Patents by Inventor Deyvi Javier RIVAS VILLARREAL

Deyvi Javier RIVAS VILLARREAL 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).

  • METHOD FOR PRODUCING PHOSPHORIC ACID AND CALCIUM SULPHATE QUALITY SUITABLE FOR A CLINKER PROCESS FOR THE COMMERCIAL AND INDUSTRIAL UTILIZATION OF CALCIUM SULPHATE
    Publication number: 20230373789
    Abstract: A process may involve digesting raw phosphate with concentrated sulfuric acid and converting the raw phosphate to calcium sulfate in the form of dihydrate and/or hemihydrate, and phosphoric acid, separating off calcium sulfate as solid from a liquid phase of a suspension that is obtained, treating the calcium sulfate that is separated off or from a stockpile with an acid to give a suspension with purified calcium sulfate and P2O5-containing acid solution, separating off the purified calcium sulfate as solid from a liquid phase of a suspension obtained, using the P2O5-containing liquid phase as a portion of the sulfuric acid required for digesting the raw phosphate or as feedstock for treating phosphogypsum from the stockpile to give a suspension of purified calcium sulfate and P2O5-containing acid solution, which is thereafter processed.
    Type: Application
    Filed: January 5, 2021
    Publication date: November 23, 2023
    Applicants: thyssenkrupp Industrial Solutions AG, thyssenkrupp AG
    Inventors: Peter STOCKHOFF, Stefan HELMLE, Deyvi Javier RIVAS VILLARREAL, Nicolai DAHEIM