硫酸和磷酸对磷块岩反浮选分选指标的影响  

Effect of H 2SO 4 and H 3PO 4 on separating results of the reverse flotation of phosphorite ores

作　　者：谢恒星[1] 钟康年[1] 

机构地区：[1]武汉化工学院材料工程系

出　　处：《武汉化工学院学报》1999年第1期34-38,共5页Journal of Wuhan Institute of Chemical Technology

摘　　要：以王集磷矿选矿厂正—反浮选工业试验数据为依据，建立了反浮选各单元选别作业的数学模型．模型分析表明，Ｈ２ＳＯ４和Ｈ３ＰＯ４的用量对粗选、扫选（Ⅰ）作业的分选指标的影响存在交互效应，扫选（Ⅱ）作业的分选指标与Ｈ３ＰＯ４用量成线性关系．粗选作业适宜的药剂用量Ｈ２ＳＯ４为１．７０～１．７１ｋｇ／ｔ，Ｈ３ＰＯ４为３．５６～３．６８ｋｇ／ｔ；扫选（Ⅰ）作业适宜的药剂用量Ｈ２ＳＯ４为０．３１～０．７３ｋｇ／ｔ，Ｈ３ＰＯ４为０．３０～０．４３ｋｇ／ｔ；扫选（Ⅱ）作业中Ｈ３ＰＯ４的用量应控制在１．４０ｋｇ／ｔ左右．Mathematical models for unit operations of the second stage flotation (reverse flotation ) in a twostage flotation circuit for phosphorite ores are established based on industrial test data obtained from Wangji Phosphorite Processing Plant,China. The models indicate that there is interaction of H 2SO 4 and H 3PO 4 on separating results of the roughing and the scavenging(Ⅰ), and there is a linear relationship between the results and H 3PO 4 consumption in the scavenging(Ⅱ). The suitable consumption of H 2SO 4 and H 3PO 4 is 1.70～ 1.71 kg/t and 3.56～3.68 kg/t respectively to the roughing , 0.31～0.73 kg/t and 0.30～0.43 kg/t respectively to the scavenging(Ⅰ), and that of H 3PO 4 is about 1.40 kg/t to the scavenging(Ⅱ).

关 键 词：磷块岩 浮选 分选指标 硫酸 磷酸 磷矿 选矿 

分 类 号：TD971.3[矿业工程—选矿] TD923