Inventors with similar research interests:
Location History:
- Rivevale, NJ (US) (2004 - 2005)
- Riverdale, NJ (US) (1996 - 2014)
- River Vale, NJ (US) (1977 - 2020)
Company Filing History:
28 out of 121 
19 out of 80 
6 out of 40 
Years Active: 1977-2020
Areas of Expertise:
Title: Innovator Spotlight: Nabil Rizkalla's Contributions to Ethylene Oxide Catalysts
Introduction:
In the world of chemical engineering and catalyst development, Nabil Rizkalla has made significant contributions through his numerous patents and research endeavors. With his expertise in ethylene oxide catalysts, Rizkalla has greatly improved their performance, making them more efficient and sustainable. Let's delve into some of his latest patents and notable achievements.
Background:
Nabil Rizkalla holds an impressive collection of 18 patents and has worked with renowned companies such as Scientific Design Company, Inc. and SD Lizenzverwertungsgesellschaft mbH & Co. KG. His research primarily focuses on developing innovative techniques to enhance the performance of ethylene oxide catalysts.
Latest Patents:
One of Rizkalla's recent patents is titled "Carrier treatment to improve catalytic performance of an ethylene oxide catalyst." This patent reveals a method for reducing the sodium content of different carriers used in the catalyst. By contacting the carrier with water and recovering the rinse solution, the leached sodium content can be determined and reduced. This technique plays a crucial role in achieving a stable state of sodium content, ultimately improving the overall performance of the catalyst.
Another groundbreaking patent by Rizkalla is the "Silver catalysts with improved size and distribution density of silver particles." This innovation addresses the selectivity and activity decline issues in silver-based ethylene epoxidation catalysts. By incorporating a higher percentage of silver (greater than 20% by weight) on an alpha-alumina carrier, along with suitable promoters, Rizkalla's catalyst achieves remarkable performance. The silver particles in this catalyst have a diameter exceeding 150 nm, ensuring a distribution density of about 20 particles per 1 square micron or less.
Notable Collaborations:
Throughout his career, Nabil Rizkalla has collaborated with talented individuals who have also made significant contributions to the field. Andrzej Rokicki and Norma Beatriz Castagnola are two of his notable coworkers, supporting his research and catalyzing new ideas. Their collective expertise has resulted in the development of groundbreaking catalyst technologies and methodologies.
Conclusion:
Nabil Rizkalla's work in the field of ethylene oxide catalysts has paved the way for numerous advancements in efficiency and performance. With his extensive patent portfolio and affiliations with reputable companies, Rizkalla has proven himself as a leading innovator in the chemical engineering industry. His relentless pursuit of excellence and dedication to improving catalysts have undoubtedly made a significant impact on the field and continue to inspire future advancements.
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