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http://dx.doi.org/10.7844/kirr.2011.20.1.003

Status of EAF Dust Management in Taiwan  

Chen, Wei-Sheng (Department of Resource Engineering, National Cheng Kung University, Resource Recycling and Management Research Center)
Chou, Wei-Shan (Department of Resource Engineering, National Cheng Kung University, Resource Recycling and Management Research Center)
Tsai, Min-Shing (Department of Resource Engineering, National Cheng Kung University, Resource Recycling and Management Research Center)
Publication Information
Resources Recycling / v.20, no.1, 2011 , pp. 3-13 More about this Journal
Abstract
Taiwan's annual steel production reached 21.29 million tons. EAF accounted for about half of this total, or 11.2 million tons in 2008. The other 10.09 million tons came from blast furnace and converter process methods. The annual EAF carbon steel production is about 9.76 million tons, and the quantity of dust generated from the EAF process is 160 thousand tons, or about 16kg of dust per ton of steel was produced. In 2009, there is Walez process for carbon steel EAF dust recycling, and the capacity is about 70,000 tons per year; and there is RHF/SAF process for stainless steel EAF dust, the capacity is 60,000 tons per year which is enough to treat stainless steel EAF dust in Taiwan. There are many new treatment facilities processes will be that introduced to recycle the EAF dust in the near future, these processes will perform smoothly and successfully in Taiwan. The estimation of recycled crude ZnO is about 90,000 tons each year. The recycling and upgrading crude zinc oxide will be the next important issue in Taiwn zinc and steel industry.
Keywords
EAF dust; zinc oxide; chloride removal; recycling; slag;
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