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Studying the efficiency of lime-soda sinter process to extract alumina from colored kaolinite ores using factorial technique of design of experiments
المؤلفون المشاركون
al-Ujayl, Abd al-Wahhab Abd al-Razzaq
Jumah, Ajhin Hasan
Tumah, Hijran Zayn al-Abidin
المصدر
Engineering and Technology Journal
العدد
المجلد 36، العدد 5A (31 مايو/أيار 2018)، ص ص. 500-508، 9ص.
الناشر
تاريخ النشر
2018-05-31
دولة النشر
العراق
عدد الصفحات
9
التخصصات الرئيسية
العلوم الهندسية والتكنولوجية (متداخلة التخصصات)
الموضوعات
الملخص EN
As the increasing demand for alumina in recent years with the result diminishing reserve of bauxite, the need to secure a domestic raw material base is driving research in new technologies to process low grade ores into alumina, with the intention that these technologies will lead to a significant reduction of bauxite and alumina transportation costs, allow the extraction of more valuable components from the ore and reduce environmental impact.
Clays are types of the low-grade aluminum ores, they're also well abundant which make them a potential substitutes for Bauxite.
In this work, lime soda sinter process was adopted for extracting alumina from kaolinitic claystone from Al-Ga'ara formation (Duekhla) quarry in western Iraq.
The operation efficiency of sintering was studied in which the whole process has been done with three stages: the sintering process for the raw materials, leaching and carbonizing processes to precipitate and separate the alumina from the leach pregnant solution .
Factorial technique of Design of Experiments (DOE) module in Minitab was used as a principal methodology to examine the sintering efficiency over alumina extraction.
The results obtained showed that the optimum parameters for the sintering operation were CaO/SiO2 molar ratio of 2.2, Na2O/Al2O3 molar ratio of 1.2, sintering temperature at 1213 °C for 90 min.
The sintered materials were leached with sodium carbonate solution, and sodium aluminate solution was obtained.
By bubbling carbon dioxide gas into this extract solution aluminum hydroxide [Al(OH)3] has been precipitated and on calcination at 1200 °C for 2 hrs, alpha alumina (α-Al2O3) was obtained with purity of 98.5 %.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Tumah, Hijran Zayn al-Abidin& Jumah, Ajhin Hasan& al-Ujayl, Abd al-Wahhab Abd al-Razzaq. 2018. Studying the efficiency of lime-soda sinter process to extract alumina from colored kaolinite ores using factorial technique of design of experiments. Engineering and Technology Journal،Vol. 36, no. 5A, pp.500-508.
https://search.emarefa.net/detail/BIM-831247
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Tumah, Hijran Zayn al-Abidin…[et al.]. Studying the efficiency of lime-soda sinter process to extract alumina from colored kaolinite ores using factorial technique of design of experiments. Engineering and Technology Journal Vol. 36, no. 5A (2018), pp.500-508.
https://search.emarefa.net/detail/BIM-831247
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Tumah, Hijran Zayn al-Abidin& Jumah, Ajhin Hasan& al-Ujayl, Abd al-Wahhab Abd al-Razzaq. Studying the efficiency of lime-soda sinter process to extract alumina from colored kaolinite ores using factorial technique of design of experiments. Engineering and Technology Journal. 2018. Vol. 36, no. 5A, pp.500-508.
https://search.emarefa.net/detail/BIM-831247
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 508
رقم السجل
BIM-831247
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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