Patents by Inventor Sarah Nicholson

Sarah Nicholson 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).

  • Operating Titanium Precipitation Process
    Publication number: 20080124261
    Abstract: A sulfate process for producing titania from a titaniferous material as disclosed. The process is characterized by a particular step of precipitating titanyl sulfate.
    Type: Application
    Filed: October 8, 2007
    Publication date: May 29, 2008
    Inventors: Eric Girvan Roche, Sarah Nicholson
  • Titanium Intermediate Processing
    Publication number: 20080124260
    Abstract: A sulfate process for producing titania from a titaniferous material as disclosed. The process is characterized by particular steps of separating precipitated titanyl sulfate from solution and subsequently treating the precipitated material prior to hydrolysis.
    Type: Application
    Filed: October 8, 2007
    Publication date: May 29, 2008
    Inventors: Eric Girvan Roche, Sarah Nicholson
  • Titanium Precipitation Process
    Publication number: 20080124262
    Abstract: A sulfate process for producing titania from a titaniferous material as disclosed. The process is characterized by a particular step of precipitating titanyl sulfate from solution.
    Type: Application
    Filed: October 8, 2007
    Publication date: May 29, 2008
    Inventors: Eric Girvan Roche, Sarah Nicholson
  • Production of titania
    Patent number: 7326390
    Abstract: A sulfate process for producing titania from titaniferous material is disclosed. The process includes precipitating titanyl sulfate from leach liquors containing acidic solutions of titanyl sulfate. The process is characterised by: (a) multiple stage leaching to produce leach liquors containing acidic solutions of titanyl sulfate; (b) using depleted leach liquor from a titanyl sulfate precipitation reactor in the leach steps; and (c) controlling acid concentration in the leach steps to avoid premature hydrolysis and premature precipitation.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: February 5, 2008
    Assignee: BHP Billiton Innovation Pty Ltd.
    Inventors: Eric Girvan Roche, Alan David Stuart, Philip Ernest Grazier, Sarah Nicholson
  • Production of titania
    Publication number: 20050180903
    Abstract: A sulfate process for producing titania from titaniferous material is disclosed. The process includes precipitating titanyl sulfate from leach liquors containing acidic solutions of titanyl sulfate. The process is characterised by: (a) multiple stage leaching to produce leach liquors containing acidic solutions of titanyl sulfate; (b) using depleted leach liquor from a titanyl sulfate precipitation reactor in the leach steps; and (c) controlling acid concentration in the leach steps to avoid premature hydrolysis and premature precipitation.
    Type: Application
    Filed: April 15, 2005
    Publication date: August 18, 2005
    Inventors: Eric Roche, Alan Stuart, Philip Grazier, Sarah Nicholson