盐酸分解高硅混合型胶磷矿工艺研究

doi:10.11962/1006-4990.2020-0142

Abstract

Abstract:

The development and utilization of middle/low-grade phosphate rock is the basic guarantee for the sustainable de-velopment of China′s phosphate chemical industry.High silicon phosphate ore was leached by hydrochloric acid,and its aci-dolysis process and filtration strengthening process were studied by single factor experiment.The results showed that under the optimal conditions,such as phosphate ore particle size was less than 180 μm,reaction temperature was 40 ℃,hydrochloric acid ratio（the mass ratio of actual hydrochloric acid input to theoretical acid consumption） was 1.1,HCl mass fraction was more than 20%,leaching time was 10 min,then the leaching extent of P₂O₅ was more than 99%.The leaching rate of phosphate ore in hydrochloric acid is fast and the leaching extent is high.The content of silicon dioxide in acidolysis slurry of high silicon phosphate rock is high,with small particle size and slow settling rate in the acidolysis slurry make it difficult to filter.By adding non-ionic polyacrylamide flocculant,the mass of flocculant was controlled to be 1.0% of the quality of acidolysis slurry and settling for 2 min,the filtration was strengthened significantly.

Key words: hydrochloric acid, high silicon phosphate ore, leaching, strengthen filtration

CLC Number:

TQ126.3

Zheng Dongyao,Tang Shengwei,Lü Li. Study on process of hydrochloric acid leaching high silicon mixed phosphate ore[J]. Inorganic Chemicals Industry, 2021, 53(2): 81-83.

w（P₂O₅）	w（CaO）	w（Fe₂O₃）	w（Al₂O₃）	w（MgO）
28.55	37.61	1.10	1.72	0.19
w（K₂O）	w（F）	w（SiO₂）	烧失量	w（其他）
0.46	1.85	21.33	2.40	4.79

[1]	张亚明, 李文超, 王海军. 我国磷矿资源开发利用现状[J].化工矿物与加工,2020(6):1-7.
[2]	何宾宾, 魏立军, 谢德龙, 等. 中国湿法磷加工产业现状与可持续发展[J]. 无机盐工业, 2020,52(1):1-4.
[3]	张利珍, 张永兴, 张秀峰, 等. 中国磷石膏资源化综合利用研究进展[J]. 矿产保护与利用, 2019,39(4):14-18.
[4]	张文静, 张建刚, 陈烨, 等. 盐酸法湿法磷酸工艺研究进展[J]. 应用化工, 2019,48(1):193-196.
[5]	王章露, 刘代俊, 伍洋, 等. 磷矿粉酸解特性探索[J].硫磷设计与粉体工程,2013(4):6-9.
[6]	黄飞舟, 武斌, 陈葵, 等. 盐酸酸解脱镁磷矿机理研究[J]. 化工矿物与加工, 2018,47(11):7-11.
[7]	张文静. 盐酸法湿法磷酸净化工艺研究[D]. 贵阳:贵州大学, 2019.

[1]	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.
[2]	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.
[3]	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.
[4]	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.
[5]	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.
[6]	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.
[7]	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.
[8]	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.
[9]	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.
[10]	DONG Xiongwei, HAN Fenglan, HUA Wei, LI Maohui, AN Changcong, HUANG Yucai. Synthesis and characterization of silico-manganese slag zeolite [J]. Inorganic Chemicals Industry, 2023, 55(12): 128-132.
[11]	TENG Jiayang, FENG Qingge, ZHANG Xuan, QIN Fanghong, FENG Jinghang, HU Jiawen, CHEN Chaohong. Study on preparation of pseudo-boehmite from aluminum dross resource treatment [J]. Inorganic Chemicals Industry, 2023, 55(11): 130-138.
[12]	ZHOU Xiaoping, FENG Haoshou, ZHANG Guohui, HOU Shilei, ZHANG Shuaipeng, LIU Lixia. Development and practice of continuous defluoridation technology for by-products fluorinated hydrochloric acid of lithium hexafluorophosphate [J]. Inorganic Chemicals Industry, 2023, 55(11): 93-99.
[13]	LI Huifang, WANG Xiao, BAI Youpeng, ZHANG Shixiang. Study on extraction of lithium from low grade high clay leaching solution by solvent extraction [J]. Inorganic Chemicals Industry, 2023, 55(10): 63-69.
[14]	HU Luoxing,HUANG Qimao,QU Hongyou. Preparation of Fe₃O₄ from FeCl₂ by-product of new process of titanium dioxide by hydrochloric acid [J]. Inorganic Chemicals Industry, 2023, 55(1): 118-123.
[15]	LIU Darui,XU Lijun,LI Shichun,CAO Kun,TU Ya,LI Wenqing,LIU Qingliang. Research progress of recovery of strategic metal lithium from fly ash [J]. Inorganic Chemicals Industry, 2023, 55(1): 56-63.

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Study on process of hydrochloric acid leaching high silicon mixed phosphate ore

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 6

References 7

Related Articles 15

Metrics

Comments

Recommended 0