Gary W Combs

Title: Innovations of Gary W. Combs

Introduction

Gary W. Combs is a notable inventor based in Blue Springs, MO (US). He has made significant contributions to the field of chemistry, particularly in the production of thiocarbohydrazide. With a total of 3 patents to his name, Combs has demonstrated a commitment to advancing chemical processes.

Latest Patents

One of his latest patents is a process for the production of thiocarbohydrazide (TCH) that does not require expensive measures to remove hydrazine. In this innovative process, hydrazinium dithiocarbazinate is reacted with an amine other than hydrazine or a strong base, optionally in the presence of water. It is preferred that a sulfur suppressing compound also be included in the reaction mixture. The precipitated TCH is then removed from the reaction mixture, leaving a mother liquor. Hydrazinium dithiocarbazinate may subsequently be added to the mother liquor, allowing TCH to precipitate and be readily recovered. Another patent involves a method for producing TCH by reacting carbon disulfide and hydrazine in the presence of a mercaptan at elevated temperatures. The TCH is extracted from the reaction mixture, and the mother liquor is treated further to form HDTC, which is then reacted to produce TCH, allowing for the recycling of the mother liquor without a reduction in TCH yield.

Career Highlights

Gary W. Combs is associated with Mobay Corporation, where he has applied his expertise in chemical processes. His work has contributed to advancements in the production methods of important chemical compounds.

Collaborations

Some of his notable coworkers include Dennis E. Jackman and Dietmar B. Westphal, who have collaborated with him on various projects.

Conclusion

Gary W. Combs is a distinguished inventor whose innovative processes in the production of thiocarbohydrazide have made a significant impact in the field of chemistry. His contributions continue to influence advancements in chemical manufacturing.