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Tatyana Aleksandrova

3 linked publication records

Author: Tatyana AleksandrovaYear: 2017clear all
Showing 1-3 of 3 records
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SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining
Publication

BENEFICIATION OF CARBONACEOUS ROCKS

(STEF92 Technology, 2017-06-20, Tatyana Aleksandrova, in sc. Nadezda Nikolaeva, Alexander Aleksandrov, Student Uliana Pavlova)

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Carbonaceous overburden rocks carry a heightened metallogenic potential. The possibility of extraction of valuable metals from natural bitumens and overburden rocks of oil fields is considered. The results of mineralogical and technological researches of samples are presented. The analysis of sample has shown an increased content of valuable microelements in some objects. All samples contain carbon of varying degrees of metamorphism. The fact of simultaneous concentration of carbonaceous rocks by several microelem...

Mineral Processing2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining
Publication

MODELING OF MOTION OF HEAVY OIL SUSPENSIONS WITH REGARD TO RHEOLOGICAL PROPERTIES OF LIQUID IN A CIRCULAR PIPE

(STEF92 Technology, 2017-06-20, Aleksandr Aleksandrov, Tatyana Aleksandrova, Artem Romashev)

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Year by year, the growth of the share of heavy oils in the total volume is steadily increasing. For development of highly effective methods for its processing, approaches to modelling their properties should be elaborated. This thesis is dedicated to deriving and substantiating a formula for calculation of the velocity field in the round pipe volume as adjusted for rheological features of the flow of heavy oil suspensions. The suggested approach is based upon rheodynamics equations reflecting the flow of a rheolog...

Ecology and Environmental Protection2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining
Publication

STUDY OF SPECIFIC SURFACE ENERGY OF ORES AT DISINTEGRATION WITH THE USE OF CHEMICAL REAGENTS

(STEF92 Technology, 2017-06-20, in sc. Nadezda Nikolaeva, Tatyana Aleksandrova, Student Dmitriy Semenikhin)

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The article describes studies of the process of mineral raw refinement in dry, wet form and with addition of chemical reagents. Specific energy spent to refinement has been determined in the course of disintegration, as well as specific surface of particles before and after refinement has been measured. The values of refinement of inter-phase surface area of disintegrated mineral particles and values of specific surface energy have been calculated. With the help of performed studies one may obtain quantitative exp...

Mineral Processing2017
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