Patents by Inventor Alvaro Abidaud

Alvaro Abidaud 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).

  • Continuous production of potassium nitrate via ion exchange
    Patent number: 5110578
    Abstract: Potassium nitrate is produced by contacting nitric acid with a potassium loaded strong cationic exchange resin. In a preferred embodiment, a solution of potassium nitrate and dilute nitric acid is produced in a continuous liquid solid contacting apparatus. The preferred apparatus is formed of a plurality of resin filled chambers which rotate in and out of periodic fluid communication with fixed feed and discharge ports. The apparatus design allows for continuous supply of a nitric acid solution, potassium chloride regeneration solution, wash solutions, and air streams to ports arranged in zones, so that resin filled chambers pass through the zones to continuously produce a solution containing potassium nitrate and dilute nitric acid. In a preferred embodiment, the solution of potassium nitrate produced is neutralized with potassium hydroxide to convert residual nitric acid to potassium nitrate.
    Type: Grant
    Filed: October 3, 1990
    Date of Patent: May 5, 1992
    Assignee: Monomeros Colombo Venezolanos, S.A. (E.M.A.)
    Inventor: Alvaro Abidaud