Xi Li

Title: Xi Li - Innovator in Caprolactam Production

Introduction

Xi Li is a notable inventor based in Zhejiang, China. He has made significant contributions to the field of chemical engineering, particularly in the production of caprolactam. With a total of 2 patents to his name, his work has implications for the petrochemical industry.

Latest Patents

Xi Li's latest patents focus on innovative methods for preparing caprolactam. The first patent describes a preparation method that involves contacting cyclohexanone oxime with a catalyst in the presence of ethanol. This process utilizes gas phase Beckmann rearrangement to produce an ethanol solution of crude caprolactam. The subsequent steps include separating impurities and crystallizing the product to obtain a high-purity crystalline caprolactam.

The second patent outlines a refining process for caprolactam, which includes multiple stages of evaporative crystallization and solid-liquid separation. This method aims to enhance the purity of caprolactam through a series of washing and hydrogenation reactions. These innovations are crucial for improving the efficiency and quality of caprolactam production.

Career Highlights

Xi Li is affiliated with the Zhejiang Hengyi Petrochemical Research Institute Co., Ltd. His work at this institute has positioned him as a key player in advancing caprolactam production technologies. His patents reflect a deep understanding of chemical processes and a commitment to innovation in the petrochemical sector.

Collaborations

Xi Li collaborates with esteemed colleagues, including Shibiao Cheng and Songlin Wang. Their combined expertise contributes to the ongoing research and development efforts at the Zhejiang Hengyi Petrochemical Research Institute.

Conclusion

Xi Li's contributions to caprolactam production through his innovative patents demonstrate his significant role in the petrochemical industry. His work not only enhances production methods but also sets a standard for future innovations in the field.