Wanjin Yu

Title: Wanjin Yu: Innovator in Chemical Synthesis

Introduction

Wanjin Yu is a notable inventor based in Zhejiang, China. He has made significant contributions to the field of chemical synthesis, particularly in the preparation of specialized compounds. With a total of three patents to his name, his work demonstrates a commitment to innovation and efficiency in chemical processes.

Latest Patents

Wanjin Yu's latest patents include a method for preparing 2,3-dichloro-5-trifluoromethylpyridine with high selectivity. This method involves conducting the reaction at a temperature of 100 to 150 degrees Celsius and a pressure of 0.5 to 5.0 MPa, using catalysts such as supported metal chloride, supported zeolite molecular sieve, and supported heteropolyacid. The process boasts advantages such as high selectivity for the desired product, efficient utilization of chlorine gas, and reduced environmental impact. Another significant patent is for a method of preparing 2-chloro-5-trifluoromethylpyridine, which includes a two-step chlorofluorination and chlorination reaction. This method emphasizes the use of readily available and low-cost raw materials, ensuring safe operation and high yield.

Career Highlights

Wanjin Yu has worked with prominent companies such as Zhejiang Lantian Environmental Protection Hi-tech Co., Ltd. and Zhejiang Research Institute of Chemical Industry Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to advancements in chemical technology.

Collaborations

Wanjin Yu has collaborated with notable colleagues, including Shengda Lin and Minyang Liu. Their joint efforts have furthered research and development in the field of chemical synthesis.

Conclusion

Wanjin Yu's innovative methods and dedication to improving chemical processes have established him as a significant figure in the industry. His contributions continue to influence the field of chemical synthesis positively.