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| 1 | Ag recovery from copper anode slime by acid leaching at atmospheric pressure to synthesize silver nanoparticles显示文摘In this paper, recovery of silver from anode slime of Sarcheshmeh copper complex in Iran and subsequent synthesis of silver nanoparticles from leaching solution is investigated. Sarcheshmeh anode slime is mainly consisted of Cu, Ag, Pb and Se. Amount of Ag in the considered anode slime was 5.4%(by weight).The goal was to recover as much as possible Ag from anode slime at atmospheric pressure to synthesize Ag nanoparticles. Therefore, acid leaching was used for this purpose. The anode slime was leached with sulfuric and nitric acid from room to 90 °C at different acid concentrations and the run which yielded the most recovery of Ag was selected for Ag nanoparticles synthesis. At this condition, Cu, Pb and Se are leached as well as Ag. To separate Ag from leach solution HCl was added and silver was precipitated as AgCl which were then dissolved by ammonia solution. The Ag nanoparticles are synthesized from this solution by chemical reduction method by aid of sodium borohydride in the presence of PVP and PEG as stabilizers. The synthesized Ag nanoparticles showed a peak of 394 nm in UV–vis spectrum and TEM images showed a rather uniform Ag nanoparticles of 12 nm. | Atefeh Khaleghi Sattar Ghader Dariush Afzali | 2014 | International Journal of Mining Science and Technology2014，24，2： | 7 |
| 2 | A model for temperature and particle volume fraction effect on nanofluid viscosity显示文摘 | Marziehsadat Hosseini Sattar Ghader | 2010 | Journal of Molecular Liquids2010，153，： | 1 |
| 3 | Numerical solution of particle size distribution equation:Rapid expansion of supercritical solution(RESS)process显示文摘The present study aimed to numerically simulate the rapid expansion of the supercritical solution(RESS)process including particle generation,hydrodynamics,and solving the population balance equation(PBE)to predict the particle-size distribution(PSD)of solid-supercritical carbon dioxide binary systems.Energy,momentum,and mass equations,in addition to the extended generalized Bender equation of state(EoS),were applied to predict the hydrodynamic behavior of a supercritical solution under several operating conditions using a nozzle and expansion vessel.The tetraphenylporphyrin(TBTPP)solubility in supercritical carbon dioxide was calculated using the Peng-Robinson EoS/Kwak-Mansoori as a mixing rule.Subsequently,TBTPP,aspirin,ibuprofen,and salicylic acid nucleation as well as the supersaturation rate were calculated.Finally,we solved the time dependence of the parameters of the size distribution numerically.The established models are compared over a wide parameter range using a reference model that refers to the method of moment log-normal size distribution functions through the RESS process to predict a solid PSD.The results obtained are presented with and without coagulation phenomena.The average absolute percent deviation of solubility of TBTPP was 3.98,and the hydrodynamic behavior of supercritical carbon dioxide showed a similar trend as the results presented in the published research work.Furthermore,a particle size distribution prediction using coagulation showed acceptable agreement with the experimental PSDs. | Hamidreza Bagheri Hassan Hashemipour Vahab Ghalandari Sattar Ghader | 2021 | Particuology2021，19，4： | 1 |
| 4 | 甲烷氧化偶联锂/氧化镁催化剂和纳米催化剂显示文摘采用初湿浸渍和溶胶凝胶法分别制备了Li/MgO催化剂和Li/MgO纳米催化剂.比较两种Li/MgO催化剂对于甲烷氧化偶联反应的催化性能.采用x射线衍射、BET吸附和透射电镜进行了表征.在973-1073K和总压力为101kPaF对催化剂进行了测试.实验结果表明,Li/MgO纳米催化剂比普通催化剂对于甲烷氧化偶联反应表现为更高的甲烷转换率。 | Ali Farsi Ali Moradia Sattar Ghader Vahid Shadravan | 2011 | Chinese Journal of Chemical Physics2011，24，1： | 1 |
| 5 | A model for tempera- ture and particle volume fraction effect on nanofluid viscosity 显示文摘 | Marziehsadat Hosseini Sattar Ghader | 2010 | J Mol Liquids2010，153，： | 1 |
| 6 | A simple kinetic model for oxidative coupling of methane over La_(0.6)Sr_(0.4)Co_(0.8)Fe_(0.2)O_(3-δ) nanocatalyst显示文摘A simplified kinetic model for the oxidative coupling of methane over a La0.6Sr0.4Co0.8Fe0.2O3-δ nanocatalyst is presented. The kinetic model was developed by experimental data in a catalytic micro-reactor covering a wide range of reaction conditions (0.04 | Ali Farsi Sattar Ghader Ali Moradi Seyed Soheil Mansouri Vahid Shadravan | 2011 | Journal of Natural Gas Chemistry2011，20，3： | 0 |
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