Company Filing History:
Years Active: 1993-1996
Title: The Innovations of Yaakov Shmueli
Introduction
Yaakov Shmueli is a notable inventor based in Beer-Sheva, Israel. He has made significant contributions to the field of chemical engineering, particularly in the development of processes related to diazinon, a widely used pesticide. With a total of two patents to his name, Shmueli's work has had a considerable impact on agricultural practices.
Latest Patents
Shmueli's latest patents focus on the innovative processes for preparing diazinon. The first patent describes a method where diazinon is synthesized by converting hydroxypyrimidine into its potassium salt. This is achieved by reacting it with potassium carbonate in an organic solvent after removing water through azeotropic distillation. The resulting non-aqueous salt is then reacted with diethyl thiophosphoryl chloride to recover the diazinon formed. The process emphasizes using a quantity of potassium carbonate that is less than molar, ideally in a ratio ranging from 0.55 to 0.75. The second patent outlines a similar process for the manufacture of diazinon, highlighting the use of either MIBK or an aliphatic hydrocarbon containing 1-20% MEK as the solvent.
Career Highlights
Yaakov Shmueli is currently employed at Makhteshim Chemical Works Ltd., a company known for its advancements in agricultural chemicals. His work at the company has allowed him to focus on innovative solutions that enhance the efficiency and effectiveness of chemical processes in agriculture.
Collaborations
Shmueli collaborates with Elkana Gurfinkel, a fellow professional in the field. Their partnership has contributed to the development of new methodologies and improvements in chemical processes.
Conclusion
Yaakov Shmueli's contributions to the field of chemical engineering, particularly through his patents on diazinon, showcase his innovative spirit and dedication to improving agricultural practices. His work continues to influence the industry and highlights the importance of research and development in creating effective chemical solutions.