硫化锌精矿氧压浸出过程中硫回收率的影响机制  

Influence Mechanism of Sulfur Recovery during Oxygen Pressure Leaching of Zinc Sulfide Concentrate

作　　者：陈龙义[1] CHEN Longyi(Changsha Engineering and Research Institute Ltd.of Nonferrous Metallurgy,Changsha 410019,China)

机构地区：[1]长沙有色冶金设计研究院有限公司,长沙410019

出　　处：《有色金属（冶炼部分）》2024年第10期106-110,共5页Nonferrous Metals（Extractive Metallurgy)

基　　金：广西重大科技专项项目(桂科AA22068076)。

摘　　要：锌氧压浸出特点是硫化锌精矿直接湿法浸出,硫不进入烟气,而是直接转化成单质硫回收。该工艺生产流程更简单,环境友好,综合能耗低,硫磺产品相对更容易储存、运输及销售。因此该技术的推广应用对锌冶炼行业节能减排乃至碳达峰碳中和目标的实现意义重大。从精矿矿物特征及金属的浸出率、浸出过程中硫元素的酸化率、硫磺结晶过程控制、硫浮选效率以及硫精矿热过滤温度等方面着手,研究其对硫磺回收率的影响机制。Zinc oxygen pressure leaching process is characterized by direct wet oxygen pressure leaching of zinc sulfide concentrate.Sulfur does not enter the flue gas,but is directly converted into elemental sulfur recovery.The production process is simpler,environmentally friendly,low comprehensive energy consumption,and the sulfur products are relatively easier to store,transport and sell.Therefore,the promotion and application of this technology is of great significance to the realization of energy conservation and emission reduction in zinc smelting industry and even the goal of emission peak and carbon neutrality.The effects of mineral characteristics,metal leaching rate,sulfur acidification rate,sulfur crystallization process control,sulfur flotation efficiency and thermal filtration temperature of sulfur concentrate on sulfur recovery were studied.

关 键 词：硫化锌精矿 氧压浸出 硫 回收率 

分 类 号：TF813[冶金工程—有色金属冶金]