Prediction of the wettability characteristics of some minerals from their breakage parameters

In this contribution, the breakage and wettability properties of calcite and barite minerals were presented and some correlations were established between these experimentally determined parameters. The γ c relates to S i by a relationship: γ c=−4.94 S i +32.5 (calcite) and γ c=−5.70 S i +36.1 (bari...

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Bibliographic Details
Published in:Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 2003-03, Vol.214 (1), p.279-286
Main Authors: Yekeler, M, Ozkan, A
Format: Article
Language:English
Subjects:
Barite
Breakage rate
Calcite
Critical wetting
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Summary:In this contribution, the breakage and wettability properties of calcite and barite minerals were presented and some correlations were established between these experimentally determined parameters. The γ c relates to S i by a relationship: γ c=−4.94 S i +32.5 (calcite) and γ c=−5.70 S i +36.1 (barite), where γ c is the critical surface tension of wetting of mineral determined by flotation technique and S i is the specific rate of breakage of mineral obtained from grinding tests. Another relationship found is expressed by: m f=4.20 S i +5.30 (calcite) and m f=7.96 S i +6.71 (barite), where m f in to slope of the flotation recovery curve. These relationships will help us to predict the wettability behavior of solids in surface chemistry related processes, by knowing the breakage parameter S i previously from any grinding tests.
ISSN:0927-7757
1873-4359
DOI:10.1016/S0927-7757(02)00408-9