发明名称 |
NEUTRALIZATION TREATMENT METHOD AND NEUTRALIZING AGENT |
摘要 |
Provided is a neutralization treatment method capable of performing an efficient neutralization treatment with the reduction of the amount of a neutralizing agent to be used such as slaked lime in a neutralization treatment that is performed in order to discharge a process liquid generated in a metal smelting or hydrometallurgy process to the outside of the system. The neutralization treatment is performed for a liquid discharged in a metal smelting or hydrometallurgy process by using as a neutralizing agent boiler ash that is obtained after combustion of a fluidized-bed boiler and is obtained by burning of a sulfur content derived from coal being a fuel while adding lime stone to the sulfur content and desulfurizing the sulfur content. |
申请公布号 |
EP2927332(A1) |
申请公布日期 |
2015.10.07 |
申请号 |
EP20130858678 |
申请日期 |
2013.11.22 |
申请人 |
SUMITOMO METAL MINING CO., LTD. |
发明人 |
NAKAI, TAKAYUKI;MATSUBARA, SATOSHI;NAKAI, OSAMU;NAKASHIMA, TAKESHI |
分类号 |
C02F1/66;C02F101/20;C02F103/10;C02F103/16;C22B3/00;C22B3/44;C22B23/00;F23J1/00 |
主分类号 |
C02F1/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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