precipitated onto a metal oxide support such as alumina, silica or mixtures thereof having initial surface area of 100-500 m<2>/gm, and is anion modified by addition of molybdate (MoO4), phosphate (PO4), selenate (SeO4), sulfate (SO4), or tungstate (WO4). The catalyst further includes an active promoter base metal such as Co, Ni and Pd or a noble metal such as Pt, Rh, and Ru to improve the catalyst stability against deactivation. These supported solid superacid catalysts are prepared by precipitation of hydroxides of Group IV metal onto the support material, followed by the anion-treatment, addition of the stabilizing promoter metal, and calcination at 500-650 DEG C temperature. Typical supported solid superacid catalysts have a composition of 70-90 wt.% support material, 5-20 wt.% active transition metal oxide, 4-8 wt.% of the anionic group, and 0.05-5 wt.% of the active stabilizing base or noble promoter metal additive. The resulting catalysts have high final surface areas of 100-450 m<2>/gm, and provide high catalytic activity for various alkylation and hydrocarbon conversion reactions, such as alkylation of refinery gas for producing high-octane gasoline, cracking and hydroisomerization of long chain paraffins, and conversion of waste plastics and low quality oils waxes to produce value-added lubricating oils and chemicals.
IPC 1-7
B01J 27/053; B01J 27/057; B01J 27/14; C07C 2/58; C07C 4/06; C10G 45/62
IPC 8 full level
B01J 21/06 (2006.01); B01J 23/88 (2006.01); B01J 27/053 (2006.01); B01J 27/057 (2006.01); B01J 27/185 (2006.01); C07C 2/66 (2006.01); C10G 45/60 (2006.01); C10G 45/62 (2006.01)
CPC (source: EP)
B01J 21/06 (2013.01); B01J 21/066 (2013.01); B01J 23/88 (2013.01); B01J 27/053 (2013.01); B01J 27/0573 (2013.01); B01J 27/185 (2013.01); C07C 2/66 (2013.01); C10G 45/60 (2013.01); C10G 45/62 (2013.01); C07C 2521/04 (2013.01); C07C 2521/06 (2013.01); C07C 2521/08 (2013.01); C07C 2523/28 (2013.01); C07C 2523/30 (2013.01); C07C 2523/44 (2013.01); C07C 2523/75 (2013.01); C07C 2523/755 (2013.01); C07C 2527/053 (2013.01); C07C 2527/057 (2013.01); C07C 2527/167 (2013.01)
Citation (search report)
See references of WO 9718892A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9718892 A1 19970529; AU 7736596 A 19970611; CA 2238034 A1 19970529; EP 0873191 A1 19981028
DOCDB simple family (application)
US 9618436 W 19961118; AU 7736596 A 19961118; CA 2238034 A 19961118; EP 96940501 A 19961118