对物样进行焙烧烧结试验。
该方法是将金精矿加入硫化钠后进行焙烧预处理，可有效地提高金、银、铜的回收率。
The method that the gold concentrate adding sodium sulfide is roasted could effectually raised the recoveries of gold, silver and copper.
介绍一种用于铁矿直接还原的台车连续炉，含碳球团料层铺在台车上并通过炉膛进行焙烧和还原。
The paper introduces a continuous car type furnace for direct reduction of iron ore. Coal-containing iron ore pellets are laid on cars and carried to pass through furnace to be heated and reduced.
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