Simulation of mass-transfer process in porous media with complex shape : [abstract]

• Autorzy: Ualyiev Z. , Kaltayev A. , Bekbauov B.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

porous medium

PL

ośrodek porowaty

• Wydawca: Wydawnictwa AGH
• Czasopismo: Wiertnictwo, Nafta, Gaz
• Rocznik: 2007
• Tom: T. 24, z. 1
• Strony: 57--58

Twórcy

autor

Ualyiev Z.

• Department of Mechanics, al-Farabi Kazakh National University, Almaty, Kazakhstan

autor

Kaltayev A.

• Department of Mechanics, al-Farabi Kazakh National University, Almaty, Kazakhstan

autor

Bekbauov B.

• Department of Mechanics, al-Farabi Kazakh National University, Almaty, Kazakhstan