Company Filing History:
2 out of 1,164 
1 out of 1 
1 out of 14 Years Active: 1976-1988
Title: The Innovative Contributions of Donald E. Pearson
Introduction
Donald E. Pearson is a notable inventor based in Nashville, TN, with a significant portfolio of six patents. His work primarily focuses on environmental and chemical processes, showcasing his commitment to innovation and sustainability.
Latest Patents
One of Pearson's latest patents is a method for the separation of metallic and cyanide ions from electroplating solutions. This process involves the removal of cyanide and metal ions from electroplating wastewater by purging the cyanide, as hydrogen cyanide, with air. The air bubbles are dispersed in the wastewater after adjusting the pH to a range of 4 to 6.5. The cyanide ions are converted to hydrogen cyanide and transported to a separate vessel for absorption in a sodium hydroxide solution, all within a closed system to mitigate the hazards associated with hydrogen cyanide.
Another significant patent is the process for catalytic dehydration of ethanol vapor to ethylene. This process is conducted in the presence of water vapor, where a mixture of ethanol and water vapor is contacted with a catalyst bed containing a substituted phosphoric acid catalyst. The catalyst comprises a support that has absorbed a substituted phosphoric acid, with one of the hydroxyl groups replaced by a hydrophobic organic group containing 4 to 22 carbons.
Career Highlights
Throughout his career, Donald E. Pearson has made substantial contributions to the field of chemical engineering and environmental technology. His innovative approaches have led to advancements in the treatment of industrial waste and the efficient production of valuable chemicals.
Collaborations
Pearson has collaborated with notable individuals such as Sindhaghatta D. Venkataramu and Albert H. Beth, further enhancing the impact of his work through shared expertise and knowledge.
Conclusion
Donald E. Pearson's contributions to innovation and sustainability through his patents reflect his dedication to improving industrial processes and environmental safety. His work continues to influence the fields of chemical engineering and environmental technology.