2 patents
Utility
Acidic zirconium hydroxide
19 Sep 23
This invention relates to azirconium hydroxideor zirconium oxide comprising, on an oxide basis, up to 30 wt % of a dopant comprising one or more of silicon, sulphate, phosphate, tungsten, niobium, aluminium, molybdenum, titanium or tin, and having acid sites, wherein the majority of the acid sites are Lewis acid sites.
Hazel Stephenson, Iryna Chepurna, Deborah Jayne Harris, David Scapens
Filed: 30 Jan 17
Utility
Zirconia-based compositions for use as three way catalysts
28 Mar 23
A cerium-zirconium based mixed oxide composition have: (a) a Ce:Zr molar ratio of 1 or less, and (b) a cerium oxide content of 10-50% by weight.
Deborah Jayne Harris, David Alastair Scapens
Filed: 27 Oct 16
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