Iron ore filtration process improvement through pH modification

被引：1
|
作者：
Andrade, Alexandre Goncalves [1 ]
Athayde, Maycon [2 ]
机构：
[1] Sept Iles, Quebec City, PQ, Canada
[2] Vale SA, Ave Dante Micheline,5500 Ponta Tubarao, BR-29090900 Vitoria, ES, Brazil
来源：
SN APPLIED SCIENCES | 2021年 / 3卷 / 04期
关键词：
Filtration process; Iron Ore; Moisture; Langelier saturation index; WATER;
D O I：
10.1007/s42452-021-04446-2
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The present study presents the effect of pH reduction in iron ore slurry for an iron ore filtration process. A reduction on moisture content and increase on filters throughput was proposed by the pH modification. The experimental procedure included bench scale tests and industrial scale up of the observed results. Additionally, Langelier's saturation index was applied to determine the optimum pH range for the filtration operation. The calcium carbonate deposition test was developed and evaluated in the present study. A comprehensive evaluation at different pH ranges was performed leading to identify the calcium carbonate deposition critical point.
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页数：9
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