Richard M Dollard

Title: Richard M Dollard: Innovator in Chemical Processes

Introduction

Richard M Dollard is a notable inventor based in W. Seneca, NY (US). He has made significant contributions to the field of chemical processes, holding a total of two patents. His work focuses on the purification and manufacture of 4,4'-dihydroxydiphenyl, a compound with various industrial applications.

Latest Patents

Dollard's latest patents include a process for the purification of 4,4'-dihydroxydiphenyl. This process involves contacting a solution of 4,4'-dihydroxydiphenyl alkali metal salt with activated carbon, followed by the removal of the activated carbon and acidification of the solution. This method effectively converts the alkali metal salt to water-insoluble 4,4'-dihydroxydiphenyl, ensuring that the final product contains less than 0.45 weight percent of 4-monohydroxydiphenyl impurity. Additionally, he has developed a process for the manufacture of 4,4'-dihydroxydiphenyl, which entails acidifying an alkali metal salt of the compound. This innovative approach allows for the preparation of the compound using low molar ratios of hydroxide to alkali metal diphenyl 4,4' disulfonic acid.

Career Highlights

Richard M Dollard is associated with Buffalo Color Corporation, where he has applied his expertise in chemical processes. His work has contributed to advancements in the production and purification of important chemical compounds.

Collaborations

Dollard has collaborated with notable coworkers, including Walter R Demler and Krishen L Nagpal. Their combined efforts have furthered the development of innovative chemical processes.

Conclusion

Richard M Dollard's contributions to the field of chemical processes, particularly in the purification and manufacture of 4,4'-dihydroxydiphenyl, highlight his role as an influential inventor. His patents reflect a commitment to innovation and excellence in chemical engineering.