Company Filing History:
3 out of 4 
2 out of 658 
1 out of 1 Years Active: 1987-1988
Title: Friedrich Donhauser: Innovator in Separation Technologies
Introduction
Friedrich Donhauser is a notable inventor based in Amberg, Germany. He has made significant contributions to the field of separation technologies, holding a total of 4 patents. His work focuses on innovative methods for separating materials, particularly in high-pressure and high-temperature environments.
Latest Patents
One of Donhauser's latest patents is a multistage arrangement for countercurrent separation of suspended solids, such as crystals. This invention utilizes hydro-cyclone groups connected in series, along with corresponding pumps and pump wells. The design aims to operate efficiently with minimal apparatus expenditures under high pressures and temperatures. The hydro-cyclone groups and essential components are housed in a pressure-proof and heat-insulated chamber. Additionally, the arrangement includes an upstream classifier for removing coarser crystallizations and solid particles. This multistage arrangement is applicable in processes for producing terephthalic acid from dimethyl-terephthalate and in the hydrogenation of coal.
Another significant patent involves a process and apparatus for separating metallic components from nonmetallic components in a mixture. This innovative approach combines prefractionation by sedimentation, preferably through centrifugal sedimentation, followed by final concentration in a laminar flow process. The use of a spiral separator and vibrating tables allows for the recovery of nearly all metal components from the mixture.
Career Highlights
Throughout his career, Friedrich Donhauser has worked with prominent companies such as Amberger Kaolinwerke GmbH and Dynamit Nobel Aktiengesellschaft. His experience in these organizations has contributed to his expertise in separation technologies and innovation.
Collaborations
Donhauser has collaborated with notable coworkers, including Anton Schoengen and Jorg Porschen. These partnerships have likely enriched his work and led to advancements in his field.
Conclusion
Friedrich Donhauser's contributions to separation technologies through his innovative patents demonstrate his expertise and commitment to advancing the field. His work continues to influence processes in various industries, showcasing the importance of innovation in technology.