Preparation of novel catalyst support
CA 1097313 A · Owner: Texaco Development Corporation · Inventors: Estes, John H.; Koniz, Leon F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a method of converting certain aluminas to purer more desirable forms of alumina. More particularly it relates to a method of upgrading the alumina by-product of the Ziegler higher alcohol process. The novel process of this invention for treating a charge alpha alumina monohydrate characterized by high purity by substantial absence, of alkali metal ions and by presence of titanium as a principal impurity includes the steps of: (i) calcining said charge alpha alumina monohydrate at temperature of about 800°F-900°F for 1-3 hours thereby forming a calcined charge alumina containing gamma alumina; (ii) mixing said calcined charge alumina containing gamma alumina with …
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 March 10, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 1998.
- 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.