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| 1 | Processing of refractory materials using various magnesium sources derived from Zinelbulak talc-magnesite显示文摘Magnesia(MgO) is widely used in the production of refractory materials due to its high melting point,high thermal shock,and excellent slag resistance.The properties of refractory materials depend upon magnesia sources and processing parameters.In this work,three different magnesium sources,namely,magnesium hydroxide concentrate,magnesium carbonate concentrate,and intermediate flotation concentrate,were obtained from the Zinelbulak talc-magnesite,Uzbekistan,by causticization-hydration and flotation processes,respectively.A series of refractory materials were prepared on the basis of these magnesium sources,and their effects on physico-mechanical properties and microstructures were investigated as a function of sintering temperature,molding pressure,and the particle size of magnesium sources.The experimental results showed that a refractory material obtained from the magnesium hydroxide concentrate at 1600℃ for 4 h demonstrated favorable parameters due mainly to a higher degree of contact among fine particles.The results obtained from X-ray diffraction and optical microscopy confirmed the presence of periclase and forsterite as the predominant phases in refractory specimens.The prepared refractory materials meet the requirements of the State Standards(Nos.4689-94 and 14832-96) for magnesia and forsterite refractories,respectively.It is,therefore,suggested herein that the use of different magnesium sources derived from the Zinelbulak talc-magnesite will offer the potential to provide economic benefits in the refractory industry. | Mirabbos Hojamberdiev Pulat Arifov Kamil Tadjiev Yun-hua Xu | 2011 | International Journal of Minerals,Metallurgy and Materials2011，18，1： | 3 |
| 2 | Characterization and processing of talc-magnesite from the Zinelbulak deposit显示文摘The characteristics of talc-magnesite from the Zinelbulak deposit(Uzbekistan) were investigated via X-ray diffraction, differential thermal analysis,infrared spectroscopy and optical microscopy.The mineralogical composition of the Zinelbulak talc-magnesite consists of 52 wt.%talc,43 wt.%carbonates and 5 wt.%of the iron-containing minerals magnetite,siderite and chlorite.Petrographic analysis confirmed the presence of carbonates in two forms:magnesite and breunnerite.Grindability tests revealed that talc and magnesite particles are completely separated after a grinding process carried out for 10~12 min.The distribution of the yield of talc and magnesite,as a function of the particle size,shows an irregular feature in that a comparatively coarser sample(>0.1 mm) is richer in magnesite and poor in talc while a comparatively finer sample(<0.1 mm) has a composition poorer in magnesite.The dressability of the Zinelbulak talc-magnesite was tested using conventional gravity concentration,flotation and electromagnetic separation.Gravity concentration was found to be the most economic initial process for the complete separation of magnesium carbonate and talc.Subsequent flotation and magnetic separation techniques could further increase the yield of high quality magnesite and talc.Refractory samples prepared by heating the separated magnesite at 1600℃for 2 h met the State Standards for refractory materials. | HOJAMBERDIEV Mirabbos ARIFOV Pulat TADJIEV Kamil XU Yunhua | 2010 | Mining Science and Technology2010，20，3： | 2 |
| 3 | DDM: decision support system for hierarchical dynamic decision making显示文摘 | Badiru A B Pulat P S Kang M | 1993 | Decision Support System1993，10，1： | 1 |
| 4 | Intelligent search-based selection of sample points for straightness and flatness estimation显示文摘 | BADAR M A RAMAN S PULAT P S | 2003 | Journal of Manufacturing Science and Engineering2003，125，： | 1 |
| 5 | Surface Modification of PU Membranes by Graft Copolymerization with Acrylamide and Itaconic Acid Monomers 显示文摘 | Mehlika Pulat Dogan Babayigit | 2001 | Polymer Testing2001，20，： | 1 |
| 6 | A computer-aided panel layout procedure for process control jobs--LAYGEN显示文摘 | Pulat B M Ayoub M A | 1985 | IIE Transactions1985，17，1： | 1 |
| 7 | Sequential antibiotic and growth factor releasing chitosan - PAAm semi - IPN hydrogel as a no- vel wound dressing显示文摘 | Pulat M Kahraman AS Tan N | 2013 | J Biomater Sci Polym Ed2013，24，7： | 1 |
| 8 | Graft copolymerization of PU membranes with acrylic acid and crotonic acid using benzoyl peroxide initiator显示文摘 | Pulat M Babaying it D | 2001 | Journal of Applied Polymer Science2001，80，14： | 1 |
| 9 | Mechanism and modeling of shallow soil slope stability during high intensity and short duration rainfall显示文摘 | Egeli I Pulat H F | 2011 | Scientia Iranica2011，18，6： | 1 |
| 10 | Graft copolymerization of n-vinyl-2-pyrrolidone on dimethyl sulfoxide pretreated poly(ethylene terephthalate) films using azobisisobutyronitrile initiator显示文摘 | Sanli O Pulat E | 1993 | J Appl Polym Sci1993，47，1： | 1 |
| 11 | DDM: Decision support system for hierarchical dynamic decision making显示文摘 | Badiru A B Pulat P S Kang M | 1993 | Decision Support System1993，10，1： | 1 |
| 12 | 显示文摘 | Mamatkulov Shavkat L Khabibullaev Pulat K Netz Roland R | 2004 | Langmuir2004，20，11： | 1 |
| 13 | Benzoyl peroxide initiated graft copolymerization of poly(ethylene terephthalate) fibers with acrylamide显示文摘 | Sacak M Pulat E | 1989 | J Appl Polym Sci1989，38，5： | 1 |
| 14 | Experimental verification of manufacturing error pattern and its utilization in form tolerance sampling 显示文摘 | Badar M A Raman S Pulat S P | 2005 | International Journal of Machine Tools and Manufacture2005，45，1： | 1 |
| 15 | Mechanism and modeling of shallow soil slope stability during high intensity and short duration rainfall显示文摘 | Egeli I Pulat H F | | Scientia Iranica Transaction A:Civil Engineering0，，： | 1 |
| 16 | A Computer-aided PanelLayout Procedurefor Process Control Jobs-LAYGEN显示文摘 | PULAT B M AYOUB M A | 1985 | IIE Transactions1985，17，1： | 1 |
| 17 | Nu- merical investigation of turbulent impinging jet cooling of a constant heat flux surface显示文摘 | ISMAN M K PULAT E ETEMOGLU A B | 2008 | Numerical Heat Tran- sfer Part A: Applications2008，53，10： | 1 |
| 18 | Intelligent search-based selection of sample points for straightness and flatness estimation显示文摘 | AFFAN BADAR M RAMAN S PULAT P S | 2003 | Manuf Sei Eng2003，125，2： | 1 |
| 19 | Mechanism and Modelling of Shallow Soil Slope Stability During High Intensity and Short Duration Rainfall显示文摘 | EGELI I PULAT H F | | 0，，06： | 1 |
| 20 | Benzoyl peroxide initiated graft copolymerization of poly(ethylene terephthalate)fibers with acrylamide显示文摘 | Sacak M Pulat E | 1989 | J Appl Polym Sci1989，38，5： | 1 |
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