Patents by Inventor Oscar David Labrana Valdivia

Oscar David Labrana Valdivia 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).

  • Publication number: 20040086451
    Abstract: Method for the automated production of liquid SO2 having a purity above 99.9% from elemental sulfur and pure oxygen, in the presence of SO2 recirculated from the closed circuit production system itself. The temperature of the sulfur is controlled by means of pre-defined S, O2 and SO2 ratios. The automation is made based on oxygen sensors and on sulfur and SO2 flow meters with their respective control connections and proportional valves permitting a fine control of the sulfur combustion reaction. The liquefaction of the gaseous SO2 produced is carried out alternatively by a cool plant working between −10 and −60° C. or with a compression unit working at a pressure between 3.8 and 5.0 bar. The automation permits an optimum temperature control and a clean production of SO2.
    Type: Application
    Filed: June 24, 2003
    Publication date: May 6, 2004
    Applicant: QUIMETAL INDUSTRIAL S.A.
    Inventors: Oscar David Labrana Valdivia, Hans Hanke Altmann