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نویسندگان مقالات پربازدید :
کنفرانس بین المللی علوم زمین - تهران
جزئیات رویداد
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همایش ، رویداد ، ژورنال
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  • effects of physical and chemical parameters on frothability of commercial frothers

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 982
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     effects of various physical and chemical parameters on frothability of frother contaminated solution were investigated using a column froth-meter. results showed that frothability increases by increasing the frother concentration and aeration rate. frothers with higher molecular weight give more frothing capacity as well as those include more oxygenated group in their structure. although frothers used in these studies were neutral type, frothability was found to increase at acidic condition. addition an electrolyte, nacl, increased frothability to a significant manner likely due to the improvement of film elasticity at the bubbles' surfaces. better frothing action was also observed as solution volume was increased. this enhanced frothability could be ascribed to shifting air regime from turbulence to steady-state by increasing the solution volume as visually observed. the results reported in this investigation indicate that frothability of a frother in a flotation system can be influenced by different parameters which should be considered during evaluation and selection a frother for a specific flotation system.

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