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Open AccessArticle

Correlations for Easy Calculation of the Critical Coalescence Concentration (CCC) of Simple Frothers

1
Department of Physical Chemistry, Sofia University “Saint Kliment Ohridski”, 1 James Bourchier blvd, 1164 Sofia, Bulgaria
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Department of Mining Engineering, Istanbul University-Cerrahpaşa, Buyukcekmece, 34500 Istanbul, Turkey
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Department of Mining Engineering, Adana Alparslan Türkeş Science and Technology University, Sarıçam, 01250 Adana, Turkey
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Department of Mineral Processing Engineering, Istanbul Technical University, Maslak, 34467 Istanbul, Turkey
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Rectorate, Harran University, 63510 Şanlıurfa, Turkey
*
Author to whom correspondence should be addressed.
Coatings 2020, 10(7), 612; https://doi.org/10.3390/coatings10070612
Received: 30 May 2020 / Revised: 21 June 2020 / Accepted: 27 June 2020 / Published: 29 June 2020
Can the critical coalescence concentration (CCC) of the flotation frothers be predictable? What is the relation between their molecular structure and their CCC values? A literature survey found specific correlations between the hydrophilic-lipophilic balances (HLB) and HLB/Mw (where Mw stands for the molecular mass) of homologue series of frothers and their CCC values, but the results are invalid when the molecule’s functional groups change. For this reason, 37 frothers with known values of CCC were analyzed. The CCC values of seven frothers were determined, and the rest were taken from the literature. The frothers were subdivided in homologue series with an increasing number of the carbon atoms with an account for the type and the location of the functional group, thus deriving three types of correlations lnCCC = f(HLB) applicable for: (i) alcohols; (ii) propylene glycols alkyl ethers and propylene glycols; (iii) ethylene glycols alkyl ethers. The average accuracy of these correlations between CCC and HLB is 93%. View Full-Text
Keywords: frother; critical coalescence concentration (CCC); foam; molecular geometry frother; critical coalescence concentration (CCC); foam; molecular geometry
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MDPI and ACS Style

Karakashev, S.I.; Grozev, N.A.; Batjargal, K.; Guven, O.; Ozdemir, O.; Boylu, F.; Çelik, M.S. Correlations for Easy Calculation of the Critical Coalescence Concentration (CCC) of Simple Frothers. Coatings 2020, 10, 612.

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