Patents by Inventor John Frank Davidson

John Frank Davidson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Treatment of iron chloride from chlorination dust
    Patent number: 6511646
    Abstract: A process for producing chlorine and iron oxide from iron chloride (which may be generated as a by-product of the direct chlorination of titaniferous ores) comprises the steps of converting ferrous chloride to ferric chloride by reaction with chlorine, separating the solids from the gaseous products, reacting the gaseous ferric chloride with oxygen, condensing unreacted ferric chloride onto iron oxide particles, separating the gaseous products from the iron oxide particles and recycling the iron oxide particles to the oxidation or condensation step.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: January 28, 2003
    Assignee: Tioxide Group Services Limited
    Inventors: Barry Neil Hooper, Martin Hirsch, Andreas Orth, Brian Bennett, John Frank Davidson, Martin Conduit, Neil Fallon, Peter John Davidson