MUMBAI, India, June 6 -- Intellectual Property India has published a patent application (202517038126 A) filed by Public Joint Stock Company Sibur Holding (Pjsc Sibur Holding), Tyumenskaya oblast, Russia, on April 21, for 'process for producing a solution of alkyllithium.'
Inventor(s) include Lipskih, Maksim Vladimirovich; Babin, Ivan Anatolevich; and Kulchakovskii, Petr Ivanovich.
The application for the patent was published on June 6, under issue no. 23/2025.
According to the abstract released by the Intellectual Property India: "The invention relates to a process for producing alkyllithium compounds for use as anionic polymerization initiators, as well as in various organic reactions. More particularly, it relates to a process for producing a solution of alkyl lithium by reacting lithium metal having a specific surface area of from 1 to 100 cm2/g with an alkyl halide in an organic solvent medium under conditions of high turbulence, wherein the mole ratio of lithium metal to alkyl halide is from 2.5:1 to 5.5:1. The technical result of the present invention consists in achieving a high yield of alkyllithium using lithium metal with a low specific surface area under conditions of high turbulence and at a mole ratio of lithium metal to alkyl halide of from 2.5:1 to 5.5:1, which is comparable with the alkyllithium yield achieved using fine particles of lithium metal (with a high specific surface area)."
The patent application was internationally filed on Nov. 10, 2023, under International application No.PCT/RU2023/050261.
Disclaimer: Curated by HT Syndication.
