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Aspects of Talc Grinding in the Presence of Sodium Dodecyl Sulfonate
Author(s) -
Farag Reham M.,
ElMidany Ayman A.
Publication year - 2021
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1002/jsde.12504
Subject(s) - grinding , chemistry , talc , sodium dodecyl sulfate , total dissolved solids , fineness , sodium , chromatography , chemical engineering , metallurgy , materials science , organic chemistry , environmental engineering , engineering
In this study, the effect of sodium dodecyl sulfonate (SDS), as a well‐known flotation collector, on talc grinding was investigated using a statistical design in terms of solids%, pH, grinding time, and SDS dosage taking the d 80 of the ground product as a response. The results indicated that the factors under study significance order were grinding time > solids% > SDS dosage > pH. In addition, the interactions between solids % and the grinding time and between the solids% and SDS dosage significantly affected the product d 80 . More interestingly, the presence of SDS not only improves the grinding process at short grinding times but also it enhances the grinding at higher pH values. The optimum conditions for talc grinding are similar in the absence or presence of SDS in terms of factors under study, except for solids%. The vital role of SDS, as a grinding aid, is the production of particles with the same fineness or even finer at higher solids % which leads to an increase in the mill throughput. The smallest d 80 was obtained at 60% solids, 60 min, pH 4, and 2 kg t −1 of SDS.