• Resources Recycling
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• v.31 no.2
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• pp.63-69
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• 2022

In this study, mechanical grinding using a planetary ball mill was performed under various conditions to evaluate its effect on the crystal structure of vanadium titanium magnetite (VTM) ore from the Kwain Mine in South Korea. The crystal structure of the activated product was also evaluated. Magnetite and ilmenite were identified as the main types of VTM ore used in the Kwain Mine, and the main types of gangue minerals were iron-based silicate minerals. According to the mechanical activation results, the crystallinity and crystal size decreased as the size of the grinding media (balls) decreased, and the amorphization of the sample/ball filling was significant as the amount of the sample was reduced. In addition, as the grinding speed and time increased, the crystal structure significantly changed, proving that these two parameters had a greater effect on the crystal structure than the ball size and sample/ball filling ratio.

• Proceedings of the Korean Institute of Resources Recycling Conference
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• 1993.03a
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• pp.18.2-18
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• 1993

• Proceedings of the KSEEG Conference
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• 2000.04a
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• pp.30-31
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• 2000

• Proceedings of the Korean Institute of Resources Recycling Conference
• /
• 2002.05a
• /
• pp.38-51
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• 2002

• Resources Recycling
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• v.3 no.4
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• pp.61-66
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• 1994

• Resources Recycling
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• v.3 no.4
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• pp.74-82
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• 1994

• 한국상하수도협회지
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• s.6
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• pp.44-51
• /
• 2004

• Proceedings of the Korean Institute of Resources Recycling Conference
• /
• 2001.05a
• /
• pp.449-452
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• 2001

• Proceedings of the Korean Institute of Resources Recycling Conference
• /
• 2001.05a
• /
• pp.461-464
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• 2001

• Resources Recycling
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• v.27 no.2
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• pp.11-23
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• 2018

The need for remanufacturing automotive parts is required due to the depletion of resources, rising raw material prices and strengthening environmental regulations. For remanufacturing, stable supply and demand of core must be accompanied. At present, remanufacturing companies collect cores through various routes, but the recovery rate of cores from the End-of-Life Vehicles is low. If we can systematically collect cores from hundreds of thousands of ELVs that were generated each year, the recovery rate of the core for remanufacturing will be further improved. Therefore, in this paper, we tried to establish a classification system for the ELV as a method for collecting the cores from the ELV. First, we selected the elements affecting the classification and determined the scope for the evaluation. The final rating classification is established by calculating the weights among the influence elements. Finally, through the case study, the dismantling grade of the actual ELV was evaluated to derive the second grade.