锶渣的性质及其利用方式

Properties and Utilization of Strontium Slag

锶渣主要产生于碳酸锶生产的浸取工艺,是浸取后未反应的矿石和煤的混合物。据统计,我国锶渣累计量已达4500万t,但利用途径有限。因此,本文重点介绍了碳酸锶生产工艺和锶渣利用方式。锶渣可以用于铺路和生产水泥,也可以焙烧后作为吸附剂处理含铬含磷废水。锶渣的锶含量较高,人们可以合理选择浸出工艺来制备锶盐。

The slag is mainly produced in the leaching process of strontium carbonate production,and is a mixture of unreacted ore and coal after leaching.According to statistics,the cumulative amount of slag in China has reached 45 million tons,but the utilization route is limited.Therefore,this paper focuses on the production process of strontium carbonate and the use of slag.The slag can be used for paving and producing cement,and can also be used as an adsorbent to treat chromium-containing phosphorus-containing wastewater after calcination.The strontium content of the slag is relatively high,so people can reasonably choose the leaching process to prepare the strontium salt.