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AbstractAbstract
[en] Talmesi mine is located in Anarak mineral area in center of Iran and 25 Kilometers distance of north-west from this location. Meskani mine is located in 7 Kilometers west of it. Aforesaid mine has been fully in 1347 after several frequent working and non-working periods. While excavating these mines in the past, damps of minerals have been created in some parts of this region, according to which, the results obtained from mineral processing studies of the excavated minerals. The fundamental studies, confirmed the necessity of mixing different damps and the subsequent processing of resulted sample. Considering the importance of copper element (having grade of approximately %1.20) than other elements, the most emphasis put on the study of this element. The mineralogy studies revealed that the major minerals of copper sulphices include chalcocite, covelline, bornite and chalcopyrite (less than others) and copper mineral oxides comprise of malachite, azurite and cuprite, although copper is natively available as well. Among the gangues; quartz, calcite, dolomite, plagio feldspars, chlorite and fero oxides (less than others) could be introduced. Regarding the difference in special gravity between ores and gunges, the possibility of utilizing gravity methods for separation of these minerals seemed to be logical, but considering the degree of libration in copper minerals (which was determined as %80 in 50-75 microne) and the results of accomplished experiments by shaking table for coarse size and slime table for fine size grains, using the gravity methods was not totally successful. More studies were proceeded by floatation method of copper minerals, because of existing clay and oxide minerals, a desliming phase before floatation was considered to be inecessary. The effective factors of floatation such as optimum time of reduction, Ph, the collector type and quantity, etc. Were all checked and optimized. The basic concentrate could be produced with the degree of 9.37 and relative recovery of %72 as the best condition. The grade increase after several cleaning stages is considerable (%36.64 of copper) and recovery resultant (%62) is appropriate as well. Generally, the other major elements such as nickel, uranium, arsenic and cobalt, has been transformed along with copper to concentrate phase which necessitates the secondary separation activities (specially for uranium as the radioactivate element)
Original Title
Faravari-ye batele'ha-ye maaden-e Talmesi va Meskani
Primary Subject
Source
1999; 210 p; Available from Atomic Energy Organization of Iran; Thesis (M.S.)
Record Type
Miscellaneous
Literature Type
Thesis/Dissertation
Country of publication
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