Majishi Wang

Title: Innovations of Majishi Wang in Polyether Amine Preparation

Introduction

Majishi Wang is an accomplished inventor based in Shaoxing, China. He has made significant contributions to the field of chemical engineering, particularly in the preparation of polyether amines. His innovative methods have the potential to enhance the efficiency and effectiveness of chemical processes.

Latest Patents

Majishi Wang holds a patent for a "System and method for preparing polyether amine by catalytic amination of polyether diol." This patent describes a comprehensive method that includes filling a catalyst into a fixed bed reactor, pressurizing the reactor to 10-13 MPa using hydrogen gas, and raising the temperature to 150-185°C. The method also involves adjusting the temperature of a multi-stage preheater to ensure that the raw material reaches a feeding temperature of 125-135°C. The process allows for the simultaneous feeding of polyether diol, liquid ammonia, and hydrogen gas into the preheater, leading to a continuous catalytic amination reaction. The resulting polyether amine has a total amine value of 28-32 mgKOH/g and is a colorless transparent liquid.

Career Highlights

Throughout his career, Majishi Wang has worked with notable companies such as Zhejiang Huangma Technology Co., Ltd. and Zhejiang Lukean Chemical Co., Ltd. His experience in these organizations has contributed to his expertise in chemical processes and innovations.

Collaborations

Majishi Wang has collaborated with talented individuals in his field, including Yifan Xu and Jiang Yu. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Majishi Wang's contributions to the preparation of polyether amines demonstrate his innovative spirit and commitment to advancing chemical engineering. His patent and career achievements reflect his dedication to improving industrial processes.