Biological Copper Extraction from Copper Smelters Dust

Publish Year: 1386
نوع سند: مقاله کنفرانسی
زبان: English
View: 2,081

This Paper With 9 Page And PDF Format Ready To Download

  • Certificate
  • من نویسنده این مقاله هستم

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این Paper:

شناسه ملی سند علمی:

ICHEC05_218

تاریخ نمایه سازی: 7 بهمن 1386

Abstract:

Biological copper extraction from the copper flue dust in the smelters of Sarcheshmeh Copper Complex has been investigated. At the present, the dust is recycled to the smelters which reduces their efficiencies and increases the required energy for the smelting process. In this study, bioleaching of the copper dust in a continuous system including a feed tank and aerated stirred tank bioreactors was examined as an alternative process. The effects two-stage of different parameters such as pulp densities, residence times and temperatures on the final copper recovery and redox potential were studied. Lower pulp densities resulted in a stable redox potential in both reactors while increasing the pulp density to 7% (w/v) created an unstable redox potential in the first bioreactor especially at lower temperatures. Final copper recoveries calculated for pulp densities of 2%, 4% and 7%, were 95.8%, 92.5% and 91.3% with residence times of 2.7, 4 and 6 days, respectively. The process of dust bio-treating was net acid consuming. The promising results indicate that bioleaching is a feasible process that can be applied to copper flue dusts.

Authors

Bakhtiari

Department of Chemical Engineering, Faculty of Engineering, Sistan and Balouchestan University, Zahedan, Iran.

Atashi

Department of Chemical Engineering, Faculty of Engineering, Sistan and Balouchestan University, Zahedan, Iran.

Zivdar

Department of Chemical Engineering, Faculty of Engineering, Sistan and Balouchestan University, Zahedan, Iran.

Seyed Baghery

Hydrometallurgy Research Unit, R & D Center, Sarcheshmeh Copper Complex, Rafsanjan, Iran.

مراجع و منابع این Paper:

لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :
  • Acevedo, F., "The use of reactors in biomining processes", EJB, ...
  • Rohwerder, T., Gehrke, T., Kinzler, K. and Sand, W., "Bioleaching ...
  • Weston, J.M., Dreisinger, D.B., Hackl, R.P., King, J.A., "Continuous biological ...
  • Gericke, M., Pinches, A., "Bioleaching of copper sulfide concentrate using ...
  • Konishi, Y., Tokushige, M., Asai, S., Suzuki, T., "Copper recovery ...
  • Brierley, C.L., Briggs, A.P., "Selection and sizing of biooxidation equipment ...
  • Massinaie, M., Oliazadeh, M. and Seyed Bagheri, A.S., "Biological copper ...
  • Seyed Bagheri, S.A., Hassani H.R., "Isolation and preliminary identification of ...
  • Silverman, M.P. and Lundgren, D.S., "Studies of the chemo autotrophic ...
  • نمایش کامل مراجع