METHOD OF PRODUCNG BASIC COPPER (II) ACETATE Russian patent published in 2011 - IPC C07C53/10 

FIELD: chemistry.

SUBSTANCE: method involves reaction of a metal oxide with an acid in a bead mill in the presence of a stimulant. The process takes place in the presence of a liquid phase, the solvent of which is distilled water. Copper oxide is added in amount of 1.8-3.3 mol/kg in molar ratio to acetic acid equal to (1:1.7)-(1:2.1). The stimulant is added in amount of 0.05 mol/kg. Addition is performed in the following sequence: glass beads, liquid phase solvent, acetic acid, stimulant and copper (II) oxide, in molar ratio of the glass beads to the rest of the material equal to (1:1)-(1.5:1). Further, the material undergoes mechanical mixing and the process is carried out while constantly cooling in temperature range of 20-45°C until almost complete conversion of the loaded copper (II) oxide into a salt. Mixing and cooling are then stopped. The suspension of the reaction mixture is then separated from the glass beads. This suspension is mixed with washing water with reaction mixture residue, left for 1-2.5 hours and filtered. The product residue is thoroughly squeezed and taken for purification via recrystallisation, and the filtrate is returned to repeated process.

EFFECT: invention increases output and selectivity of the method of producing copper acetate.

2 cl, 9 ex, 2 tbl