广西某铜冶炼渣协同处理磷矿石生产磷铁的工艺研究

金属矿山 ›› 2025, Vol. 54 ›› Issue (7): 254-259.

广西某铜冶炼渣协同处理磷矿石生产磷铁的工艺研究

李绪泽¹ 　莫新仕²　何贵香^1,3 　赵　义³ 　朱文云¹ 　李中林¹ 　李义兵¹ 　蒋学先^1,3

1. 桂林理工大学材料科学与工程学院,广西桂林 541004;2. 广西南丹南方金属有限公司,广西南丹 547299; 3. 桂林理工大学南宁分校,广西南宁 530001

出版日期:2025-07-15 发布日期:2025-08-14
通讯作者: 何贵香(1973—),女,教授,博士,硕士研究生导师。
作者简介:李绪泽(2001—),男,硕士研究生
基金资助:
广西科技重大专项(编号:桂科 AA22068077);国家自然科学基金-联合基金-重点支持项目(编号:U23A20557)

Research on the Process of Synergistic Treatment of Phosphorus Ore to Produce Ferro-phosphorus by a Copper Smelting Slag in Guangxi

LI Xuze¹ 　 MO Xinshi ² 　 HE Guixiang ^1,3 　 ZHAO Yi³ 　 ZHU Wenyun ¹ 　 LI Zhonglin¹ LI Yibing ¹ 　 JIANG Xuexian ^1,3

1. Department of Materials Science and Engineering,Guilin University of Technology,Guilin 541004,China;2. Guangxi Nandan Nanfang Metal Co. ,Ltd. ,Nandan 547299,China;3. Guilin University of Technology at Nanning,Nanning 530001,China

Online:2025-07-15 Published:2025-08-14

摘要/Abstract

摘要： 铜冶炼渣是一种高铁二次资源,为了解决其堆存所致的众多问题,并实现其高值化综合利用,研究以广西某铜冶炼渣和磷矿石为铁和磷源,开展了碳热还原法合成磷铁试验研究。结果表明,对于 Fe 含量为 46. 28%,主要矿物相为 Fe2 SiO4 、Fe3O4 的铜冶炼渣,以及 P2O5 含量为 33. 41%,主要物相为 Ca5(PO4 )3F 的磷矿石,在原料铁磷质量比为 1. 0、还原剂石墨用量为 1. 0 倍理论值、助熔剂硼砂与原料质量比为 6%、黏合剂甲基纤维素与原料质量比为 0. 4%、体系压力为 0. 1 MPa、温度为 1 600 ℃的情况下,可获得 P、Fe 平均品位分别为 16. 59%和 81. 10%的优质磷铁产品;还原渣的主要物相为 Ca2 SiO4 ,可作为生产水泥的原料,实现资源循环利用。

关键词: 铜冶炼渣　磷矿石　碳热还原　磷铁

Abstract: Copper smelting slag is a kind of secondary resource with high iron,in order to solve many problems caused by its stockpiling and realize its high-value comprehensive utilization,the study carried out a test of synthesizing ferro-phosohorus by carbothermal reduction method using a certain copper smelting slag and phosphorus ore in Guangxi as iron and phosphorus sources. The results showed that for the copper smelting slag with Fe content of 46. 28% and main mineral phases of Fe2 SiO4 and Fe3O4 ,and the phosphorus ore with P2O5 content of 33. 41% and main phase of Ca5(PO4 )3F,the synthesis of ferro-phosphorus by carbothermal reduction method was carried out in the following conditions:the mass ratio of iron and phosphorus in raw material was 1. 0,the dosage of graphite in reduce was 1. 0 times of the theoretical value,the mass ratio of borax,flux,to the raw material was 6%,the mass ratio of binder methylcellulose to the raw material was mass ratio of 0. 4%,system pressure of 0. 1 MPa,temperature of 1 600 ℃ ,P,Fe average grade of 16. 59% and 81. 10% of high-quality ferro-phosphorus products could be obtained,at the same time,reduced slag of the main phase of Ca2 SiO4 ,which could be used as raw materials for the production of cement,and achieve the recycling of resources.

Key words: copper smelting slag,phosphrus ores,carbon thermal reduction,ferrophosphorus

中图分类号:

李绪泽　莫新仕　何贵香, 　赵　义　朱文云　李中林　李义兵　蒋学先, . 广西某铜冶炼渣协同处理磷矿石生产磷铁的工艺研究[J]. 金属矿山, 2025, 54(7): 254-259.

LI Xuze 　 MO Xinshi 　 HE Guixiang , 　 ZHAO Yi 　 ZHU Wenyun 　 LI Zhonglin 　 LI Yibing 　 JIANG Xuexian , . Research on the Process of Synergistic Treatment of Phosphorus Ore to Produce Ferro-phosphorus by a Copper Smelting Slag in Guangxi [J]. Metal Mine, 2025, 54(7): 254-259.

扫码分享