Wouter Roos

Title: Wouter Roos and His Patents in Chemical Processing

Introduction

Wouter Roos is an inventor associated with Nisse, the Netherlands. His patent work addresses chemical processes for reducing metal ions and producing alkali metal phosphate solutions with low vanadium content. His listed portfolio includes 2 patents, and he is associated with Hoechst Aktiengesellschaft.

Latest Patents

- **Process for Reducing Metal Ions in Aqueous Solutions.** This process uses ferrophosphorus as a reductant to convert metal ions from a higher oxidation state to a lower one.

- **Process for Making Alkali Metal Phosphate Solutions Containing Little Vanadium.** This process treats vanadium-containing phosphoric acid to produce alkali metal phosphate solutions with little vanadium. A reductant establishes a negative redox potential, after which the acid is partially neutralized to an alkali metal-to-phosphorus molar ratio between 0.85 and 1.0. The partial neutralization continues for at least 10 minutes without intermediate filtration. A second neutralization stage raises the ratio to between 1.9 and 2.1, and any collected precipitate can be separated and processed.

Career Highlights

Roos’s listed inventions focus on chemical processing, particularly the reduction of metal ions and the preparation of phosphate solutions. His work is associated with Hoechst Aktiengesellschaft.

Collaborations

Bernardus J. Damman and Raban von Schenck are identified as Roos’s coworkers.

Conclusion

Wouter Roos’s two listed patents reflect contributions to chemical processes for metal-ion reduction and the production of low-vanadium phosphate solutions.