Location History:
- Hunan, CN (2022)
- Changsha, CN (2024)
Company Filing History:
Years Active: 2022-2024
Title: **Innovative Contributions of Inventor Yongli Li from Hunan, China**
Introduction
Yongli Li, an accomplished inventor based in Hunan, China, has made significant strides in the field of metallurgy with a focus on copper-nickel sulfide ore and molybdenum processing. With a total of three patents to his name, his work emphasizes innovative methods for efficient resource recovery while minimizing environmental impact.
Latest Patents
Among Yongli Li's notable patents are the following:
1. **Method for clean metallurgy of molybdenum** - This invention outlines a process that includes several key steps:
- Roasting molybdenite with calcium to produce calcified molybdenum calcine.
- Leaching this calcine with inorganic acid to yield a molybdenum-containing inorganic acid leachate.
- Extracting molybdenum from the leachate using a cationic extractant to create an organic phase loaded with molybdyl cations.
- Utilizing a hydrogen peroxide solution as a stripping agent to generate molybdenum stripping liquor.
- Finally, heating this liquor to dissociate peroxymolybdic acid to form molybdic acid precipitate, which is subsequently calcined to yield molybdenum trioxide.
This method effectively addresses the challenge of ammonia nitrogen wastewater generation and is also applicable for enriching and recovering rhenium.
2. **Method and system for comprehensive recovery and utilization of copper-nickel sulfide ore** - This invention presents a novel methodology for the recovery of metals from copper-nickel sulfide ore. At normal pressure, it allows for the direct leaching of copper-nickel sulfide ore concentrate or low-grade nickel matte produced by matte smelting. This method achieves a nickel, cobalt, and iron leaching rate exceeding 99%, while hardly leaching copper, thus simplifying the copper-nickel separation process and maintaining noble metals within the leaching slag.
Career Highlights
Yongli Li is affiliated with Central South University, a prominent institution known for its research and innovation in materials science and metallurgy. His contributions not only highlight his innovative spirit but also demonstrate a commitment to sustainable practices in metallurgy.
Collaborations
In his innovative journey, Yongli Li collaborates with esteemed coworkers such as Zhongwei Zhao and Xuheng Liu. Together, they advance research and development initiatives that further enhance the efficiency and efficacy of metallurgical processes.
Conclusion
Yongli Li stands as a testament to the power of innovation in metallurgy. His patents not only reflect his dedication to advancing the field but also emphasize the importance of sustainable practices. Through his work at Central South University and collaborations with his colleagues, Yongli Li continues to pave the way for future discoveries and improvements in resource recovery and utilization.