METHOD OF PREPARING 2-HYDROXYARYL ALDOXIME Russian patent published in 1999 - IPC

Abstract RU 2124500 C1

FIELD: hydrometallurgical recovery of metals from metallic ores. SUBSTANCE: claimed method comprises reacting hydroxyl amine with 2-hydroxyaryl aldehyde in the presence of metal of group II, group III, group IVA of Periodic table under such conditions when 2-hydroxyaryl aldehyde is in at least partially in the form of salt and/or complex of metal from group II, III, IVA or VIA of Periodic table. Use of 2-oxyaryl aldehyde partially in the form of salt and/or complex compound accelerates preparation of 2- hydroxyary aldoxime. EFFECT: more efficient preparation method. 30 cl, 18 ex

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RU 2 124 500 C1

Authors

Daniel' Levin

Dates

1999-01-10—Published

1993-08-10—Filed