0号锌板跟1号锌板有什么不一样?

2025年01月28日 09:30
有1个网友回答
网友(1):

1#锌代表是含锌大于99.99%的锌锭,0#代表含锌大于99.995%的锌锭。1#锌的杂质铅、铁、镉分别比0#锌高了0.002、0.002、0.001。
锌锭从原矿开始,经过采矿和选矿,得到含锌45%-55%的锌精矿,然后被送入冶炼厂进行冶炼。
选矿:铅锌矿石一般经过选矿富集成精矿进行铅、锌金属产品的冶炼。铅锌矿的选矿过程,根据矿石类型不同选择不同的选矿方法。硫化矿石通常用浮选方法。氧化矿石用浮选或重选与浮选联合选矿,或硫化焙烧后浮选,或重选后用硫酸处理再浮选。对于含多金属的铅锌矿石,一般用磁—浮、重—浮、重—磁—浮等 联合选矿方法。
冶炼:自然界中,硫化锌精矿是炼锌的主要矿物原料,分火法和湿法两大类炼锌方法。火法冶炼包括焙烧、还原蒸馏和精炼三个主要过程,采用竖罐蒸馏、平罐蒸馏、密闭鼓风炉或电炉;密闭鼓风炉是目前主要的火法炼锌设备,占锌总产量的10%左右。
湿法冶炼由于资源综合利用好、单位能耗相对较低、对环境 友好程度高,是当今世界最主要、发展最快的炼锌方法,应用较广,其产量占世界锌总产量的80%以上。火法炼锌所得粗锌采用蒸馏法精炼或直接应用;而湿法炼 锌所得电解锌,质量较高,无需精炼。
湿法炼锌包括传统的湿法炼锌和全湿法炼锌两类。传统的湿法炼锌实际上是火法与湿法的联合流程,是20世纪初出现的炼锌 方法,包括焙烧、浸出、净化、电积和制酸五个主要过程。
上海艾荔艾金属材料,竭诚为你服务。

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