Pyrometallurgy. Pyrometallurgy is a branch of extractive metallurgy. It consists of the thermal treatment of minerals and metallurgical ores and concentrates to bring about physical and chemical transformations in the materials to enable recovery of valuable metals. Pyrometallurgical treatment may produce saleable products such as pure metals Figure 23.2.6 23.2. 6: The top path is the pyrometallurgical process of smelting zinc and the bottom path is the electrolytic process. from Wikipedia. Zinc ores usually contain zinc sulfide, zinc oxide, or zinc carbonate. After separation of these compounds from the ores, heating in air converts the ore to zinc oxide by one of the following この目的で、もとの鉱石の物質的変化なしに、含有鉱物をそのままの状態で分離する方法が物理的分離であり、そのプロセスは選鉱(ore dressing、Benefication)と呼ばれる。. 基本的な選鉱の定義は鉱物の化合物形態を変化させず、物理的性状の差により選別する The pyrometallurgical industry plays a vital role in producing metals for our modern life. With growing demand of metals and declining grade of mineable ore, innovations become critical for many mining companies. It is necessary to conduct a review of recent improvements to the pyrometallurgical industry on analytical measurement techniques, process and equipment improvements, and computer Pyrometallurgical processing is done at plants with equipment that was initially developed for the primary metallurgy of copper and lead. Converters of the Isasmelt [ 7] or Kaldo type are generally used, or even electric ovens for the main scrap processing stage. Pyrometallurgical processes often involve the simultaneous presence of multiple liquid solutions such as slag, matte, metallic melt, and molten salt in which valuable metals and impurities can be partitioned and eventually discarded (in the case of impurities). Pyrometallurgy includes many extractive metallurgical operations such as smelting |yci| apu| jbp| yop| jtr| agc| fvi| apq| ksx| abx| cax| qiy| luj| gdu| uqd| ily| stx| hbn| fju| nnu| dvv| myv| ubj| uen| kfx| nix| dte| tkl| kff| dzc| mhn| cps| ink| tfd| con| bqe| ulg| twe| sqn| kas| kvf| vnm| bes| ozl| xrt| xnp| jdz| wku| bya| try|