Stefan Helmle

Title: Stefan Helmle - Innovator in Phosphoric Acid Production

Introduction

Stefan Helmle is an inventor based in Hamm, Germany. He has worked with notable companies such as Thyssenkrupp Industrial Solutions AG and ThyssenKrupp AG. Although he currently holds no granted patents, his contributions to the field of phosphoric acid production are significant.

Latest Patent Applications

Stefan Helmle has submitted several innovative patent applications. One of his latest applications is titled "Method for Producing Phosphoric Acid and Calcium Sulphate Quality Suitable for a Clinker Process for the Commercial and Industrial Utilization of Calcium Sulphate." This process involves digesting raw phosphate with concentrated sulfuric acid and converting it to calcium sulfate in the form of dihydrate and/or hemihydrate, along with phosphoric acid. The method includes separating calcium sulfate as a solid from a liquid phase of a suspension obtained, treating the calcium sulfate with acid to produce a purified suspension, and utilizing the resulting liquid phase in further processes.

Another application is titled "Integrated Method for the Commercial and Industrial Utilization of Calcium Sulphate Whilst Obtaining Rare Earth Elements from the Production of Phosphoric Acid." This process entails treating calcium sulfate separated from phosphoric acid with acid to obtain a purified suspension. The purified calcium sulfate is then treated to leach rare earth elements, which are separated from the liquid phase, and the remaining material is used in cement clinker production.

Conclusion

Stefan Helmle's work in the field of phosphoric acid production showcases his innovative approach to utilizing calcium sulfate and rare earth elements. His latest patent applications reflect his commitment to advancing industrial processes.