Company Filing History:
Years Active: 1990-1991
Title: Sandor Laszlo: Innovator in Chemical Processes
Introduction
Sandor Laszlo is a notable inventor based in Fuzfogyartelep, Hungary. He has made significant contributions to the field of chemical processes, particularly in the preparation of phosphonomethyl compounds. With a total of 2 patents to his name, Laszlo's work showcases his expertise and innovative approach to chemical synthesis.
Latest Patents
Laszlo's latest patents include two important processes. The first patent, titled "Process for preparing N-phosphonomethyl-glycine," relates to an improvement in the synthesis of N-phosphonomethyl-glycine. This process involves the oxidation of N-phosphonomethyl-imino-diacetic acid in an aqueous sulfuric acidic medium using hydrogen peroxide. A key feature of this invention is the utilization of waste acid liquor as the reaction medium, which is formed after the separation of N-phosphonomethyl-glycine. The solution can be diluted with water to achieve a concentration of 12-18 weight % of sulfuric acid and 3-5 weight % of N-phosphonomethyl-glycine.
The second patent, "Process for preparing N-phosphono-methyl-imino-diacetic acid," focuses on a simplified synthesis of N-phosphono-methyl-imino-diacetic acid from the calcium salt of imino-diacetic acid. This process involves heating the calcium salt with concentrated hydrochloric acid at a specific molar ratio and temperature. The resulting imino-diacetic acid hydrogen chloride is then separated, dissolved in water, and reacted with phosphorous acid and formaldehyde to isolate the final product.
Career Highlights
Sandor Laszlo is currently employed at Nitrokemia Ipartelepek, where he continues to develop innovative chemical processes. His work has contributed to advancements in the field and has positioned him as a respected figure among his peers.
Collaborations
Laszlo has collaborated with notable coworkers, including Jeno Pelyva and Csaba Soptei. Their combined expertise has fostered a productive environment for innovation and development in chemical processes.
Conclusion
In summary, Sandor Laszlo is a distinguished inventor whose contributions to chemical synthesis have led to significant advancements in the preparation of phosphonomethyl compounds. His innovative processes and
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