农用硫酸锌主要用于农业生产,可加入复合肥中,也可单独使用。在我国沿海及其它地区,土壤普遍缺锌,每年需大量锌肥,但国内产量甚少,远不能满足需求,因此,生产硫酸锌有很好的市场前景,同时,农用硫酸锌稍加精制,即可作为饲料添加剂和工业硫酸锌使用。本工艺采用空气氧化法(需加入少量MnO_2)、两次浸取工艺流程,制取的七水硫酸锌白色晶体含量达ZnSO_4.7H_2O≥98%。本工艺具有投资少、设备易于制作,成本低的特点。 Agricultural zinc sulfate is mainly used for agricultural production. It can be added to compound fertilizers and can also be used alone. In China’s coastal areas and other areas, the soil is generally deficient in zinc, a large amount of zinc fertilizer is needed every year, but the domestic production is very small, far from meeting the demand. Therefore, the production of zinc sulfate has a good market prospect. At the same time, agricultural zinc sulfate is refined slightly. It can be used as feed additive and industrial zinc sulfate. The process uses air oxidation method (need to add a small amount of MnO2), two leaching process, the prepared white zinc sulfate heptahydrate crystal content of ZnSO_4.7H_2O ≥ 98%. The process has the characteristics of low investment, easy production of equipment, and low cost.