Investigation on the working mechanism of the nitrile based sulfide collector Tecflote


Investigation on the working mechanism of the nitrile based sulfide collector Tecflote

Schach, E.; Lewis, A.; Rudolph, M.

Tecflote is a new group of nitrile-based collectors for sulphide flotation. The fact that it is insoluble in water results in some interesting implications for its actual working mechanism. It can be assumed that the Tecflote-molecules are adsorbed in the air water interface having first contact with the mineral surface during the particle bubble collision rather than conventional theories where particles are hydrophobized within the pulp in a conditioning step. Therefore, the adsorption of Tecflote and the spreading of the three-phase contact line between the mineral surface and the air bubble must be related to each other. Different investigations including contact angle measurements and AFM studies are conducted to obtain a better understanding of the working mechanism of Tecflote. Due to the insoluble character, the Langmuir-Blodgett technique is used to investigate the behaviour of Tecflote in the air-water interface and to deposit layers of Tecflote on mineral substrates for the above-mentioned studies.

  • Lecture (Conference)
    Flotation '19, 11.-14.11.2019, Kapstadt, Südafrika

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Publ.-Id: 30190