Bernardus J Damman

Title: **Innovative Contributions of Bernardus J. Damman in Phosphoric Acid Processing**

Introduction

Bernardus J. Damman is a notable inventor based in Middelburg, Netherlands, recognized for his significant contributions to the field of chemical engineering. With a total of four patents to his name, Damman has focused primarily on processes aimed at purifying phosphoric acid from hazardous metals such as lead and cadmium. His work reflects a deep commitment to environmental sustainability and industrial efficiency.

Latest Patents

Bernardus J. Damman's recent patents showcase his innovative approach to addressing the contamination of phosphoric acid. One of his key inventions is a **process and plant for removing lead, cadmium, and zinc from dusts** produced during the electrothermal production of yellow phosphorus. This method involves digesting dusts with phosphoric acid, which has a minimum of 25% by weight of P2O5, at elevated temperatures above 60°C in a ventilated zone. The resulting digest solution is then filtered to yield a solid residue free from lead, cadmium, and zinc, along with a phosphoric acid solution containing these metals.

Furthermore, he has developed a **process for the removal of lead and cadmium from phosphoric acid**. In this invention, an alkali solution and an aqueous sulfide solution are mixed into phosphoric acid containing up to 32% by weight of P2O5. The process meticulously adjusts the temperature to facilitate the precipitation of sulfides, which are then separated from the phosphoric acid, ensuring a cleaner product.

Career Highlights

Bernardus J. Damman is associated with Hoechst Aktiengesellschaft, a prominent company known for its chemistry and materials science innovations. His role has allowed him to pursue patents that tackle complex chemical challenges, demonstrating a blend of theoretical knowledge and practical application in his field.

Collaborations

Throughout his career, Damman has collaborated with talented professionals like Wouter Roos and Raban Von Schenck. Their combined expertise has contributed to advancements in the purification processes of phosphoric acid, enhancing the overall efficacy and safety of chemical production methods.

Conclusion

Bernardus J. Damman continues to make strides in the field of chemical engineering with his inventive solutions aimed at environmental challenges. His patents reflect a dedication to improving industrial processes while minimizing harmful waste, ensuring a sustainable future in the chemical manufacturing sector. As he continues his work at Hoechst Aktiengesellschaft, Damman's influence remains vital in the ongoing pursuit of innovation in chemical engineering.