铁尾矿酸浸液制备聚氯化铁的试验研究

doi:10.19964/j.issn.1006-4990.2023-0173

Abstract

Abstract:

In order to explore a new approach to the recovery and utilization of iron tailings from an iron ore dressing plant，the experimental process of preparing polymeric iron chloride from the acid leaching solution of the iron tailings was studied，and the self-made polymeric ferric chloride was applied to the coagulation test of kaolin suspension to test the flocculation performance of the product.The experimental results showed that the suitable conditions for polymerization were temperature 40 ℃，pH of 1.0，and polymerization time 3 h.Under these conditions，the alkalinity of synthesized polymerized ferric chloride was 20.91%，which met relevant standards，and the primary and secondary ranking of factors affecting the polymerization process were polymerization temperature，pH and polymerization time.The suitable conditions for coagulation were the dosage of polymeric ferric chloride of 250 mg/L，pH of 7.0，stirring time of 3 min，temperature of 20 ℃ and coagulation time of 60 min.Under these conditions，the turbidity removal rate was 95.54%，and the product had a good turbidity removal effect.

Key words: polyferric chloride, iron tailings, acid leaching solution, polymerization, coagulation

CLC Number:

TK09

HUANG Tao, HUANG Zili, XIAO Shuo, ZHENG Jiemiao, LIU Xiaofeng, WU Jilong. Experimental study on preparation of polyferric chloride from iron tailings acid leaching solution[J]. Inorganic Chemicals Industry, 2024, 56(2): 121-126.

Figures/Tables 13

Fig.1

Table 1

Table 2

Fig.2

Fig.3

Fig.4

Table 3

Table 4

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

References 12

1	刘文博，姚华彦，王静峰，等.铁尾矿资源化综合利用现状［J］.材料导报，2020，34（S1）：268-270.
	LIU Wenbo， YAO Huayan， WANG Jingfeng，et al.Current situation of comprehensive utilization of iron tailings［J］.Materials Reports，2020，34（S1）：268-270.
2	张慧芳，叶秀深，胡耀强，等.氯气吸收液制备聚合氯化铁及其絮凝性能研究［J］.广州化工，2022，50（4）：70-72.
	ZHANG Huifang， YE Xiushen， HU Yaoqiang，et al.Preparation and flocculation performance of polymeric ferric chloride by chlorine absorbed-solution［J］.Guangzhou Chemical Industry，2022，50（4）：70-72.
3	孔德顺，王鲁凤，蒋荣立.氯化铁废液水热法制备聚合氯化铁的实验研究［J］.化工技术与开发，2020，49（7）：71-74.
	KONG Deshun， WANG Lufeng， JIANG Rongli.Experimental study on hydrothermal preparation of poly ferric chloride from waste liquid of ferric chloride［J］.Technology & Development of Chemical Industry，2020，49（7）：71-74.
4	李斌.钢铁酸洗废液制备聚合氯化铁及对炼油废水应用研究［J］.化学工程师，2020，34（2）：33-35.
	LI Bin.Preparation of poly ferric chloride from steel pickling waste liquid and its application to refinery wastewater［J］.Chemical Engineer，2020，34（2）：33-35.
5	黄涛，黄自力，肖硕，等.用盐酸从强磁铁尾矿中浸出铁及其动力学研究［J］.湿法冶金，2023，42（1）：13-17.
	HUANG Tao， HUANG Zili， XIAO Shuo，et al.Leaching of iron from strong magnet iron tailings by hydrochloric acid and its kinetics［J］.Hydrometallurgy of China，2023，42（1）：13-17.
6	王丹.由酸洗废液制取聚合氯化铁方法的研究与初步应用［D］.沈阳：东北大学，2005.
7	鲁秀国，武今巾，黄林长，等.聚合氯化铁处理赣江饮用水的实验研究［J］.应用化工，2019，48（3）：511-513.
	LU Xiuguo， WU Jinjin， HUANG Linchan，et al.Experimental study on treatment of Ganjiang drinking water by ferric chloride［J］.Applied Chemical Industry，2019，48（3）：511-513.
8	国家质量监督检验检疫总局，中国国家标准化管理委员会. 水处理剂聚合硫酸铁：GB/T 14591—2016［S］.北京：中国标准出版社，2016.
9	孔德顺，王鲁凤，蒋荣立.用氯化铁废液制备聚合氯化铁并处理洗煤废水试验研究［J］.湿法冶金，2020，39（6）：535-538.
	KONG Deshun， WANG Lufeng， JIANG Rongli.Preparation of polymeric ferric chloride using ferric chloride waste solution and treatment of coal-washing wastewater［J］.Hydrometallurgy of China，2020，39（6）：535-538.
10	鲁秀国，黄林长，张耀，等.钢材酸洗废液制备聚合氯化铁及其絮凝性能［J］.应用化工，2018，47（5）：909-911.
	LU Xiuguo， HUANG Linchang， ZHANG Yao，et al.Preparation of polymeric ferric chloride from steel pickling waste liquor and its focculation property［J］.Applied Chemical Industry，2018，47（5）：909-911.
11	陈杰.聚合氯化铝与聚合氯化铁用于农村生活污水除磷效果研究［J］.化工管理，2020（24）：60-61.
	CHEN Jie.Study on phosphorus removal effect of polyaluminum chloride and polyaluminum chloride in rural domestic sewage［J］.Chemical Enterprise Management，2020（24）：60-61.
12	QIAN Feng， HE Mengchang， WU Jieyun，et al.Insight into removal of dissolved organic matter in post pharmaceutical wastewater by coagulation-UV/H₂O₂ ［J］.Journal of Environmental Sciences，2019，76：329-338.

