Dongyi Hong

Title: The Innovative Contributions of Dongyi Hong

Introduction

Dongyi Hong is a notable inventor based in Beijing, China. He has made significant contributions to the field of chemical engineering, particularly in the preparation of bisphenol A. His innovative methods have the potential to enhance production efficiency and product quality in the chemical industry.

Latest Patents

Dongyi Hong holds a patent for a method of preparing bisphenol A. This method involves several steps, including transferring phenol and acetone into a reaction zone with a condensation catalyst. After the reaction, a stream containing bisphenol A is obtained and transferred to a rectification zone. This process results in a product fraction primarily containing bisphenol A and phenol. The product fraction is then sent to a crystallization zone to obtain the final bisphenol A product. A key feature of this invention is the cycling of a water-depleted fraction back to the reaction zone, which helps maintain catalytic activity and control reaction temperature, ultimately improving the conversion of acetone and selectivity of the reaction.

Career Highlights

Dongyi Hong is associated with China Petroleum & Chemical Corporation, a leading company in the petroleum and chemical industry. His work has been instrumental in advancing methods for chemical production, showcasing his expertise and innovative thinking.

Collaborations

Dongyi Hong has collaborated with notable colleagues, including Jidong Zhou and Jinlai Qin. Their teamwork has contributed to the successful development of innovative methods in their field.

Conclusion

Dongyi Hong's contributions to the preparation of bisphenol A exemplify the impact of innovation in the chemical industry. His patent reflects a commitment to improving production processes and enhancing product quality. The advancements made by Hong and his collaborators are significant for the future of chemical engineering.