Ammonium paratungstate(APT)is an intermediate product in tungsten smelting and plays an important role in the entire tungsten industry chain as a link between the past and the future.This article outlines the widely used APT production process routes in industry,explaining their basic principles and industrial application effects.The mechanisms,advantages,and disadvantages of different processes in three important stages were analyzed and compared:decomposition of tungsten raw materials,purification of high-purity ammonium tungstate solution,and APT production.Furthermore,we introduced the industrial treatment process of tungsten wastewater,with a focus on analyzing the removal methods of ammonia nitrogen and arsenic in wastewater.Finally,the problems and shortcomings of existing industrial production APT processes were discussed,along with potential future development directions and research priorities for APT industrial production and the tungsten smelting industry.
维普
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