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Start Over Author "Aleksey S. Antipov" Journal chimica techno acta
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1. Technology for the industrial production of K3 series vitamins based on menadione

Author

Aleksey S. Antipov, Vasily A. Nizov, and Anna Yu. Antipova

Subjects
vitamin k3, methyl-naphalenes, cr(vi)-compounds, menadione, industrial scale, Chemistry, QD1-999
Abstract

An improved technology for the industrial production of K3 series vitamins based on menadion is reported. The procedure involves the Cr(VI)-promoted oxidation of the corresponding methyl-naphtahelenes with the following purification by precipitation/recrystallization. The best results were obtained under the process temperature between 20-40 °C, solution pH after dilution of MNB in a range of 5.5–5.7, and MNB content in initial solution of 25-30%.

Published
2020
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