Thermocapillary mechanism of laser-stimulated agglomeration of ultradisperse and colloidal-ionic gold

Kuzmenko, A. P.; Leonenko, N. A.; Kharchenko, V. I.; Kuz’menko, N. A.; Silyutin, I. V.; Khrapov, I. V.

doi:10.1134/s1063785009090156

Cited by 6 publications

(2 citation statements)

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“…It was shown in [9][10][11] that thermocapillary forces make the dominant contribution to the process of coarsening from nanoparticles to sizes of practical importance, up to hundreds of microns. Thus, under the influence of laser radiation, a thermal process of disintegration of Concentration and agglomeration of metals occurs under the action of laser radiation, in particular, gold in larger formations, which are distinguished by greater chemical purity than the original mineral associations.…”

Section: Resultsmentioning

confidence: 99%

Integration of fiber lasers in processes of mineral raw material processing

Leonenko

2018

E3S Web Conf.

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The application of laser technologies (LT) in the economy of the most developed countries. The possibility of using laser technologies for processing technogenic mineral raw materials is considered. The possibilities of integration of fiber-optic lasers into the processes of enrichment and processing of mineral raw materials are explored. The effects of interaction of laser radiation with mineral media - objects of Amur placer technogenic deposits containing submicron gold not extracted by modern gravitational methods are analyzed. The formation of selforganizing gold structures on the surface of a silicate matrix was established, general patterns of agglomeration and concentration of “nonextractable forms” of gold were revealed.

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Section: Resultsmentioning

confidence: 99%

Integration of fiber lasers in processes of mineral raw material processing

Leonenko

2018

E3S Web Conf.

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“…As seen from the scanning image of a channel such a discontinuity as a channel has a diameter of micrometers. This size is equal to the squared thickness of the foil appeared from agglomerated gold, and the channel localization may be due to the temperature differential dictated by inhomogeneity of the melt [4][5][6][7][8].…”

Section: Methodsmentioning

confidence: 99%