Patent Yard Sign in
Expired Canadian patentCanada

Catalytic activity of aluminosilicate zeolites

CA 1203226 A · Owner: British Petroleum Company P.L.C. (The) · Inventors: Gane, Brian R.; Howard, Philip

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

This invention relates to a method of improving the catalytic activity of a freshly made zeolite loaded with gallium ions by first treating with steam and then with hydrogen. Steam and hydrogen treatment may be carried out before or after loading with gallium simultaneously or successively. It has been found that a combination of steam and hydrogen treatments gives high conversions of hydrocarbon feeds and high selectivity to aromatics.

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 April 15, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 15, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 15, 1984
GrantedApril 15, 1986
Term endedApril 15, 2003
Patent numberCA 1203226 A
Classification (IPC)B01J29/90 +2 more

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedFeb 15, 1984Patent grantedApril 15, 1986Term endedApril 15, 2003

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.