铁物相	w（Fe）/%	分布率/%
赤褐铁矿	23.6	85.26
菱铁矿	3.45	12.46
硅酸铁	0.50	1.81
硫化铁	0.11	0.4
磁铁矿	0.02	0.07
全铁	27.68	100

试验	聚合温度/℃	聚合pH	聚合时间/h	盐基度/%
1	30	0.8	2	6.12
2	30	1.0	4	9.81
3	30	1.2	3	8.64
4	40	0.8	4	12.41
5	40	1.0	3	20.31
6	40	1.2	2	15.39
7	50	0.8	3	4.78
8	50	1.0	2	6.09
9	50	1.2	4	5.43
k₁	8.19	7.77	9.20
k₂	16.04	12.07	11.24
k₃	5.43	9.82	9.22
R	10.60	4.30	2.04

指标项目	w （Fe³⁺）/%	w （Fe²⁺）/%	盐基度/ %	w（水不溶物）/%	密度（20 ℃）/ （g·cm^-3）
标准	≥8.0	≤0.2	5.0~30.0	≤0.3	≥1.20
自制PFC检测结果	9.26	0.1	20.91	0.1	1.22
指标项目	w （Zn）/%	w （As）/%	w （Pb）/%	w （Hg）/%	w （Cd）/%	w （Cr）/%
标准	≤0.1	≤0.000 5	≤0.002	≤0.000 5	≤0.001	≤0.005
自制PFC检测结果	0.01	—	—	—	—	—

[1]	HUANG Tianyin, SUN Ling, ZHAO Qinzheng, CHEN Xin, SONG Xiaojie, WU Bingdang. Study on performance and mechanism of titanium salt coagulant for treatment of oily wastewater [J]. Inorganic Chemicals Industry, 2025, 57(2): 68-75.
[2]	WU Wei, XU Cuiping, ZHAO Qinzheng, YANG Jingjing, XU Xiaoyi, HUANG Tianyin, WU Bingdang. Study on coagulation performance and residual aluminum forms of aluminum salt coagulants for surface water [J]. Inorganic Chemicals Industry, 2025, 57(1): 42-50.
[3]	GAN Yonghai, DING Xinhe, DING Chengcheng, LUO Jun, XU Bin, KONG Ming, SONG Xiaojie, CUI Yibin. A comprehensive review of molybdenum removal by coagulation in water treatment [J]. Inorganic Chemicals Industry, 2024, 56(9): 24-33.
[4]	WU Bingdang, PAN Yinglu, ZHAO Qinzheng, WU Wei, XU Xiaoyi, HUANG Tianyin. Preparation of novel lanthanum coagulants and their deep phosphorus removal properties in low temperature and turbidity water [J]. Inorganic Chemicals Industry, 2024, 56(2): 127-135.
[5]	MA Yihong, CHEN Xingtao, TANG Lei. Treatment of printing wastewater by chemical coagulation-TiO₂/g-C₃N₅ photocatalytic degradation [J]. Inorganic Chemicals Industry, 2024, 56(10): 151-158.
[6]	ZHANG Peng, DONG Shanshan, WANG Yulu, ZHAO Yuelong. Synthesis and characterization of magnetic xanthogenated chitosan [J]. Inorganic Chemicals Industry, 2023, 55(7): 89-96.
[7]	XU Li, ZHANG Qiang. Experimental study on properties of iron tailings powder cement-based materials [J]. Inorganic Chemicals Industry, 2023, 55(6): 116-123.
[8]	MIAO Linping,XU Miao,WANG Xinlong,YAN Zhengjuan,XU Dehua,YANG Jingxu. Study on preparation of calcium magnesium polyphosphate [J]. Inorganic Chemicals Industry, 2022, 54(9): 63-68.
[9]	YAO Heng,TANG Jianwei,LIU Yong,LIU Pengfei,HUA Quanxian,WANG Baoming. Study on desilication process of silicic acid from high magnesium slag acidolysis solution by self-polymerization and centrifugal [J]. Inorganic Chemicals Industry, 2022, 54(11): 83-89.
[10]	Zhang Xin,Zhang Li. Study on the treatment of cadmiμm plating wastewater by electrocoagulation with Al-Fe electrode [J]. Inorganic Chemicals Industry, 2021, 53(8): 87-90.
[11]	Ji Dingyu,Li Yunzhen,Zhou Yu. Preparation of polymeric ferric sulfate from iron tailings and preliminary evaluation of papermaking wastewater treatment [J]. Inorganic Chemicals Industry, 2021, 53(8): 96-100.
[12]	Chen Yong,Yang Sanke,Xie Tian,Tao Shaocheng,Long Qinglan,Liu Xu. Research on preparation process of water-soluble ammonium polyphosphate with high polymerization rate [J]. Inorganic Chemicals Industry, 2020, 52(5): 50-52.
[13]	Liu Xu,Tang Jianwei,Liu Yong,Hua Quanxian,Wang Baoming. Research and application progress of water-soluble agricultural ammonium polyphosphate [J]. Inorganic Chemicals Industry, 2020, 52(12): 7-11.
[14]	Wang Yan,Wang Xinlong,Xu Dehua,Xu Dejun,Yang Jingxu. Effect of Mg²⁺ on hydrolysis of water soluble ammonium polyphosphate [J]. Inorganic Chemicals Industry, 2020, 52(10): 72-76.
[15]	Chen Zhenbang, Yang Shousheng. Aging mechanism and life prediction of ammonium polyphosphate thermal-oxidative acceleration aging [J]. Inorganic Chemicals Industry, 2019, 51(3): 20-24.

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Experimental study on preparation of polyferric chloride from iron tailings acid leaching solution

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 13

References 12

Related Articles 15

Metrics

Comments

Recommended 0