TY  - JOUR
AU  - Pastukhov, A. M.
AU  - Rychkov, V. N.
AU  - Smirnov, A. L.
AU  - Skripchenko, S. Y.
AU  - Poponin, N. A.
PY  - 2014//
TI  - Purification of in situ leaching solution for uranium mining by removing solids from suspension
JO  - Minerals Engineering
SP  - 1
EP  - 4
VL  - 55
KW  - Bag filter
KW  - Firm particles
KW  - In situ leaching mining
KW  - Injection wells
KW  - Intake capacity
KW  - Purification
N2  - This study investigated the process of in situ leaching (ISL) method of uranium mining, and the removal of solid particles from the leaching solution. Investigations were carried out for 4months. The content of firm suspensions in the productive solutions arriving from the well field was up to standard of 3–5mg/l. After keeping in a settler of productive solutions within one hour concentration of suspensions decreases to 2–2.5mg/l. To increase the life of the wells requires more fine purification of the ISL solutions. The best results can be obtained but using filtration. Bag filters were used in experiments carried out at the extraction site. All samples of polypropylene bag filter was produced by the Tamfelt Corporation. The best results were obtained for fabrics S-51M03-L2K4 (pore size 3μm). After three month of trials following indicators of wells work were fixed: on the trial cell decrease in intake capacity did not occur; on the other cells of well field injectability of holes for the same period of time decreased for 15–40%. The results illustrated the high efficiency of this method, which allows injection wells to reach a constant intake capacity, making it possible for technological cells to achieve a constant productivity and balance. Purification of solutions allows to reduce acidulation term of new technological cells from 3–4 to 1.5–2months.
SN  - 0892-6875
UR  - https://www.sciencedirect.com/science/article/pii/S0892687513002690
N1  - exported from refbase (http://www.uhydro.de/base/show.php?record=204), last updated on Fri, 26 Jan 2024 13:19:04 +0100
ID  - Pastukhov_etal2014
ER  -