Ivonne C Weidner

Title: The Innovative Contributions of Ivonne C Weidner

Introduction

Ivonne C Weidner is a notable inventor based in Hixson, TN (US). She has made significant contributions to the field of corrosion inhibitors and chelating resins. With a total of 4 patents to her name, her work has had a considerable impact on various industries.

Latest Patents

One of her latest patents focuses on sulfur-based corrosion inhibitors. This invention presents alternative inhibitors that improve upon tolyltriazole in inhibiting yellow metal corrosion. The dithiocarbamate compounds and their salts were rigorously compared to tolyltriazole under identical conditions. These comparative tests were conducted in common corrosion testing systems, utilizing both electrochemical corrosion cells and pilot cooling rigs, with various water conditions. The test methods included electrochemical studies such as linear polarization resistance, open circuit potential versus time, Tafel, and cyclic polarization.

Another significant patent is for a polydithiocarbamate resin. This invention is directed to a solid chelating resin consisting of a reactive hydrophobic backbone with pendent carbodithioic groups. The resin is a poly(dithiocarbamate) that contains no tertiary nitrogen groups. The invention also outlines a novel process for making a chelating resin, which involves reacting a nucleophilic compound with carbon disulfide in a suitable solvent to form a carbodithioic acid, neutralizing the carbodithioic acid with a base to form a carbodithioic acid salt, and reacting the salt with a crosslinking reagent in a suitable solvent to create a solid chelating resin. This chelating resin is particularly useful in removing metals and cationic compounds from effluent streams.

Career Highlights

Throughout her career, Ivonne has worked with prominent companies such as National Starch and Chemical Investment Holding Corporation and Akzo Nobel N.V. Her experience in these organizations has contributed to her expertise in the field of chemical engineering and innovation.

Collaborations

Ivonne has collaborated with notable colleagues, including Alvie L Foster, Jr. and Klein A Rodrigues. These partnerships have likely enriched her work and expanded her contributions to the field.

Conclusion

Ivonne C Weidner's innovative work in corrosion inhibitors and chelating resins showcases her significant contributions to the field of chemistry