This inventor holds 2 USPTO granted patents. Top assignee: First Chemical Corporation. Active years: 1991-1992.
Company Filing History:
Years Active: 1991-1992
Title: Lichang Wang: Innovator in Zeolite Catalysis
Introduction
Lichang Wang is a prominent inventor based in Guangzhou, China. He has made significant contributions to the field of chemical engineering, particularly in the area of zeolite catalysis. With a total of 2 patents, his work has garnered attention for its innovative approaches to alkylation processes.
Latest Patents
Wang's latest patents include two notable inventions. The first patent, titled "Selective C-alkylation of aniline in the presence of zeolite catalysts," describes a method for selectively ring-alkylating anilines. This process involves providing a mixture of a lower alkanol and an aniline, which is then exposed to temperatures ranging from 300°C to 500°C in the presence of an acidic Y-type zeolite. This method is particularly effective in producing para-alkylanilines. The second patent, "Selective N-alkylation of aniline in the presence of zeolite catalysts," outlines a similar approach but focuses on N-alkylation. This process utilizes a mixture of a lower alkanol and an aniline, exposed to temperatures between 250°C and 350°C, using an acidic zeolite with a pore size of 6 to 8 angstroms, such as S-115 zeolite, to predominantly form N-alkylanilines.
Career Highlights
Lichang Wang is currently employed at First Chemical Corporation, where he continues to advance his research and development efforts. His work has not only contributed to the scientific community but has also had practical applications in the chemical industry.
Collaborations
Wang has collaborated with notable colleagues, including Arthur C Bayer and Charles U Pittman, Jr. These partnerships have further enriched his research and innovation in the field.
Conclusion
Lichang Wang's contributions to zeolite catalysis and his innovative patents highlight his role as a key figure in chemical engineering. His work continues to influence the industry and pave the way for future advancements.