This inventor holds 2 USPTO granted patents. Top assignee: Beijing University of Technology. Active years: 2018-2021.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2018-2021
Title: Liwen Ma: Innovator in Metal Separation Technologies
Introduction
Liwen Ma is a prominent inventor based in Beijing, China. He has made significant contributions to the field of metal separation technologies, particularly in the recovery of valuable metals from waste materials. With a total of 2 patents, his work focuses on environmentally friendly methods for extracting metals.
Latest Patents
Liwen Ma's latest patents include a method for separating nickel and cobalt from a solution. This innovative method involves obtaining a solution containing nickel and cobalt through acid leaching of a cathode material from waste lithium-ion batteries. The process adjusts the pH of the solution to between 3.5 and 4.5 and utilizes extractants to separate the metals efficiently. The cobalt is extracted into the organic phase while nickel remains in the aqueous phase, avoiding the discharge of saponification wastewater.
Another notable patent is a process for efficiently enriching and recovering noble metals such as platinum and palladium through solvent extraction. This process employs isoamyl alcohol as the extracting agent and 2-methoxyphenyl thiourea as a complexing agent. The method enhances the recovery ratios of noble metals while minimizing environmental impact and utilizing low-cost reagents.
Career Highlights
Liwen Ma is affiliated with the Beijing University of Technology, where he conducts research and develops innovative solutions for metal recovery. His work has garnered attention for its practical applications in recycling and environmental sustainability.
Collaborations
Liwen Ma collaborates with esteemed colleagues, including Zuoren Nie and Xiaoli Xi, who contribute to his research endeavors. Their combined expertise enhances the development of effective metal separation technologies.
Conclusion
Liwen Ma's contributions to the field of metal separation are noteworthy, showcasing his commitment to innovation and environmental sustainability. His patents reflect a dedication to advancing technology in the recovery of valuable metals, making a significant impact in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile