Production of titanium tetrachloride (TiCl4) from titanium ores: A review
محل انتشار: فصلنامه پلی اولفین ها، دوره: 4، شماره: 2
سال انتشار: 1396
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 890
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شناسه ملی سند علمی:
JR_POJ-4-2_001
تاریخ نمایه سازی: 2 آبان 1396
چکیده مقاله:
Titanium (Ti) is the ninth most abundant element on earth. The titanium mineral ores are widely distributed in different parts of the world. The two main ores of titanium include rutile (TiO2) and ilmenite (FeO.TiO2). It is aimed to provide the readers with an insight to the main processes currently employed to extract and recover titanium tetrachloride (TiCl4) from different titanium ores. Due to the crucial importance of TiCl4 catalyst in the synthesis and polymerization of polyolefins, the present work examines the literature and developments made in the processing of ilmenite and rutile ores for the extraction of TiCl4. The attention has been paid to the chlorination processes and the main parameters affecting the recovery of TiCl4. Different approaches developed to date are reviewed. Different processes, reaction mechanisms and conditions as well as the kinetic models developed for extraction and purification of TiCl4 in fluidized bed reactors are also reviewed. A literature survey on the combined fluidized bed reactor systems developed for achieving a high-grade synthetic rutile via selective chlorination of low-grade titanium ores having high metal oxides content such as magnesium oxide (MgO) and calcium oxide (CaO) is also reported. Different strategies adopted to avoid agglomeration process during the extraction process are discussed too.
کلیدواژه ها:
نویسندگان
Hossein Bordbar
Iran Polymer and Petrochemical innstitute,P.O Box ۱۴۹۶۵-۱۱۵, Tehran, iran
Ali Akbar Yousefi
Iran Polymer and Petrochemical Institute,P.O Box ۱۴۹۶۵-۱۱۵, Tehran, iran
Hossein Abedini
Iran Polymer and Petrochemical Institute, P.O Box ۱۴۹۶۵-۱۱۵, Tehran, iran