发明授权
US08529658B2 Method of manufacturing Fe and Ni containing material, ferronickel mass using the Fe and Ni containing material and method for manufacturing the ferronickel mass
有权
使用含Fe和Ni的材料制造含有Fe和Ni的材料的方法，使用含镍和镍的材料的镍铁合金质量及其制造方法
- 专利标题： Method of manufacturing Fe and Ni containing material, ferronickel mass using the Fe and Ni containing material and method for manufacturing the ferronickel mass
- 专利标题（中）： 使用含Fe和Ni的材料制造含有Fe和Ni的材料的方法，使用含镍和镍的材料的镍铁合金质量及其制造方法
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申请号： US13245253申请日： 2011-09-26
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公开(公告)号： US08529658B2公开(公告)日： 2013-09-10
- 发明人: Jae Young Lee
- 申请人： Jae Young Lee
- 申请人地址： KR Pohang, Kyungsangbook-Do
- 专利权人： Research Institute of Industrial Science & Technology
- 当前专利权人： Research Institute of Industrial Science & Technology
- 当前专利权人地址： KR Pohang, Kyungsangbook-Do
- 代理机构： Renner, Otto, Boisselle & Sklar, LLP
- 优先权： KR10-2007-0047134 20070515; KR10-2007-0113771 20071108
- 主分类号： C22B7/00
- IPC分类号： C22B7/00
摘要：
A method of manufacturing an Fe/Ni-containing material having a low content of sulfur from an Fe/Ni/SO4-containing liquid waste, a ferronickel mass using the Fe/Ni-containing material, and a method of manufacturing the ferronickel mass. The method includes: removing SO4 from an Fe/Ni/SO4-containing liquid waste by adding an SO4 neutralizing agent to the liquid waste so that pH of the liquid waste can be maintained to a pH level of 0.5 to 2.5; precipitating Fe and Ni in the form of hydroxide [(Ni,Fe)(OH)] by adding NaOH to the SO4-free solution; washing the precipitate with water; and manufacturing an Ni/Fe-containing material by filtering and drying the washed Ni/Fe-containing sludge. The method may be useful to suitably apply to the field of recycling of waste acids since an Fe/Ni-containing pellet and a high purity plaster are recovered as the stainless steel material from the waste water at the same time.
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