عنوان مقاله [English]
Molybdenum metal with atomic number 42 belongs to the sixth group of periodic table of elements. This element has many applications in various industries. The most important molybdenum mineral is molybdenite with the formula MoS2. Different leaching methods are used for the extraction of molybdenum. One of the methods is bioleaching, which requires high potential for extraction of molybdenum, in addition to the application of other special leaching conditions. In this study, in order to use a bioleaching method for extraction of molybdenum from its mineral, the native thermophilic archaebacteria of Sulfolobus solfataricus and Acidianus ambivalens were isolated from the Narigan mine and registered on the NCBI site and they were gradually adapted for resistance against to the high potential. The result of the adaptation was positive and archaebacteria were able to resisting of potentials higher than 1000 mV and had a good growth and proliferation rate. In the following, this archaebacteria have been used for the bioleaching of the Narigan ore for the extraction of molybdenum. Due to the molybdenum recovery has a strong dependency to the redox potential, recovery was increased to 80%, by increasing potential from 400 mV to 1000 mV, but molybdenum recovery was 43% by non-adapted bacteria against high potential.