METHOD OF PRODUCTION OF THE FORMIATE OF MANGANESE (II) Russian patent published in 2008 - IPC C07C53/06 C07F13/00 

FIELD: chemical industry; methods of production of the manganese salts with the organic acids.

SUBSTANCE: the invention is pertaining to production of the manganese salts with the organic acids in particular, to the salt of the divalent manganese and formic acid. The method is exercised by interaction of manganese, its oxides in the state of the highest valence with the formic acid solution in the organic solvent in the presence of iodine as the stimulating additive. The production process is conducted in the bead grinder of the vertical type having the revertive cooler-condenser, the high-speed paddle stirrer and the glass beads of in the capacity of the grinding agent loaded in the mass ratio to the loading of the liquid phase as (1÷2): 1. The liquid phase consists of the formic acid solution in the organic solvent. The concentration of the acid is taken within the range of 3.5÷10.8 mole/kg. In the loaded liquid phase they dissolve the stimulating additive of iodine in the amount of 0.025-0.100 mole/kg of the liquid phase. The ratio of the masses of the liquid phase and the total of the metallic manganese and the manganese oxide are as(4.9÷11):1. The molar ratio of the metal and the oxide in the loading is as (1.8÷2.,2):1. The metal and the oxide are loaded the last. It is preferable in the capacity of the dissolvent to use the butyl alcohol, ethyl acetate, ethylene glycol, 1.4-dioxane, dimethyl formamide. The production process is started and conducted at the indoor temperature up to practically complete(consumption of the whole loaded manganese oxide. Then the stirring is stopped, the suspension of the salt is separated from the beads and the nonreacted manganese and after that conduct filtration. The filtrate and the nonreacted manganese are returned into the repeated production process, and the filtered out settling of the manganese salt is exposed to purification by recrystallization. The technical result of the invention is - simplification of the method at usage of accessible reactants.

EFFECT: the invention ensures simplification of the method at usage of accessible reactants.

16 ex, 2 tbl