نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشکده مهندسی شیمی، نفت، گاز، دانشگاه سمنان، صندوق پستی: 19111-35131، سمنان ـ ایران
2 پژوهشکده چرخه سوخت هستهای، پژوهشگاه علوم و فنون هستهای، سازمان انرژی اتمی ایران، صندوق پستی: 8486-11365، تهران- ایران
چکیده
در این پژوهش، استخراج یونهای کبالت از محیط غیرآبی با استفاده از استخراجکننده آلیکوات 336 انجام گردید. اثر پارامترهای مختلف بر فرایند استخراج غیرآبی شامل غلظت اتیلن گلیکول، غلظت استخراجکننده، غلظت هیدروکلریک اسید و غلظت یونهای کبالت در محلول آبی با استفاده از روش طراحی آزمایش مورد بررسی قرار گرفت. با توجه به مطلوبیت یک و درصد استخراج بیشینه کبالت، شرایط بهینه شامل درصد حجمی آلیکوات 336 (2/19 درصد)، غلظت کبالت (ppm 4/899)، درصد حجمی اتیلن گلیکول (3/65 درصد) و غلظت هیدروکلریک اسید (81/7 مولار) حاصل گردیدند. اعتبار دادهها با حداقل خطا بین دادههای پیشبینی شده (82/94 درصد) و دادههای آزمایشگاهی (36/99 درصد) مشاهده گردید.
کلیدواژهها
عنوان مقاله [English]
Investigation of effective parameters in the extraction of cobalt ions from non-aqueous medium using Aliquat336 extractant
نویسندگان [English]
- F. Badihi 1
- M. Asadollahzadeh 2
- A. Hghighi-Asl 1
- R. Torkaman 2
1 Faculty of Chemical, Petroleum and Gas Engineering, Semnan University, P.O.Box: 35131-19111, Semnan – Iran
2 Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, AEOI, P.O.Box: 11365-8486, Tehran - Iran
چکیده [English]
Using Aliquat336 extractant, cobalt ions were extracted from a non-aqueous medium. The effect of different parameters on the non-aqueous extraction process including ethylene glycol concentration, extractant concentration, hydrochloric acid concentration, and cobalt ions concentration in aqueous solution was investigated using the experimental design approach. According to the desirability of one and the maximum extraction efficiency of cobalt ions, the optimal conditions include volume percentage of Aliquat336 (19.2%), cobalt concentration (899.4 ppm), volume percentage of ethylene glycol (65.3%) and hydrochloric acid concentration (7.81 M) were obtained. The validity of the data was observed with minimal error between the predicted data (94.82%) and the experimental data (99.36%).
کلیدواژهها [English]
- Non-aqueous medium
- Cobalt
- Aliquat336 extractant
- Ethylene glycol
- Hydrochloric acid
- Experimental design
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