METHOD OF PRODUCTION OF IRON (III) COMPLEX WITH THREE ANIONS OF SALICYLIC ACID

摘要

FIELD: technology of production of iron and salicylic acid complexes used in various fields of engineering and medicine. ^ SUBSTANCE: proposed iron (III) complex with three anions of salicylic acid is produced due to interaction of iron and its alloys with salicylic acid dissolved in dimethyl formamide in vertical bead-type mill provided with high-speed mechanical blade-type agitator at bubbling of air and spontaneous heating of reaction mixture to 80-90C. Iron is presented in form of steel or cast-iron ferrule over entire height of bead-type mill, steel shaft and blade of mechanical agitator, as well as in form of iron powder, fraction of broken cast iron, broken steel chips or cast-iron shot. Process is completed at accumulation of iron salts in reaction mixture of 1.12-1.30 mole/kg; 95% of these salts are in target compounds of iron (III). Hot suspension is filtered immediately and filtrate is cooled down for crystallization of main mass of iron (III) complex. Precipitated product is filtered and is directed for re-crystallization, if necessary. Filtrate is returned for repeated process. ^ EFFECT: updated technology; high yield of product. ^ 2 ex