Effect of Slag Composition on the Dissolution of Phosphorus from Steelmaking Slag by Selective Leaching
Effect of Slag Composition on the Dissolution of Phosphorus from Steelmaking Slag by Selective Leaching
复制标题
炉渣成分对选择性浸出炼钢渣中磷溶出的影响
DOI：
10.2355/isijinternational.isijint-2018-240
复制
发表时间：
2018
影响因子：
1.8
通讯作者：
S. Kitamura
中科院分区：
文献类型：
--
作者：
Chuan;Xu Gao;S. Ueda,;S. Kitamura
由于资源枯竭和环境保护，工业副产品的回收利用受到广泛关注。炼钢渣是炼钢过程的主要副产品，每年产生大量。虽然炼钢渣中含有许多有价值的成分，如FetO、MnO、P2O5等，但其主要用途是作为路基和土木工程材料。1）钢渣中这些元素的价值尚未得到很好的开发。人们希望在炼铁和炼钢过程中回收炼钢炉渣，并回收一些有价值的元素。然而，P2O5的存在限制了炼钢渣的回收利用，因为它会导致铁水中磷（P）含量较高，增加脱磷负担。因此，一种从炉渣中有效分离和去除P2O5的方法将有利于其利用。虽然P是钢中的有害杂质，但它是肥料中的必需元素，并且在农业中发挥着重要作用。由于目前磷矿供应十分紧张，而日本国内没有磷矿资源，因此从炼钢渣中分离出来的磷被认为是潜在的可持续磷酸盐来源。 2）炉渣成分对选择性浸出炼钢渣中磷溶出的影响
The recycling of industrial by-product has attracted widespread attention because of resource exhaustion and environmental protection. Steelmaking slag, a major by-product of the steelmaking process, is produced in an enormous quantity annually. Although steelmaking slag contains many valuable components, such as FetO, MnO, and P2O5, it is mainly used as a roadbed and civil engineering material.1) The value of these elements in slag has not been exploited well. It would be desirable to recycle the steelmaking slag inside the ironmaking and steelmaking process, and to recover some valuable elements. However, the presence of P2O5 restricts the recycling of steelmaking slag, because it will result in high phosphorus (P) content in hot metal and increase dephosphorization burden. Therefore, a method for efficient separation and removal of P2O5 from slag would facilitate its utilization. Although P is a detrimental impurity in steel, it is an essential element in fertilizer, and plays a significant role in agriculture. Because the supply of phosphate ores is currently becoming very tight, and Japan has no domestic phosphate resources, the P separated from steelmaking slag is considered a potential sustainable source of phosphate.2) Effect of Slag Composition on the Dissolution of Phosphorus from Steelmaking Slag by Selective Leaching