Eberhard Bandtel

Title: Eberhard Bandtel: Innovator in Chemical Processes

Introduction

Eberhard Bandtel is a notable inventor based in Krefeld, Germany. He has made significant contributions to the field of chemical processes, holding a total of 4 patents. His work primarily focuses on the preparation of trimethylolpropane and the isolation of boron-containing phenol/formaldehyde resins.

Latest Patents

One of his latest patents is a process for the preparation of trimethylolpropane. In this process, butyraldehyde is metered into a mixture of water, an alkaline condensing agent, and formaldehyde, which contains less than 0.1 mol of methanol relative to 1 mol of formaldehyde. This reaction occurs at temperatures ranging from 15°C to 50°C. After the addition of butyraldehyde, the reaction mixture is heated up to 90°C, ensuring that sufficient water is present so that the final product contains 5 to 25% by weight of trimethylolpropane. Another significant patent involves the process for isolating boron-containing phenol/formaldehyde resins. This process allows for the effective isolation of these resins from their reaction media by evaporating them in a spiral flow evaporator, which has specific ratios for throughput and tube cross-section.

Career Highlights

Eberhard Bandtel is associated with Bayer Aktiengesellschaft, a leading company in the chemical industry. His innovative work has contributed to advancements in chemical manufacturing processes, enhancing efficiency and product quality.

Collaborations

Throughout his career, Eberhard has collaborated with notable colleagues, including Otto Immel and Hans-Helmut Schwarz. These collaborations have fostered a productive environment for innovation and development in their respective fields.

Conclusion

Eberhard Bandtel's contributions to chemical processes through his patents demonstrate his expertise and commitment to innovation. His work continues to influence the industry, showcasing the importance of research and development in advancing technology.