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JISCO's first aluminum ash on-site resource utilization project was put into operation
- China Aluminium Network
- Post Time: 2022/12/21
- Click Amount: 727
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【Aluminum Road Network】
Recently, JISCO's first in-situ resource utilization project of aluminum ash has been put into operation, which means that JISCO has entered a new stage of resource utilization of aluminum ash and extension of the recycled aluminum industry chain.
Aluminum ash is a solid hazardous waste produced during the processing of aluminum ingots. Its components contain valuable substances such as metal aluminum, fluoride, aluminum nitride and a large amount of metal salts. When it meets water, it will produce ammonia gas, which is reactive and Two dangerous characteristics of toxicity, untreated aluminum ash will cause pollution to the surrounding environment. In the "National Hazardous Waste List (2021 Edition)", the primary aluminum ash, secondary aluminum ash, and dust removal ash produced by the aluminum processing industry are all included in hazardous waste management, and aluminum ash has become a "hot potato" in the hands of aluminum processing manufacturers .
Aluminum ash is mainly divided into primary aluminum ash and secondary aluminum ash. The primary aluminum ash is the aluminum slag produced in the process of producing aluminum, and the secondary aluminum ash is the residue after the primary aluminum ash or other waste aluminum is extracted by physical or chemical methods. The metal aluminum content is low and the composition is relatively complex.
"Primary aluminum ash contains more than 60% aluminum oxide, which has great recycling value. After processing, it will become a 'sweet pastry'." Liu Peng, director of the aluminum slag processing branch of Runyuan Company, introduced.
According to statistics, Dongxing Aluminum Tiancheng Colored Aluminum Company produces about 10,000 tons of aluminum ash per year, and other production lines produce about 1,000 tons of aluminum ash per year. In order to properly solve the problem of aluminum ash management and disposal and reduce environmental risks, JISCO has conducted many investigations, comprehensive investigations, and scientific demonstrations, and decided to implement the aluminum ash recycling project of Tiancheng Colored Aluminum Company.
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