磷尾矿煅烧及酸浸过程动力学研究

doi:10.19964/j.issn.1006-4990.2021-0163

Abstract

Abstract:

In order to effectively recover calcium and magnesium from phosphorus tailings after flotation in a phosphating plant,which can be used for the preparation of a new type of soil regulator,sugar alcohol chelated calcium-magnesium.The calcining and leaching kinetics experiment of phosphorus tailings was carried out.Based on thermogravimetric analysis and acid leaching rate of calcium and magnesium,the results showed that the thermal decomposition process of dolomite in phosphorus tailings was endothermic reaction,the thermal decomposition of dolomite followed the two-dimensional phase interface reaction model.The apparent activation energies of calcium and magnesium leaching reaction were 13.157 kJ/mol and 23.023 kJ/mol,the leaching rate was controlled by internal diffusion.And the kinetic equations of the thermal decomposition of dolomite and the leaching of calcium and magnesium were obtained.

Key words: phosphorus tailings, calcination, leaching, kinetics

CLC Number:

TQ126.3

ZHOU Jiaqi,CHEN Kui,WU Bin,JI Lijun,WU Yanyang. Study on kinetics of phosphate tailings calcination and acid leaching process[J]. Inorganic Chemicals Industry, 2022, 54(1): 77-82.

Figures/Tables 18

Fig.1

Table 1

Table 2

Table 3

Table 4

Fig.2

Fig.3

Fig.4

Table 5

Fig.5

Fig.6

Table 6

Fig.7

Fig.8

Table 7

Fig.9

Fig.10

Table 8

References 21

[1]	俞政一. 磷矿物和磷矿石的性质及分类[J]. 硫磷设计, 1998(2):29-37.
[2]	吴汉军. 磷尾矿综合利用研究[D]. 武汉:武汉工程大学, 2015.
[3]	马一嘉, 武俊杰, 倪天阳. 我国磷矿资源的开发利用现状及进展[J]. 矿冶, 2018, 27(2):53-56.
[4]	甄逢生, 沙惠雨, 刘长淼, 等. 中国磷矿石选矿工艺研究现状[J]. 金属矿山, 2018(2):7-13.
[5]	胡宏, 李艳. 高镁磷尾矿渣制取磷镁复合肥料的试验研究[J]. 贵州化工, 2009, 34(2):20-21,25.
[6]	刘啸龙. 白肥中磷的回收利用及酸解动力学研究[D]. 上海:华东理工大学, 2015.
[7]	吴礼定, 曾波, 王生军, 等. 中低品位磷矿尾矿的综合利用研究进展[J]. 云南化工, 2008(35):55-58.
[8]	RUAN Renman, WEN Jiankang, CHEN Jinghe. Bacterial heap-each-ing:Practice in zijinshan copper mine[J]. Hydrometallurgy, 2006, 83(1/4):77-82. doi: 10.1016/j.hydromet.2006.03.048
[9]	赵鑫, 蔡慢弟, 董倩倩, 等. 中低品位磷矿资源高效利用机制与途径研究进展[J]. 植物营养与肥料学报, 2018, 24(4):1121-1130.
[10]	刘润哲, 刘丽芬, 欧志兵, 等. 磷矿尾矿资源化利用研究进展[J]. 化工矿物与加工, 2020, 49(2):52-56.
[11]	周坤, 唐云, 张群, 等. 磷尾矿制备磷酸铵镁试验研究[J]. 矿业研究与开发, 2015, 35(4):31-33.
[12]	孙娜, 尤彩霞. 磷尾矿制备氢氧化镁研究进展[J]. 河南科技, 2019(10):126-127.
[13]	丁双双, 李燕婷, 袁亮, 等. 小分子有机物螯合钙肥对樱桃番茄产量、品质和养分吸收的影响[J]. 中国土壤与肥料, 2015(5):61-66.
[14]	张景华, 郭亚楠, 徐维辰, 等. 山梨糖醇钙离子螯合物稳定性的探究[J]. 山东化工, 2017, 46(13):14-16.
[15]	ZHANG Y, FU C, YAN Y, et al. Zinc sulfate and sugar alcohol zinc sprays at critical stages to improve apple fruit quality[J]. Horttech-nology, 2013, 23(4):490-497.
[16]	周飞, 杨林, 曹建新. 中低品位磷矿焙烧过程中白云石热分解动力学研究[J]. 硅酸盐通报, 2019, 38(5):1377-1383,1389.
[17]	章佳豪, 郁青春, 杨斌, 等. 白云石热分解动力学机理探究[J]. 有色金属工程, 2020, 10(12):55-61.
[18]	郑峰伟. 粉煤灰中铝铁浸出过程及动力学研究[D]. 昆明:昆明理工大学, 2018.
[19]	TENG Qing, FENG Yali, MA Ying. Study on acid leaching kinetics of magnesite tailings[J]. Metal Mine, 2017(11):189-193.
[20]	王海波, 吴小平, 高健, 等. 硫酸浸取钛铁矿动力学研究[J]. 钢铁钒钛, 2020, 41(6):6-10.
[21]	张汉泉, 蔡祥, 陈官华, 等. 含铜硫酸渣中铜的浸出及浸出动力学分析[J]. 有色金属工程, 2020, 10(4):44-50,56.

