Method for preparing ferric acetyl acetonade

Abstract

The invention discloses a method for preparing ferric acetyl acetonade, which comprises the following steps of: adding isopropanol or methylbenzene serving as a solvent into a reactor, and raising the temperature to between 50 and 60 DEG C; adding iron powder into the reactor with stirring to make the iron powder uniformly dispersed in the isopropanol or methylbenzene; adding a protonic acid catalyst into the reactor, dripping diacetone, and controlling the temperature to between 50 and 60 DEG C until the dripping is finished; and raising the temperature of the reactor, adding oxygen into thereactor through an oxygenation device, keeping the temperature of between 50 and 90 DEG C, reacting for 3 to 5 hours, filtering, cooling, removing the solvent, and drying to obtain the product. The method has the advantages of high purity and fine particles of the product, the yield rate of 90 to 95 percent, less production steps, and simple process. Solution synthesis is adopted, mother liquor can be circularly used or recycled, the environmental protection requirement is met, the energy is saved, and the cost can be greatly reduced.

Description

technical field [0001] The invention relates to the field of chemistry, in particular to a method for preparing iron acetylacetonate. Background technique [0002] Iron acetylacetonate is mainly used as resin crosslinking agent, curing accelerator, rubber additive, petroleum cracking catalyst, fuel oil additive and organic synthesis catalyst, etc., and has a wide range of application fields. In recent years. With the development of my country's economy, the widespread use of agricultural mulch and domestic plastics has brought serious environmental pollution. As a high-efficiency photosensitizer for plastic photodegradation, iron acetylacetonate has been paid more and more attention at home and abroad, and has become the main subject of new market research. The research of this product is of great significance in industrial production and environmental chemistry. [0003] The common preparation method of iron acetylacetonate in the prior art is as follows: take acetone and...

AI Technical Summary

Problems solved by technology

The weak point of this preparation method is (1) this production method productive rate is low, has hydrochloric acid to generate in the reaction, handles badly and can pollute environment; (2) needs recrystallization before obtaining product, and its process is complicated, and production efficiency Low, the productive rate is only 80~85%; (3) adopt water as solvent, its consumption is big, aftertreatment is difficult, easily causes adverse effect to environment

[0004] "Shanxi Chemical Industry" Volume 22, Issue 1 (Pages 7-8), Ren Xiaodong, Ma Guozhang and others disclosed the preparation method of iron acetylacetonate, using a three-necked flask with a stirrer, reflux condenser and water separator Add acetylacetone, ferric oxide and catalyst in proportion, heat up to the reflux temperature under the conditions of constant stirring and vacuuming, and reflux for 2 hours. Anhydrous is formed as the reaction terminal reactant for cooling and crystallization, and the crude product is filtered. The product is obtained after recrystallization, and the yield is 80-82%. The product obtained by this method needs to be recrystallized, and the product yield is not high, and it needs to be carried out under vacuum conditions, and the equipment requirements are high.