Specific Features of the Formation of the Disperse Polymetallic System Fe–Al–Mo–W in Aqueous Solutions

The coreduction of Fe(III), MoO , and WO ions in chloride-containing aqueous solutions in the presence of 2-hydroxypropane-1,2,3-tricarboxylic acid on disperse aluminum suspended in the solution was studied. It was shown that the coprecipitation of molybdenum, tungsten and elemental iron proceeds during the reduction process; it was estimated that the precipitation of molybdenum prevails over the precipitation of tungsten. It was found that the formation of the deposit takes place on the surface of the aluminum particles; the shape and size of the initial aluminum matrix are preserved. It was experimentally found that the presence of the tungstate ions is preferable for the formation of particles with a smoother surface; the corresponding metals in the form of Fe + Mo and Fe + W solid solutions are present in the synthesized polymetallic disperse samples as well as elemental iron and aluminum.