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Development of investigation techniques of froth flotation from the beginning of its wide industrial use. Part two. Methods of evaluation of the adsorption and orientation of heteropolar molecules of reagents in the adsorption layer on the surface of particles

  • Mineral Processing of Nonferrous Metals
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Abstract

Methods for evaluation of the adsorption and orientation of heteropolar molecules of reagents in the adsorption layer on the surface of particles and the adsorption of reagents on the surface of bubbles are considered. Experiments of nonfrothing flotation from a turbulent medium, methods of froth flotation (FF) with a limited air consumption, measurement of detachment forces simulating the FF, determination of the adherence times of the particles to the bubbles, and measurement of the contact angles can be used to reveal the character of the orientation of adsorbed molecules or ions of reagents. To evaluate the adsorption of reagents on the surface of bubbles, only static procedures for determination of the surface tension (σ), methods of recording the relaxation curves σ(t), and methods for evaluation of froth formation and destruction can be used. This possibility is reviewed to establish the relation between the definite properties of reagents and their concrete effect under the dynamic FF.

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Authors and Affiliations

  1. Kursk State Technical University, ul. 50 let Oktyabrya, Kursk, 305040, Russia

    V. I. Melik-Gaikazyan, N. P. Emel’yanova & P. S. Kozlov

Authors
  1. V. I. Melik-Gaikazyan
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  2. N. P. Emel’yanova
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  3. P. S. Kozlov
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Corresponding author

Correspondence to V. I. Melik-Gaikazyan.

Additional information

Original Russian Text © V.I. Melik-Gaikazyan, N.P. Emel’yanova, P.S. Kozlov, 2010, published in Izvestiya VUZ. Tsvetnaya Metallurgiya, 2010, No. 2, pp. 7–11.

The first part of this work was published in Izv. Vuz. Tsvetn. Met., 2010, no. 1, p. 7 [Russ. J. Nonfer. Met. (Engl. Transl.), 2010, no. 6].

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Melik-Gaikazyan, V.I., Emel’yanova, N.P. & Kozlov, P.S. Development of investigation techniques of froth flotation from the beginning of its wide industrial use. Part two. Methods of evaluation of the adsorption and orientation of heteropolar molecules of reagents in the adsorption layer on the surface of particles. Russ. J. Non-ferrous Metals 51, 89–93 (2010). https://doi.org/10.3103/S1067821210020021

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  • DOI: https://doi.org/10.3103/S1067821210020021

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