w（P₂O₅）	w（CaO）	w（MgO）	w（Al₂O₃）	w（Fe₂O₃）
6.61	31.65	13.84	1.22	2.73
w（SiO₂）	w（CO₂）	w（SO₃）	w（F）	w（MnO）
4.34	34.45	4.25	0.52	0.39

反应分解率	热分解温度点/K
反应分解率	5 K/min	10 K/min	15 K/min	20 K/min
0.1	876	912	920	919
0.2	928	974	979	980
0.3	951	997	1 000	1 004
0.4	967	1 010	1 011	1 018
0.5	978	1 020	1 021	1 029
0.6	987	1 031	1 033	1 039
0.7	994	1 041	1 042	1 048
0.8	1 001	1 049	1 051	1 058
0.9	1 008	1 057	1 059	1 068
1.0	1 272	1 271	1 232	1 264

β/ （K·min^-1）	模型序号	E/ （kJ·mol^-1）	ln A	R²	模型序号	E/ （kJ·mol^-1）	ln A	R²	模型序号	E/ （kJ·mol^-1）	ln A	R²
5	1	205.996	23.068 7	0.955 0	4	57.935	3.738 3	0.938 9	7	372.306	41.369 8	0.976 3
	2	310.632	36.918 0	0.883 1	5	39.427	1.095 7	0.927 2	8	165.480	16.934 2	0.996 5
	3	94.950	8.747 8	0.947 9	6	281.236	31.513 2	0.982 1	9	178.105	18.231 5	0.974 3
10	1	222.211	24.518 1	0.976 1	4	62.811	4.675 0	0.967 8	7	399.895	43.236 3	0.990 2
	2	337.876	39.096 2	0.916 4	5	42.887	1.971 0	0.961 8	8	177.633	18.124 3	0.993 8
	3	102.661	9.811 2	0.972 4	6	300.066	32.845 2	0.997 2	9	191.503	19.500 0	0.989 4
15	1	232.409	26.101 2	0.985 5	4	66.169	5.505 3	0.980 7	7	417.146	45.597 0	0.995 2
	2	354.270	41.377 8	0.934 4	5	45.389	2.710 9	0.977 3	8	185.512	19.445 7	0.997 1
	3	107.729	10.827 6	0.983 3	6	312.251	34.635 6	0.993 9	9	200.098	20.902 2	0.994 8
20	1	215.588	24.188 5	0.980 7	4	60.515	4.989 6	0.973 8	7	388.331	42.168 3	0.992 2
	2	328.412	38.330 5	0.926 9	5	41.131	2.362 4	0.968 7	8	172.139	17.966 4	0.994 8
	3	99.283	9.966 8	0.977 6	6	291.095	32.170 4	0.994 8	9	185.655	19.288 4	0.991 6

反应温度/K	化学反应控制模型		内扩散控制模型
反应温度/K	k₁/10^-1	R₁²	k₂/10^-3	R₂²
313	0.016 8	0.950 9	0.544 9	0.947 5
323	0.018 4	0.949 4	0.602 7	0.947 7
333	0.020 8	0.947 3	0.685 7	0.942 6
343	0.023 3	0.941 7	0.773 8	0.940 6
353	0.029 2	0.940 4	0.988 8	0.938 3

控制模型	反应活化能E/（kJ·mol^-1）	R²
化学反应控制模型	12.245	0.941 4
内扩散控制模型	13.157	0.940 3

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Study on kinetics of phosphate tailings calcination and acid leaching process

