- Tytuł:
- Simulation of mass-transfer process in porous media with complex shape : [abstract]
- Autorzy:
-
Ualyiev, Z.
Kaltayev, A.
Bekbauov, B. - Powiązania:
- https://bibliotekanauki.pl/articles/300046.pdf
- Data publikacji:
- 2007
- Wydawca:
- Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
- Tematy:
-
ośrodek porowaty
porous medium - Opis:
- Some rare minerals and metals are extracted by underground leaching. Thus sorption extraction of minerals on mass-transfer devices with use ion-exchange resin is the most widespread method of productive solutions processing. Now wide application finds sorbing device which represents the cylindrical column, filled by a layer of ion-exchange resin in the form of spherical porous granules. Through a column from below upwards with the filtration velocity the solution containing sorbing a mineral is pumped over. Velocity of solution admission is calculated off on kinetic parameters. A cone barrier located before a submitting pipe is intended for achievement of uniform distribution of a solution across a column [fig.]. On an output from a column through certain time tests of a solution which are analyzed on the maintenance in them of mineral are selected. Sorption proceeds until concentration of mineral on an outlet from a column will not be equal some admissible value. After that the saturated layer of a sorbent being below by a mineral is unloaded. Sorbing device from above is supplemented with a fresh sorbent and process repeats. There are some questions, a degree of an involvement of a sorbent in mass-transfer process (especially, in a transverse direction of a column) and change of column resistance depending on the size and forms of cone barrier, influence of dispersive and kinetic characteristics on thickness of the saturated layer.
- Źródło:
-
Wiertnictwo, Nafta, Gaz; 2007, 24, 1; 57-58
1507-0042 - Pojawia się w:
- Wiertnictwo, Nafta, Gaz
- Dostawca treści:
- Biblioteka Nauki
Artykuł