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Extraction Molybdenum Methods from Tungsten Molybdenum Mixture and Mixture of Molybdenum and Other Metals

This article will briefly describe some simple methods to extract molybdenum from tungsten molybdenum mixture and mixture of molybdenum and other metals. Extracted molybdenum from tungsten molybdenum ore is research focus of molybdenum extraction, the following will simple introduce some methods of  tungsten and molybdenum separation and molybdenumextraction.

1. Recovering tungsten and molybdenum from phosphorus ore: the phosphorus ore was decomposed by 2~5mol/L acid, after that, to process liquid-solid separation, thereby separating the molybdenum and tungsten.

2. Separating tungsten and molybdenum from the mixed solution of tungstate and molybdate: to adjust tungstate and molybdate mixture’s pH value, and then added the precipitating agent so that it will reacts preferentially with the tungsten to produce precipitate. After solid-liquid separation can obtain molybdate solution and rich-tungsten slag.

3. Using tungsten hydrometallurgy to separate tungsten and molybdenum from mixed ammonium salt solution of tungsten and molybdenum: the vulcanizing agent is added to tungsten and molybdenum mixed ammonium solution and after reaction be processed thiosulfate treatment.

4. Depth Separated molybdenum and tungsten from mixture solution containing high content molybdenum and tungsten: Firstly, the pH was adjusted to 6.5~8.5, and then using exchange column of alkalescence anionexchange resin exchange resin to adsorb so that it can separate tungsten and molybdenum.

Several methods of  molybdenum extraction from mixture of molybdenum and other metals are as follows:

1. Recovered molybdenum form aluminium base containing molybdenum waste slag: mixing aluminium base with NaOH solution and Na2CO3 evenly and then it be sintered in rotary kiln. After that it was digested by alkaline correction liquor, solid-liquid separation to obtain a crude liquid sodium aluminate and red mud residue. Finally, using resin adsorbs molybdenum in circulating mother liquor of Bayer liquor production system, thereby recovering molybdenum.

2. Extracted molybdenum from molybdenum copper mixture: heating molybdenum copper mixture form the molten matte to molybdenum copper matte. Add bubbling air or oxygen-enriched air into copper molybdenum matte for blowing, then after collecting dust in recovering MoO3.

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