有机膦酸PBTCA在胶磷矿反浮选脱镁中的抑制性能研究
Research on depressing capability of organophosphonic acid PBTCA in the reverse flotation of magnesium from collophanite
肖庆渝 1罗惠华 1刘闵新 1王学岚 1蔡忠俊 2杨稳权3
作者信息
- 1. 武汉工程大学 资源与安全工程学院,湖北 武汉 430074
- 2. 武汉工程大学 资源与安全工程学院,湖北 武汉 430074;云南磷化集团有限公司,云南 昆明 650600;国家磷资源开发利用工程技术研究中心,云南 昆明 650600
- 3. 云南磷化集团有限公司,云南 昆明 650600;国家磷资源开发利用工程技术研究中心,云南 昆明 650600
- 折叠
摘要
为了研究小分子有机膦酸2-膦酸丁烷酸-1,2,4-三羧酸(PBTCA)与磷酸的反浮选抑制性能,以宜昌磷矿为研究对象,采用单一反浮选工艺进行实验研究.结果表明,小分子有机膦酸PBTCA具有较强的选择抑制性能.原矿的磨矿细度为＜0.074 mm颗粒占比60.8%,采用单一反浮选一次粗选一次扫选中矿顺序返回粗选的闭路流程,粗选的硫酸、PBTCA、捕收剂LAA-D用量分别为12.0、1.0、0.9 kg/t,扫选硫酸用量为1.0 kg/t,获得的精矿w(P2O5)、回收率分别为31.14%、96.04%;精矿w(MgO)为0.85%,尾矿w(P2O5)仅为5.06%.说明在浮选过程以PBTCA为抑制剂,抑制性能优于磷酸,采用PBTCA作为抑制剂不仅提高了选矿指标,且药剂用量较低.
Abstract
In order to study the depressing capability of small molecule organic phosphonic acid 2-phosphonic acid butane-1,2,4-tricarboxylic acid(PBTCA)and phosphoric acid,the reverse flotation process is used for experimental research until.The experimental results show that small molecule organophosphonic acid PBTCA has strong selective depressing capability.After milled to a fineness of＜0.074 mm accounting 60.8%,the pulp is processed by a single reverse flotation process,using once roughing once sweeping process the sequence ore returns to the closed-circuit process,the dosage of sulphuric acid,PBTCA,LAA-D optimized respectively at 12.0,1.0 and 0.9 kg/t added to roughing,the amount of sulphuric acid added to sweeping for 1.0 kg/t,and the obtained concentrate P2O5 content and recovery rate are 31.14%and 96.04%,respectively;The MgO content in the concentrate is 0.85%,and the P2O5 content in the tailings is only 5.06%.The use of PBTCA has better depressing capability than phosphoric acid.The use of PBTCA as a depressant not only improves the beneficiation index,but also reduces the dosage of reagents.
关键词
胶磷矿/反浮选/PBTCAKey words
collophanite/reverse flotation/PBTCA引用本文复制引用
出版年
2024
NETL
NSTL
万方数据