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经互会成员国的锌产量有90％是用湿法生产的(包括资源综合利用所产)。锌的总回收率达95～97％,企业的资源综合利用率达95.5％,硫的利用率为93.5％,稀有元素的提取正在得到不断完善。 富氧空气(含O_226～29％)的广泛应用,使锌精矿焙烧过程得到大大强化,并提高了焙砂质量和出炉烟气中SO_2浓度。为了利用烟气中的余热,设置了余热锅炉或汽化冷却装置。
90% of zinc production in the member countries of the ECA is produced by wet methods (including those produced by comprehensive utilization of resources). The total zinc recovery rate of 95-97%, the comprehensive utilization of resources enterprises reached 95.5%, sulfur utilization rate of 93.5%, the extraction of rare elements are being constantly improved. The extensive application of oxygen-enriched air (including O_226 ~ 29%) greatly enhances the roasting process of zinc concentrate and improves the quality of calcine and the SO_2 concentration in flue gas. In order to utilize the waste heat in the flue gas, a waste heat boiler or a vaporization cooling device is provided.