Jian Li

Title: Innovations of Jian Li in Isocyanate Preparation

Introduction

Jian Li is a notable inventor based in Lanzhou, China. He has made significant contributions to the field of chemical engineering, particularly in the preparation of isocyanates. His innovative methods have the potential to enhance production efficiency and product yield in various applications.

Latest Patents

Jian Li holds a patent for a method titled "Method for preparing isocyanates by liquid-phase thermal cracking." This invention discloses a process that utilizes a reaction-rectification thermal cracking reactor. The method employs a catalyst composition that includes a superfine powder metal oxide catalyst and an ionic liquid. The process involves liquid-phase thermal cracking of an alkyl or aryl dialkylurethane or multialkylurethane, with a reaction time of 0.5-3 hours at temperatures ranging from 160-220°C and an absolute pressure of 1000-8000 Pa. This innovative approach results in high yields of target products, with yields exceeding 85% for various isocyanates such as HDI, MDI, TDI, HMDI, NDI, and IPDI.

Career Highlights

Jian Li is affiliated with the Chinese Academy of Sciences, where he conducts research and development in chemical processes. His work focuses on improving the efficiency and effectiveness of chemical reactions, particularly in the production of valuable compounds like isocyanates.

Collaborations

Jian Li has collaborated with esteemed colleagues, including Youquan Deng and Xiaoguang Guo. These partnerships have fostered a collaborative environment that enhances research outcomes and innovation.

Conclusion

Jian Li's contributions to the field of isocyanate preparation demonstrate his commitment to advancing chemical engineering. His innovative methods not only improve production efficiency but also contribute to the development of sustainable practices in the industry.