Preparation of acetylacetone cobalt

Abstract

Production of cobalt acetylacetone is carried out by reacting soluble ceramic cobalt blue solution with NAOH solution to generate cobaltous hydroxide deposit, and adding into acetylacetone to generate cobaltous acetylacetone crystal at 130 Deg C.. It achieves simple process, higher production efficiency and recovery rate.

Description

Technical field:

[0001] The invention relates to a method for preparing cobalt acetylacetonate by directly adding acetylacetone to a reaction mixture of a soluble cobalt salt solution and an alkali solution for reaction. technical background:

[0002] Cobalt acetylacetonate is a precious metal organic coordination compound, which can be dissolved in an organic solvent to prepare an organic impregnation solution to impregnate a porous carrier to prepare a highly dispersed cobalt catalyst. Because the catalyst prepared by organic solution impregnation method has high activity, cobalt acetylacetonate has been widely used in the field of catalysis.

[0003] Document [1] US Patent USP 20040127690 reports a method for preparing cobalt acetylacetonate. The method is to first react the soluble cobalt salt solution with NaOH solution to form cobalt hydroxide precipitate, then fully wash the precipitate to completely remove the adsorbed alkali, and finally use pure cobalt hydroxide s...