发明授权
- 专利标题： Method for removing mercury from gas
- 专利标题（中）： 从气体中去除汞的方法
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申请号： US10433844申请日： 2001-12-07
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公开(公告)号： US07481865B2公开(公告)日： 2009-01-27
- 发明人: Heljä Peltola , Pekka Taskinen , Heikki Takala , Jens Nyberg , Harri Natunen , Jorma Panula
- 申请人： Heljä Peltola , Pekka Taskinen , Heikki Takala , Jens Nyberg , Harri Natunen , Jorma Panula
- 申请人地址： FI Espoo
- 专利权人： Outotec Oyj
- 当前专利权人： Outotec Oyj
- 当前专利权人地址： FI Espoo
- 代理机构： Morgan & Finnegan, L.L.P.
- 优先权： FI20002698 20001208
- 国际申请： PCT/FI01/01064 WO 20011207
- 国际公布： WO02/45825 WO 20020613
- 主分类号： C22B61/00
- IPC分类号： C22B61/00 ; C22B43/00
摘要：
The invention relates to a method for the removal of mercury from gas containing sulphur dioxide and oxygen and from the sulphuric acid vapour contained in the gas. According to the method, the gas is washed with a water solution that contains selenium ions, whereby metallic selenium is formed in the presence of oxygen, which precipitates the mercury in the gas and vapour either as a selenide or in a chlorine-containing environment, as a dichloride of mercury and selenium. Gas washing occurs at a low temperature, below 50° C.
公开/授权文献
- US20040081605A1 Method for removing mercury from gas 公开/授权日：2004-04-29
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