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 18

References 21

Related Articles 15

Metrics

Comments

Recommended 0

控制模型	反应活化能E/（kJ·mol^-1）	R²
化学反应控制模型	17.884	0.936 5
内扩散控制模型	23.023	0.938 5

[1]	WANG Shengchang, HAO Jianying, CHEN Jianing, TIAN Bo. Effect of calcination on properties of calcined gypsum prepared from desulphurization gypsum with potassium aluminum sulfate [J]. Inorganic Chemicals Industry, 2024, 56(4): 105-111.
[2]	QIAN Zhihui, ZHU Qin, MA Jiao, GUO Yujiao, XIANG Mingwu, GUO Junming. Study on preparation and electrochemical properties of nano-sized LiNi_0.05Mn_1.95O₄ cathode materials [J]. Inorganic Chemicals Industry, 2024, 56(4): 50-56.
[3]	YU Zhou, HE Zhaoyi, TANG Liang, HE Sheng, XIAO Haixin, XIAO Yixun. Study on preparation and microscopic properties of typical sulfate solid waste composite cementitious materials [J]. Inorganic Chemicals Industry, 2024, 56(4): 90-97.
[4]	WANG Jianrui, ZHANG Song, ZHANG Jie. Study on new process for beneficiation phosphate of low-grade phosphate rock leaching via lactic acid [J]. Inorganic Chemicals Industry, 2024, 56(3): 56-63.
[5]	WANG Ruting, ZHAO Xiaorong, HUANG Xuquan, WANG Haojie, XUE Fei, CAI Jiawei. Research on preparation and early performance of mixed phase phosphogypsum-based cementing materials [J]. Inorganic Chemicals Industry, 2024, 56(3): 98-104.
[6]	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.
[7]	YANG Kun, REN Qixia, DONG Yonggang, LIU Fei, YAO Mengqin, CAO Jianxin. Effect of calcination temperature on catalytic performance of ZnGaZrO _x /SAPO-34 [J]. Inorganic Chemicals Industry, 2024, 56(2): 136-145.
[8]	XIA Guiying, YANG Liuchun, YUAN Zhiye. Study on direct leaching of rare earth elements from phosphogypsum with sulfuric acid [J]. Inorganic Chemicals Industry, 2024, 56(1): 107-113.
[9]	XIANG Mengqi, MENG Hua, WANG Ye, MENG Xianzhang, BAI Yuhang, WANG Yujunyao, ZHANG Yidan. Study on kinetic of iron leaching from titanium gypsum and its cyclic acid leaching process [J]. Inorganic Chemicals Industry, 2024, 56(1): 114-120.
[10]	ZHANG Conghua, YAN Wenbin, XIAO Jiajun, ZHAO Ke, PENG Shangquan, WEI Yuhong. Reductive leaching technology of manganese anode slag using tartaric acid as reducing agent optimized by RSM [J]. Inorganic Chemicals Industry, 2023, 55(9): 106-113.
[11]	LI Qiang, YOU Xiaomin, SHE Xuefeng, JIANG Zeyi, XUE Qingguo, WANG Jingsong. Effect of calcination temperature and carbon structure on compressive strength of CaO-containing carbon pellets [J]. Inorganic Chemicals Industry, 2023, 55(9): 43-49.
[12]	LUO Wenbo, LI Heng, LÜ Jun, YANG Linguang, ZHAO Xingfan, LONG Xiao. Study on recovery of silicon and aluminum from industrial silicon slag [J]. Inorganic Chemicals Industry, 2023, 55(9): 94-99.
[13]	FAN Fangfang, TONG Zhongkai, ZUO Weiyuan. Study on adsorption of tetracycline from wastewater by calcium modified peanut shell biochar [J]. Inorganic Chemicals Industry, 2023, 55(6): 109-115.
[14]	LI Heng, ZHANG Hui, ZI Xuemin. Analysis on calcination process progress of phosphogypsum [J]. Inorganic Chemicals Industry, 2023, 55(6): 27-35.
[15]	DONG Xinyu, WANG Haifeng, HE Yue, YANG Pan, WANG Song, YANG Chunyuan, WANG Qin, HUANG Bifang, WANG Jiawei. Exleaching toxicity analysis and harmless treatment of electrolytic manganese residue [J]. Inorganic Chemicals Industry, 2023, 55(5): 85-90.