Patents Represented by Law Firm Morgan, Finnegan, Pine, Foley & Fee
  • Process for the production of a rhenium heptoxide/alumina disproportionation catalyst
    Patent number: 3974233
    Abstract: A rhenium heptoxide supported on alumina catalyst is prepared by digesting the alumina support with an aqueous solution of ammonium phosphate, ammonium dihydrogen phosphate or diammonium hydrogen phosphate at a temperature in the range ambient to the boiling point of the solution, separating the treated alumina by for example sieving and loading the treated alumina with between 1 and 15% by weight of rhenium heptoxide. The catalyst prepared in this manner is active for the disproportionation of olefinic hydrocarbons.
    Type: Grant
    Filed: October 17, 1974
    Date of Patent: August 10, 1976
    Assignee: BP Chemicals International Limited
    Inventor: Malcolm John Lawrenson