RT Journal Article ID 3337d2ad6b3b6932 A1 Fedoseev, Alexander A1 Sukhinin , G. I. A1 Yarygin, Igor V. A1 Prikhodko, Victor G. A1 Novopashin, Sergey A. T1 VACUUM PROCESSING OF GOLD-BEARING CLAY MATERIALS JF Interfacial Phenomena and Heat Transfer JO IPHT YR 2019 FD 2019-09-23 VO 7 IS 2 SP 123 OP 129 K1 heat and moisture transfer K1 porous material K1 evaporation and crystallization AB The influence of vacuum on a spherical clay sample is investigated via numerical simulation and experiment. The temporal and radial dependences of the temperature and mass of these samples were measured in the vacuum drying process. The numerical model in which the measurements were conducted calculates the moisture and heat transfer equations, where the effective coefficients of thermal conductivity and diffusion were set equal to the coefficients of a moist porous medium. Calculations were performed for various initial and boundary conditions. The data obtained on the temperature and moisture content distributions had sufficient deviations from the experimental data; however, both described important qualitative distribution features. The results of the current paper will help in determining the conditions of effective clay disintegration, which will facilitate the extraction of gold from gold-bearing clays. PB Begell House LK https://www.dl.begellhouse.com/journals/728e68e739b67efe,0032c6013bb79bd6,3337d2ad6b3b6932.html