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| 1 | Kinetics of chemical leaching of chalcopyrite from low grade copper ore: behavior of different size fractions显示文摘The kinetics of the chemical leaching of copper from low grade ore in ferric sulfate media was investigated using the constrained least square optimization technique. The experiments were carried out for different particle sizes in both the reactor and column at constant oxidation-reduction potential (Eh), pH values, and temperature. The main copper mineral was chalcopyrite. About 40% of Cu recovery is obtained after 7 d of reactor leaching at 85℃ using -0.5 mm size fraction, while the same recovery is obtained at 75℃ after 24 d. Also, about 23% of Cu recovery is obtained after 60 d of column leaching for +4--8 mm size fraction whereas the Cu recovery is as low as about 15% for +8--12.7 and +12.7--25 mm size fractions. A 4-stage model for chalcopyrite dissolution was used to explain the observed dissolution behaviors. The results show that thick over-layers of sulphur components cause the parabolic behavior of chalcopyrite dissolution and the precipitation of Fe3+ plays the main role in chalcopyrite passivation. In the case of coarse particles, transformation from one stage to another takes a longer time, thus only two stages including the initial reaction on fresh surfaces and S0 deposition are observed. | H. Naderi M. Abdollahy N. Mostoufi M.J. Koleini S.A. Shojaosadati Z. Manafi | 2011 | International Journal of Minerals,Metallurgy and Materials2011，18，6： | 6 |
| 2 | Removal of copper from molybdenite concentrate by mesophilic and extreme thermophilic microorganisms显示文摘Mixed mesophilic and extreme thermophilic bioleaching were evaluated to remove copper from the molybdenite concentrate.Bioleaching tests were carried out in shake flasks and in a 50-L bioreactor.The shake flask tests were performed with different inoculum size,solids density,pH.and temperature in order to identify optimum conditions.The highest amount of copper elimination,75%was obtained with extreme thermophilic microorganisms(at 12%inoculation,10%solids,65℃and a pH of 1.5).The highest copper elimination by mesophilic microorganisms was 55%(at 12%inoculation,5%solids,30℃at pH 2).The optimum conditions in shake flask tests were applied to 7 days batch tests in a50-L bioreactor.Extreme thermophilic experiment gave the best copper elimination of 60%(at 12%inoculation,10%solids,65℃and pH 1.5).Mesophilic test removed 50%of the copper(at 12%inoculation,10%solids,35℃at pH 2). | Abdollahi Hadi Manafi Zahra Shafaei Sied Ziaedin Noaparast Mohammad Manafi Moorkani Navid | 2013 | International Journal of Mining Science and Technology2013，23，6： | 4 |
| 3 | Effect of volume fraction and particle size of alumina reinforcement on compaction and densification behavior of Al–Al 2 O 3 nanocomposites显示文摘 | S.S. Razavi-Tousi R. Yazdani-Rad S.A. Manafi | 2010 | Materials Science & Engineering A2010，，3： | 1 |
| 4 | Low temperature synthesis of multi-walled carbon nanotubes via a sonochemical/hydrothermal method 显示文摘 | Manafi S Nadali H Irani H R | 2008 | Materials Letters2008，62，26： | 1 |
| 5 | Evaluation of diffusion welding of 6061 aluminum and AZ31 magnesium alloys without using an interlayer 显示文摘 | JAFARIAN M KHODABANDEH A MANAFI S | 2015 | Materials and Design2015，65，： | 1 |
| 6 | Is endoscopic nodulargastritis associated with premalignant lesions-显示文摘 | Niknam R Manafi A Maghbool M | 2015 | Neth J Med2015，73，5： | 1 |
| 7 | The effect of skin traction on preoperative pain and need for analgesics in pa- tients with intertrochanteric fractures: a randomized clinical trial 显示文摘 | MANAFI RASI A AMOOZADEH F KHANI S | 2015 | Arch Trauma Res2015，4，12： | 1 |
| 8 | Comparison of intertrochanteric fracture fixation with dynamic hip screw and bipolar hemiarthroplasty techniques显示文摘 | Emami M Manafi A Hashemi B | 2013 | Arch Bone Jt Surg2013，1，1： | 1 |
| 9 | Evaluation of diffusion welding of 6061 aluminum and AZ31 magnesium alloys without using an interJayer显示文摘 | JAFARIAN M KHODABANDEH A MANAFI S | 2015 | Materials and Design2015，65，： | 1 |
| 10 | Effect of volume fraction and particle size of alumina reinforcement on compaction and densification behavior of Al-Al2O3 nanocomposites 显示文摘 | Tousi S S Rad R Manafi S A | 2011 | Materials Science and Engineering A2011，528，： | 1 |
| 11 | Fluorogenic and chromogenic enzyme substrates in culture media and identification tests 显示文摘 | Manafi M | 1996 | Int J Food Microbiol1996，31，3： | 1 |
| 12 | Comparison of intertrochanter- ic fracture fixation with dynamic hip screw and bipolar hemiarthro- plastytechniques 显示文摘 | Emami M Manafi A Hashemi B | 2013 | Arch Bone Joint Surg2013，1，1： | 1 |
| 13 | The Effect of Skin Traction on Preoperative Pain and Need for Analgesics in Patients With Intertrochanteric Fractures : A Randomized Clinical Trial 显示文摘 | Manafi Rasi A Amoozadeh F Khani S | 2015 | Arch Trauma Res2015，4，12： | 1 |
| 14 | Comparison of intertrochanteric fracture fixation with dynamic hip screw and bipolar hemiarthroplasty techniques 显示文摘 | Emami M Manafi A Hashemi B | 2013 | Arch Bone Jt Surg2013，1，1： | 1 |
| 15 | Unacceptable results with an accepted soft tissue filler: polyacrylamide hydrogel 显示文摘 | Manafi A Emami AH Pooli AH | 2010 | Aesthet Plast Surg2010，34，4： | 1 |
| 16 | Phase behavior prediction of petroleum fluids with minimum characterization data显示文摘 | Hussain Manafi G Ali Mansoori Sirus Ghotbi | 1999 | Journal of Petroleum Science and Engineering1999，，22： | 1 |
| 17 | Bioflotation of Sarcheshmeh copper ore using Thiobacillus ferrooxidans bacteria 显示文摘 | HOSSEINI T R KOLAHDOOZAN M TABATABAEI Y S M OLIAZADEH M NOAPARAST M ESLAMI A MANAFI Z ALFANTAZI A | 2005 | Miner Eng2005，18，： | 1 |
| 18 | Flunarizine in the prevention of cassical migraine: a placebo-controlled evaluation 显示文摘 | Mentenopoulos G Manafi T Logothetis J | 1985 | Cephalalgia1985，5，2： | 1 |
| 19 | Active immunization using exotoxin A confers protection against Pseduomonas aeruginosa infection in a mouse burn model显示文摘 | Manafi A Kohanteb J Mehrabani A | 2009 | ISMC Microbiol2009，9，： | 1 |
| 20 | Mediating Role of Customer Satisfaction in Relationships between Employee Satisfac- tion and Financial Performance 显示文摘 | Manafi M Gheshmi R Hojabri R Fotoohnejad S | 2011 | Interdisciplinary Journal of Contemporary Research in Business2011，3，7： | 1 |
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