The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 24, 2026
Filed:
Jan. 05, 2021
Thyssenkrupp Industrial Solutions Ag, Essen, DE;
Thyssenkrupp Ag, Essen, DE;
Peter Stockhoff, Dorsten, DE;
Stefan Helmle, Hamm, DE;
Deyvi Javier Rivas Villarreal, Dortmund, DE;
Nicolai Daheim, Beckum, DE;
thyssenkrupp Industrial Solutions AG, Essen, DE;
thyssenkrupp AG, Essen, DE;
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 PO-containing acid solution, separating off the purified calcium sulfate as solid from a liquid phase of a suspension obtained, using the PO-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 PO-containing acid solution, which is thereafter processed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile