Preparation of high activity silica-supported hydrotreating catalysts and catalysts thus prepared
CA 1261815 A · Owner: Shell Canada Limited · Inventors: Thompson, Mark S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for preparing silica-supported catalysts containing 10-25 %w molybdenum and from 1-5 %w nickel and/or cobalt as hydrogenation metals, wherein a dried silica support is impregnated with an aqueous solution or an aqueous mixture obtained by contacting a hydrogenation metal compound with a nitrogen-containing organic ligand such as ethylene-diamine tetraacetic acid, diethylene triamine or nitrilotriacetic acid in, the presence of water. CMRHO4
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.