TY - JOUR ID - 55239 TI - Studies on Processability of Iranian Bauxite Resources to Produce Alumina in Jajarm Alumina Beneficiation Plant JO - Scientific Quarterly Journal of Geosciences JA - GSJ LA - en SN - 1023-7429 AU - Gerayloo, O. AU - Hosseini, S. H. AU - Sarghaini, J. AU - Salimi, R. AD - Sama Technical and Vocational Training College, Islamic Azad University, Shahrood Branch, Shahrood, Iran AD - Islamic Azad University, Tehran South Branch, Department of Mining Engineering, Tehran, Iran AD - Jajarm Alumina Complexes, Research and Development Section, Jajarm, Iran Y1 - 2011 PY - 2011 VL - 20 IS - 80 SP - 113 EP - 118 KW - Bauxite KW - Alumina KW - Sedimentation velocity of red mud KW - dissolution efficiency KW - Jajarm Mine KW - Shah-Bolaghi Mine KW - Sorkh-Cheshmeh Mine DO - 10.22071/gsj.2011.55239 N2 - Jajarm bauxite mine as a largest known bauxite ore reserves with more than twenty million tons of diasporic bauxite, located in the north of Khorasan province, Iran. This bauxite mine cannot provide the suitable feed for at least twenty tears. Therefore, the possibility of using other bauxite deposits such as Shah-Bolaghi bauxite mine in Tehran province and Sorkh-cheshmeh mine in the north of Khorasan province was investigated. These studies were carried out based on the dissolution and sedimentation velocity of red mud. The results show that using these deposits separately is not applicable, because of low dissolution and/or low sedimentation velocity of red mud. The other parameters such as dissolution temperature, the amount of lime and Na2Oc must be carefully controlled to have the better results.  Accordingly, a mixture of 50-50 Jajarm and Shah-Bolaghi bauxite ore has had the better performance with higher dissolution efficiency and also the lesser alumina amount in red mud. UR - http://www.gsjournal.ir/article_55239.html L1 - http://www.gsjournal.ir/article_55239_607cdaf93a0b1686a7c8ff31b3addd9e.pdf ER -