氨基三亚甲基膦酸在胶磷矿反浮选中的抑制性能及其机制研究  

Depressing capability of ATMP in the reverse flotation of collophanite and its mechanism

作　　者：刘闽新 罗惠华[1] 肖庆渝 王学岚 蔡忠俊 杨稳权[2,3] LIU Minxin;LUO Huihua;XIAO Qingyu;WANG Xuelan;CAI Zhongjun;YANG Wenquan(School of Resources&Safety Engineering,Wuhan Institute of Technology,Wuhan 430074,China;Yunnan Phosphate Group Co.,Ltd.,Kunming 650600,China;National Engineering and Technology Research Center for Development and Utilization of Phosphorus Resources,Kunming 650600,China)

机构地区：[1]武汉工程大学资源与安全工程学院,湖北武汉430074 [2]云南磷化集团有限公司,云南昆明650600 [3]国家磷资源开发利用工程技术研究中心,云南昆明650600

出　　处：《生态产业科学与磷氟工程》2025年第3期19-23,77,共6页Eco-industry Science & Phosphorus Fluorine Engineering

基　　金：湖北省揭榜制项目(2021BEC029);湖北省技术创新重大项目(2018ACA153,2022ACA004);武汉工程大学研究生教育创新基金项目(CX2023188)。

摘　　要：以宜昌钙质磷矿为实验对象,采用单一反浮选工艺对乙二胺四亚甲基膦酸钠、羟基乙叉二膦酸四钠、2-膦酸丁烷-1,2,4-三羧酸(PBTCA)、多氨基多醚基亚甲基膦酸、二乙烯三胺五甲叉膦酸、氨基三亚甲基膦酸(ATMP)6种小分子有机膦酸或其盐的抑制效果进行研究。研究结果表明,ATMP对磷矿物的抑制效果较好,其次是PBTCA。介绍ATMP作为浮选抑制剂的抑制机制。采用单一反浮选一次粗选、一次扫选、中矿返回粗选的闭路流程,在磨矿细度≤0.074 mm占比为60.8%,粗选硫酸、ATMP、捕收剂LAA-T用量分别为12、1.0、0.9 kg/t,扫选硫酸用量为3.0 kg/t条件下,获得的精矿w(P_(2)O_(5))、P_(2)O_(5)回收率、w(MgO)分别为31.65%、97.49%、0.75%;尾矿w(P_(2)O_(5))为3.12%。A comparative study is conducted on the inhibitory effects of six small molecule organic phosphonic acids,namely sodium ethylenediaminetetramethyl phosphonate,trisodium hydroxyethyl diphosphonate,2-phosphate-1,2,4-tricarboxylic acid(PBTCA),polyamino polyether methylene phosphonic acid,diethylenetriamine pentamethylphosphonic acid,and amino trimethylene phosphonic acid(ATMP),using Yichang calcium phosphate ore as the experimental object through single reverse flotation.The research results indicate that ATMP has a good inhibitory effect on phosphate minerals,followed by PBTCA.The inhibition mechanism of ATMP is introduced.A closed-loop process is adopted with a single reverse flotation,one coarse selection,one scavenging,middle ore returning to the coarse selection.When the grinding fineness≤0.074 mm accounts for 60.8%,the amount of sulfuric acid,ATMP,collector LAA-T in coarse selection are 12,1.0 and 0.9 kg/t,respectively,and the amount of sulfuric acid added for scavenging is 3.0 kg/t,the obtained concentrate grade,P_(2)O_(5) recovery rate and w(MgO)are 31.65%,97.49% and 0.75% respectively;While the concentration of P_(2)O_(5)in the tailings is only 3.12%.

关 键 词：胶磷矿 反浮选 ATMP 抑制性能 

分 类 号：TD97[矿业工程—选矿]