尾矿的低碳活化及产品综合开发  

Low carbon activation of tailings with comprehensive product development

作　　者：卫尤明 廖宗文[1] 毛小云[1] WEI Youming;LIAO Zongwen;MAO Xiaoyun(College of Natural Resources and En vironment,South China Agricultural University,Guangzhou Guangdong 510642,China)

机构地区：[1]华南农业大学资源环境学院,广东广州510642

出　　处：《化工矿物与加工》2020年第9期54-58,共5页Industrial Minerals & Processing

基　　金：国家重点研发计划(2018YFD0200303);广东省科技计划项目(2017A050501029)。

摘　　要：针对尾矿及工业副产废渣制肥的原料养分含量低、选矿能耗高等问题,开发出了节能低碳的矿物活化技术。该技术不需要选矿,不排放尾矿、磷石膏、氧化镁渣等,可以用于处理各类尾矿及工业副产废渣。添加活化剂可以使各类尾矿和工业副产废渣转化成活化磷、钾、硅等系列中微肥产品和土壤调理剂。对尾矿和工业副产废渣活化的技术原理、工艺、产品肥效及市场前景等进行了较为详细的探讨,以期为我国堆存数量巨大的各类尾矿及工业副产废渣的综合开发利用提供参考。In order to solve problems of low nutrients contained in the raw material composed of tailings and industrial slags as by-product for fertilizer production and of high energy consumption for beneficiation operation, a mineral activation technology featuring energy-saved and low carbon emission was developed.With the novel technology, neither beneficiation was required, nor some industrial wastes including tailings,phosphogypsum, magnesium oxide bearing slags was discharged, even various tailings and industrial slags can be handled or to be converted into a series of activated fertilizer products containing secondary nutrients of elements P, K, Si and micronutrients or into soil conditioning reagent by addition of activators. The technical theory, process, effect and market prospect of the fertilizer products were discussed in details and to be used as the reference for comprehensive utilization of a variety of tailings and industrial slags stockpiled in China.

关 键 词：尾矿 工业副产废渣 活化 中微肥 土壤调理剂 

分 类 号：TD926.4[矿业工程—选矿] X754[环境科学与工程—环境工程]