Patents by Inventor Laura Briand

Laura Briand 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).

  • Methanol oxidation over bulk metal vanadate catalysts
    Publication number: 20050038299
    Abstract: A method wherein a methanol-containing gas stream is passed in contact with a catalyst comprising a supported or unsupported bulk vanadate catalyst in the presence of an oxidizing agent for a time sufficient to convert at least a portion of the methanol to formaldehyde (CH2O).
    Type: Application
    Filed: December 20, 2002
    Publication date: February 17, 2005
    Inventors: Israel Wachs, Laura Briand
  • Metal molybdate/iron-molybdate dual catalyst bed system and process using the same for methanol oxidation to formaldehyde
    Patent number: 6518463
    Abstract: A process and fixed bed reactor for oxidizing methanol in a reactant gas feed stream to formaldehyde. The process comprises introducing the reactant gas feed stream into an upstream region containing a first metal molybdate catalyst (substantially free of a volatile Mo/MoO3 species) under oxidizing conditions to form a partially oxidized reactant gas feed stream which is then introduced under oxidizing conditions into a downstream region containing a second metal molybdate catalyst to further oxidize any residual methanol contained therein. A fixed bed reactor comprising an upstream region and a downstream region containing the aforementioned first and second metal molybdate catalysts, respectively, is utilized to implement the inventive process to yield a product gas stream containing formaldehyde preferably at a conversion of 85% or more and a selectivity of 90% or more.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: February 11, 2003
    Assignee: Lehigh University
    Inventors: Israel E. Wachs, Laura Briand
  • Metal molybdate/iron-molybdate dual catalyst bed system and process using the same for methanol oxidation to formaldehyde
    Publication number: 20020062048
    Abstract: A process and fixed bed reactor for oxidizing methanol in a reactant gas feed stream to formaldehyde. The process comprises introducing the reactant gas feed stream into an upstream region containing a first metal molybdate catalyst (substantially free of a volatile Mo/MoO3 species) under oxidizing conditions to form a partially oxidized reactant gas feed stream which is then introduced under oxidizing conditions into a downstream region containing a second metal molybdate catalyst to further oxidize any residual methanol contained therein. A fixed bed reactor comprising an upstream region and a downstream region containing the aforementioned first and second metal molybdate catalysts, respectively, is utilized to implement the inventive process to yield a product gas stream containing formaldehyde preferably at a conversion of 85% or more and a selectivity of 90% or more.
    Type: Application
    Filed: September 13, 2001
    Publication date: May 23, 2002
    Inventors: Israel E. Wachs, Laura Briand