A METHOD FOR PREPARING ACETYLACETONE AND IRON (III) ACETYLACETONATE BASED ON THE USE OF DOMESTIC RAW MATERIALS FOR THE CREATION OF SMALL-SCALE MANUFACTURE
A method for producing acetylacetone is proposed. At the first stage sodium acetylacetonate is synthesized with the use of sodium butylate, butylacetate and acetone as starting materials taken in a molar ratio of 1: 4: 1. The reaction mixture is held at a temperature of about 80 °С for 5,4 hours. The precipitated sodium acetylacetonate is filtered off and acidified to yield acetylacetone which is then separated by fractional rectification under atmospheric pressure. It is proposed to prepare iron (III) acetylacetonate by the treatment of aqueous solution of sodium acetylacetonate with iron (III) chloride. The orange-red precipitate formed is rinsed with water and petroleum ether. If required, the product is recrystallized from ethanol. Solvents can be recycled after regeneration.