| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to method of producing manganese (II) alcoholates which can be used in different syntheses, in purification of complex multicomponent mixtures from alcohols, in analytical control and in scientific research. The method involves direct reaction of metal with alcohol in a vertical bead mill. The liquid phase used is the corresponding alcohol taken in mass ratio to glass beads of 1:1.5. Manganese is taken in amount of 5.81-43.3 % of the mass of the liquid phase. The process is initiated at room temperature and is carried out while controlling by taking samples and determination of content of manganese (II) compounds until all the loaded metal is virtually exhausted, after which stirring in the glass bead is stopped. The suspension of the reaction mixture is separated from the glass beads and taken for filtering. The alcoholate residue is washed with a liquid phase solvent and taken for purification by recrystallisation, and the filtrate and washing liquid phase with traces of dissolved alcoholate are returned for a repeated process. As a rule, the alcohol used is C1-C5-alcohol with normal and isomeric structure, cyclohexanol, ethyl cellosolve and ethylene glycol. ^ EFFECT: method allows for reaction of manganese with alcohol in conditions where the reaction could have been quantitatively insufficient with respect to the reagent, could have taken place at technically acceptable rates and led to accumulation the main mass of the product in solid phase, which can be easily separated by simple filtering. ^ 2 cl, 2 tbl, 18 ex |
