بازیابی روی از غبار کوره ی قوس الکتریکی به کمک کربن و فروسیلیسیم

مهندسی متالورژی و مواد

مقاله 5، دوره 30، شماره 2 - شماره پیاپی 20، 1398، صفحه 43-56   

نوع مقاله: علمی و پژوهشی

شناسه دیجیتال (DOI): 10.22067/ma.v30i2.59564

نویسندگان

محسن موسوی نژاد¹؛ احد ضابط^{* 2}

¹مجتمع آموزش عالی گناباد

²دانشگاه فردوسی مشهد

چکیده

در این تحقیق، یک فرایند دو مرحله­ای برای بازیابی روی از غبار کوره­ی قوس الکتریکی به کمک کربن و فروسیلیسیم ارائه شده است. نتایج نشان می­دهد که جایگزینی کربن با مقدار کافی از سیلیسیم باعث تشکیل سرباره مذاب شده و نرخ احیاء را تا سه برابر افزایش داده است. نتـــایج همچنین نشان می­دهد دمای موضعی نمونه­ها در اثر انجام واکنش­های گرمازای سیلیکوترمی تا 1100 درجه سانتیگراد افزایش می­یابد. نتیجه­گیری می­شود فاز مذاب سرباره سینتیک فرایند احیاء را از دو طریق افزایش می­دهد. اول از طریق انحلال جزئی کربن  که منجر به انجام واکنش های احیاء به صورت همگن در یک فاز می­گردد. دوم با فراهم نمودن فصل مشترک گسترده بین اکسیدهای فلزی و مواد احیاء­کننده.

کلیدواژه‌ها

غبار کوره قوس الکتریکی؛ بازیابی روی؛ احیای کربوترمی؛ فروسیلیسیم؛ سرباره

سایر فایل های مرتبط با مقاله

5- zabet_AK_EDITS.pdf

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