Method for preparing high-grade zinc oxide by treating secondary zinc oxide in rotary kiln

The invention belongs to the technical field of material chemistry, and particularly relates to a method for preparing high-grade zinc oxide by treating secondary zinc oxide through a rotary kiln. The method for preparing high-grade zinc oxide by treating secondary zinc oxide in the rotary kiln comprises the following steps: (1) soaking in an alkali pool; (2) precipitating zinc in an acetic acid tank; (3) soaking in a water pool; and (4) calcining in a rotary kiln. The method is established on the basis of the existing rotary kiln production line, so that the investment cost of secondary treatment is not additionally and excessively increased, the resources of the existing production line can be fully utilized, the utilization rate of the production resources of an enterprise is maximized, the economic benefit is improved, and a high-added-value product is obtained. 本发明属于材料化学的技术领域，具体的涉及一种回转窑处理次氧化锌制备高品位氧化锌的方法。所述回转窑处理次氧化锌制备高品位氧化锌的方法，包括以下步骤：（1）碱池浸泡；（2）乙酸池沉锌；（3）水池浸泡；（4）回转窑煅烧。该方法是建立在现有回转窑生产线基础上，不仅不会额外过多增加二次处理的投入成本