نوع مقاله: مقاله پژوهشی
نویسندگان
1 دانشجوی کارشناسی ارشد فرآوری، دانشکده مهندسی معدن، متالورژی و نفت، دانشگاه صنعتی امیرکبیر، تهران، ایران
2 استاد دانشکده مهندسی معدن، متالورژی و نفت دانشگاه صنعتی امیرکبیر، تهران، ایران
3 کارشناس ارشد گروه فرآوری مواد، سازمان زمین‌شناسی و اکتشافات معدنی کشور، تهران، ایران
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
In this research, processing of Dalir area phosphate ore was investigated for reduction of its gangue minerals such as carbonates (mainly calcite and poorly dolomite) and silicates minerals. According to characterization studies, phosphate mineral content of the ore was sedimentary collophane mineral and the predominant constituents of the gangues were calcite and quartz. Liberation degree of phosphate mineral determined by using microscopic and sink and float tests to be 140 µm. Primary flotation tests (un-pre-concentrated) results did not have desirable grade and recovery. So, at first step, phosphates samples was subjected to calcination and scrupping process. After scrupping and removing calcium and magnesium oxide, anionic and cationic flotation tests were done. By using a combination methods (calcining, scrupping and flotation) the grade and recovery of final concentrate reaches to 31% and 62% respectively. Finally a Lab-flowsheet of processing was suggested
کلیدواژه‌ها [English]
امینی، ا.، عبداللهی، ه.، شمسی، پ.،1386- بررسی امکان پرعیار سازی فسفات موندون-گروه کانه آرایی سازمان زمین شناسی و اکتشافات معدنی کشور.
نمدمالیان، ع.، ملک زاده، ل.، 1363- گزارش اکتشافی کانسار دلیر (مطالعات نیمه تفضیلی)، سازمان زمین شناسی و اکتشافات معدنی کشور- طرح اکتشافات فسفات.
References
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