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نویسندگان مقالات پربازدید :
کنفرانس بین المللی علوم زمین - تهران
جزئیات رویداد
اینستاگرام تی پی بین
همایش ، رویداد ، ژورنال
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  • (quality improvement by iron oxide and titanium removal from industrial soil through magnetic separation, floatation and leaching (case study: abadeh kaolin

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 941
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     iron and titanium impurities cause reduction of economical kaolin value. abadeh kaolin mine located in the south west of iran contains huge amount of kaolin ore including approximately 10% iron oxide, 0.1% titanium oxide and good physical properties. in this research the possibility of impurities' reduction through magnetic separation, flotation, leaching and effective parameters on separation process has been considered. iron oxide was reduced equal 6% by applying magnetic separation test. flotation test was effective on titanium removal. in this case ph was increased from 8 to 10, but the iron oxide grade was not changed. in the optimum condition of flotation tests, a concentrate contains 0.08% titanium oxide was obtained. leaching process using sulfuric acid, sodium silicate, sodium hydrosulfite, alum and hydrogen peroxide in different temperatures was applied. the optimum condition of leaching was achieved through particle size50: micron, temperature: 85°c, acid concentration: 35%, influence time: 1 hour and pulp density: 20%. in the optimum condition a concentrate with specifications of iron oxide's grade: 0.54% and weighted recovery of 78.9% was achieved.

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