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K. Vadasdi A. Kele I. Szilassy R. Ol h L. Sü meghy T. Chik n P. rvay 《International Journal of Refractory Metals and Hard Materials》1994,12(6):369-377
The basic hydrometallurgical operation of the tungsten filament manufacturing, the molybdenum mandrel wire dissolving has been reviewed from environmental and hygienic aspects presenting the published efforts for streamlining of the traditional H2SO4---HNO3 mixture based process.
The fundamentals of a new environment-preserving and hygienic process based on H2O2-catalyst mixture are outlined as well as its development and industrial implementation to a zero effluent discharging process and equipment consisting of selective molybdenum dissolving from tungsten coils and the recovery of the dissolved molybdenum and process water.
Some desirable development potentials of the new process are sketched considering scientific, technical, economical and environmental aspects. 相似文献
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