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首页> 外国专利> Pyrometallurgical treatment of non-ferrous heavy metal ores - in furnace where gas contg. specific amt. of oxygen is blow into slag contg. sulphide(s) and oxide(s)

Pyrometallurgical treatment of non-ferrous heavy metal ores - in furnace where gas contg. specific amt. of oxygen is blow into slag contg. sulphide(s) and oxide(s)

机译：有色重金属矿石的火法冶金处理-在煤气连续的炉子中。具体的amt。氧气被吹入炉渣中。硫化物和氧化物

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A furnace is used to melt the ore or other raw material and form a heterogeneous melt contg. a sulphide- and oxide- phase under a molten slag. Pneumatic mixing and oxidn. of the melt is achieved by injecting a gas (1) contg. min. 35% O2 into the melt at a rate of 200-2000 Nm3/hour and per m2 of the horizontal cross-section of the bath. The result is the formation of an upper layer (3) which is pneumatically mixed; and a lower, quiet layer formed by slag (4) above a layer of matte (5) or crude metal (34); each prod. is tapped separately from the furnace. Natural gas is pref. blown into layer (3) as a fuel or instead of natural gas, liq. fuel, coal dust, or lumps of coal or coke may be used. Useful for the winning of Cu, Ni, Pb and Zn from ores, concentrates etc.
机译：熔炉用于熔化矿石或其他原料并形成异质熔体。熔渣下的硫化物和氧化物相。气动混合和氧化。熔体的注入是通过注入一种气体（1）来实现的。分钟熔池中水平横截面的每m2流量为200-2000 Nm3 /小时，其中有35％的O2进入熔体。结果形成了气动混合的上层（3）。较低的安静层，由无光泽的渣层（4）覆盖在无光泽（5）或粗金属（34）层之上;每个产品。从炉子中单独取出。天然气是首选。作为燃料或代替天然气而被吹入层（3）。可以使用燃料，煤尘或块状煤或焦炭。有助于从矿石，精矿等中获取铜，镍，铅和锌。

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