Process for making a silver catalyst
CA 1138408 A · Owner: Texaco Development Corporation · Inventors: Cavitt, Stanley B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A SILVER CATALYST, (D#75,605-1-F) ABSTRACT OF THE DISCLOSURE, A highly-active catalyst is prepared by abrading or wearing away the surface of a silver catalyst whereby 1 to about 10 weight percent of the catalyst is removed. The initial silver catalyst is formed, for example by, impregnating a porous catalyst support with a solution of a silver salt, an aqueous solvent and a cesium or rubidium salt sufficient to deposit on the support an effective amount of the said alkali metal and subsequently heating the impregnated support at an elevated temperature to evaporate volatiles and activate the catalyst. -1-
Read the whole patent
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 December 28, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 28, 1999.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
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.