The Effect of Solution Density on the Synthesis of Magnesium Borate from Boron-Gypsum
Boron-gypsum is a waste which occurs in the boric acid production process. In this study, the boron content of this waste is evaluated for the use in synthesis of magnesium borates and such evaluation of this kind of waste is useful more than storage or disposal. Magnesium borates, which are a sub-class of boron minerals, are useful additive materials for the industries due to their remarkable thermal and mechanical properties. Magnesium borates were obtained hydrothermally at different temperatures. Novelty of this study is the search of the solution density effects to magnesium borate synthesis process for the increasing the possibility of borongypsum usage as a raw material. After the synthesis process, products are subjected to XRD and FT-IR to identify and characterize their crystal structure, respectively.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1096445Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1709
 S.U. Bayca, "Recovery of boric acid from colemanite waste by sulfuric acid leaching and crystallization”, in 2nd International Symposium on Sustainable Development, Sarajevo, 2010, pp. 793-804.
 R. B. Kistler, and C. Helvacı, "Boron and borates”, in Industrial Minerals and Rocks, 6 th Edition. Society of Mining, Metalurgy and Exploration, Inc., 1994, pp. 171-186.
 A. Erdogdu, "Dissolutıon of colemanite and crystallization of gypsumdurıng boric acıd production in a batch reactor”, A Thesıs Submıtted ToThe Graduate School Of Natural And Applıed ScıencesOfMıddle East Technıcal Unıversıty By In Partıal Fulfıllment Of The Requırements For The Degree Of Master Of ScıenceIn Chemıcal Engıneerıng, June 2004.
 I. E. Elbeyli and S. Piskin, "Kinetic study of the thermal dehydration of borogypsum”, Journal of Hazardous Materials, vol. B116, pp. 111–117, 2004.
 I. E. Elbeyli, E.M. Derun, J. Gulen and S. Piskin, "Thermal analysis of borogypsum and its effects on the physical properties of portland cement”, Cement and Concrete Research, vol. 33 pp. 1729–1735, 2003.
 I. E. Elbeyli and S. Piskin, "Thermal dehydration kinetics of gypsum and borogypsum under non-isothermal conditions”, Chinese Journal of Chemical Engineering, vol.12, pp.302-305, 2003.
 K. Othmer, "Boron Oxides, Boric Acid, and Borates”, in Encyclopedia of Chemical Technology, 4th edition, vol. 4, pp. 365-413.
 A. Obut and Ismail Girgin, "Synthesis and characterization of magnesium borates”,in. Proc. 2.Int. Boron Symposium, Eskisehir, 2004, pp. 133-138.
 F. T. Senberber, A. S. Kipak, E. M. Derun and S. Pişkin, "Boric Acid Waste (Boron-Gypsum) Evaluation at Different Mole Ratios for Magnesium Borate Synthesis” in First International Symposium on Innovative Technologies for Engineering and Science, Sakarya, 2013, pp. 58-62.
 W. Zhu, G. Li, Q. Zhang, L. Xiang and S. Zhu, "Hydrothermal mass production of MgBO2(OH) nanowhiskers and subsequent thermal conversion to Mg2B2O5nanorods for biaxially oriented polypropylene resins reinforcement” Powder Technology, vol. 203, pp. 265–271, 2010.
 L. Zhihong andH. Mancheng"Synthesis and thermochemistry of MgO.3B2O3.3.5H2O”ThermochimicaActa, vol. 403 pp.181–184, 2003.
 F. T. Senberber, A. S. Kipcak, E. M. Derun and S. Piskin, "Magnesium Borate Synthesis from Boric Acid Sludges at Different Mole Ratios By Hydrothermal Method”, Advanced Materials World Congress, Izmir, 2013, pp. 121.