Location History:
- Frankfurt-am-Main, DE (1976)
- Schwalbach, DE (1976 - 1985)
- Eschborn, DE (1995 - 1998)
Company Filing History:
15 out of 642 
1 out of 76 Years Active: 1976-1998
Title: The Innovative Contributions of Hans-Martin Stonner
Introduction
Hans-Martin Stonner is a notable inventor based in Schwalbach, Germany. He holds a total of 15 patents, showcasing his significant contributions to the field of chemical engineering and process innovation. His work primarily focuses on the extraction of phenols and the preparation of wax esters, which are essential in various industrial applications.
Latest Patents
One of Stonner's latest patents involves a process for extracting phenols from phenol-containing wastewater. This innovative method utilizes two solvents, A and B, to efficiently separate phenols from the wastewater. The process begins with the wastewater passing through a first extraction zone, followed by a second extraction zone. A mixture of solvents A and B is introduced into the first zone, while at least one of the solvents is added to the second zone. The solvent mixture, now loaded with phenols, is withdrawn from the first zone, where phenols are separated and the solvents are reused. Solvent B is characterized by its lower boiling point and lower water solubility compared to solvent A, making it an effective choice for this extraction process.
Another significant patent by Stonner details the preparation of wax esters from a liquid mixture containing fatty acids and fatty alcohols. The process involves agitating the mixture at temperatures ranging from 105 to 300 degrees Celsius and spraying it into a designated spraying zone. An atmosphere containing water vapor is created in this zone, which is partially removed. This innovative approach allows for the efficient production of wax esters without the need for added catalysts.
Career Highlights
Throughout his career, Hans-Martin Stonner has worked with prominent companies such as Metallgesellschaft Aktiengesellschaft and Chemie Linz Aktiengesellschaft. His experience in these organizations has contributed to his expertise in chemical processes and innovations.
Collaborations
Stonner has collaborated with notable individuals in the field, including Paul Wiesner and Fritz Wohler. These partnerships have likely enriched his work and led to further advancements in his research and inventions.
Conclusion
Hans-Martin Stonner's contributions to the field of chemical engineering through his patents and innovative processes have made a significant impact. His work continues to influence the industry, showcasing the importance of creativity and innovation in solving complex problems.