Company Filing History:
Years Active: 2010-2023
Title: Innovations of Hazel Stephenson
Introduction
Hazel Stephenson is a notable inventor based in Manchester, GB. She has made significant contributions to the field of materials science, particularly in the development of zirconium hydroxide compounds. With a total of three patents to her name, her work has implications in various industrial applications.
Latest Patents
One of her latest patents is focused on acidic zirconium hydroxide. This invention relates to a zirconium hydroxide or zirconium oxide that comprises, on an oxide basis, up to 30 wt % of a dopant. The dopant includes elements such as silicon, sulphate, phosphate, tungsten, niobium, aluminium, molybdenum, titanium, or tin, and features acid sites, primarily Lewis acid sites. The invention also encompasses a catalyst, catalyst support, or precursor that includes the zirconium hydroxide or zirconium oxide. The process for preparing this zirconium hydroxide involves several steps, including dissolving a zirconium salt in an aqueous acid and adding complexing agents.
Another significant patent by Hazel is for an improved amorphous zirconium hydroxide. This hydroxide boasts a surface area of at least 300 m²/g and a total pore volume of at least 0.70 cm³/g. The production method includes preparing an aqueous solution with sulphate anions and a zirconium salt, chilling the solution, and precipitating the amorphous zirconium hydroxide. This zirconium hydroxide is particularly useful in catalytic applications.
Career Highlights
Hazel currently works at Magnesium Elektron, Inc., where she continues to innovate in the field of materials science. Her expertise in zirconium compounds has positioned her as a key player in her industry.
Collaborations
Hazel collaborates with talented coworkers, including Heather Bradshaw and Clive Butler. Their combined efforts contribute to the advancement of their projects and innovations.
Conclusion
Hazel Stephenson's work in developing zirconium hydroxide compounds showcases her innovative spirit and dedication to materials science. Her patents reflect her commitment to advancing technology in this field.