单词 | Renn-Walz process |
释义 | Renn-Walz process [`ren `välts ´prä·sǝs] METALLURGY A method of reclaiming iron and other metals from the waste materials produced in the smelting of zinc and lead ores; this material is brought up to 1000°C in the preheating zone of the kiln by the countercurrent gases, and the oxidized metal vapors are carried off in the flue gases, from which they are subsequently filtered. |
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