Location History:
- Beechwood, GB (2000)
- Warrington, GB (2001 - 2002)
Company Filing History:
2 out of 65 
1 out of 19 
1 out of 382 Years Active: 2000-2002
Title: The Innovative Contributions of Sarah J Colgan
Introduction
Sarah J Colgan is a notable inventor based in Warrington, GB. She has made significant contributions to the field of metal processing, particularly through her innovative approaches to pickling metals. With a total of 4 patents to her name, Colgan's work exemplifies the intersection of chemistry and engineering.
Latest Patents
One of her latest patents is a process for pickling a metal using hydrogen peroxide. This pickling process involves treating steel and nickel or chromium alloys with an acidic pickling solution that employs an oxidant, specifically hydrogen peroxide. The process features a unique system where the liquor is recirculated through inlets that include a nozzle feeding liquor into a diffuser. This design allows for the withdrawal of liquor from the bath, with the volume flowing through the diffuser being a multiple of the flow through the nozzle. The acidic solution contains iron and free hydrogen peroxide at a concentration of up to 0.1 gpl. Notably, the process can operate effectively at a free fluoride concentration ranging from 20 to 30 gpl and a sulphuric acid concentration of 80 to 110 gpl. This innovative method extends the lifetime of the bath compared to traditional air agitation systems.
Career Highlights
Throughout her career, Sarah J Colgan has worked with prominent companies in the chemical industry, including Solvay Interox GmbH and Solvay. Her experience in these organizations has allowed her to refine her expertise in metal processing and contribute to advancements in the field.
Collaborations
Colgan has collaborated with several professionals in her field, including Neil J Sanders and Colin F McDonogh. These partnerships have likely enriched her work and led to further innovations in her area of expertise.
Conclusion
Sarah J Colgan's contributions to the field of metal processing through her innovative pickling processes highlight her role as a significant inventor. Her work not only advances industrial practices but also showcases the importance of creativity and collaboration in scientific research.