Location History:
- Kastl, DE (2002 - 2003)
- Burgkirchen, DE (2003)
Company Filing History:
2 out of 14,084 
1 out of 27 
1 out of 832,880 Years Active: 2002-2003
Title: The Innovative Contributions of Stephan Führer
Introduction
Stephan Führer is a notable inventor based in Kastl, Germany. He has made significant contributions to the field of chemical engineering, particularly in the recovery of fluorinated compounds. With a total of 4 patents to his name, his work has implications for both environmental sustainability and industrial efficiency.
Latest Patents
Führer's latest patents include a method for recovering fluorinated emulsifiers. This innovative approach involves binding fluorinated emulsifiers, such as perfluorooctanoic acid, to anionic exchange resins. This method is designed for the purification of aqueous effluent from the production of fluoropolymers. The emulsifiers can be quantitatively eluted from the exchanger using a water-miscible organic solvent that contains a small amount of ammonia. Distilling off the ammonia-containing solvent allows for the recycling of the emulsifier for further polymerization, while the ammoniacal solvent can be reused for elution. Another significant patent focuses on recovering fluorinated alkanoic acids from wastewater. This process involves removing fine solids from the wastewater, followed by contacting the wastewater with an anion-exchange resin to elute the adsorbed emulsifier acids.
Career Highlights
Throughout his career, Stephan Führer has worked with various companies, including 3M Innovative Properties Company. His experience in these organizations has allowed him to develop and refine his innovative methods for recovering valuable chemical compounds.
Collaborations
Führer has collaborated with notable colleagues such as Bernd Felix and Thomas Kaiser. Their combined expertise has contributed to the advancement of technologies in the field of chemical recovery.
Conclusion
Stephan Führer's contributions to the field of chemical engineering are marked by his innovative patents and collaborations. His work not only addresses industrial challenges but also promotes environmental sustainability through the recovery of fluorinated compounds.