Influence of Water Hardness on Sedimentation Effect of Ultrafine Hematite

Metal Mine ›› 2016, Vol. 45 ›› Issue (12): 134-137.

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Influence of Water Hardness on Sedimentation Effect of Ultrafine Hematite

Long Wei^1,2，Zhang Qin^1,2，Xiang Guifeng^1,2，Zhang Jin^1,2，Pan Deng^1,2，Zeng Rui^1,2

1.School of Resources and Environmental Engineering，Wuhan University of Science and Technology，Wuhan 430081,China；2.Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources，Wuhan 430081,China

Online:2016-12-15 Published:2017-02-16

Abstract

Abstract: To find the influence of water hardness on sedimentation behavior on ultrafine hematite，water hardness，PAM dosage，pH，temperature on the sedimentation behavior were studied，using an ultrafine hematite from Brazil as the study sample.The results indicated that：for high alkalinty，calcium and magnesium ions can greatly promote the coagulation of hencatite ore fines；for pH=12 conditions，calcium and magnesium ions and flocculant can cooperate to promote fine hencatite ore sedimentation.Increase temperature is good to promote settlement .The experimental results have great significance for sedimentation rate improve for iron concentrate.

Key words: Utralfine iron concentrate, Flocculant, Water hardness, Sedimentation rate

LONG Wei, ZHANG Qin, XIANG Gui-Feng, ZHANG Jin, PAN Deng, ZENG Rui. Influence of Water Hardness on Sedimentation Effect of Ultrafine Hematite[J]. Metal Mine, 2016, 45(12): 134-137.

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