发明名称 |
PROCESS FOR PRODUCING CHLORINE, CAUSTIC SODA, AND HYDROGEN |
摘要 |
The invention provides a process for producing chlorine, alkaline metal hydroxide, and hydrogen which comprises the following steps: (a) preparing a brine by dissolving an alkaline metal chloride source in water; (b) removing alkaline precipitates from the brine prepared in step (a) in the presence of hydrogen peroxide by means of a filter of active carbon, and recovering the resulting brine; (c) subjecting at least part of the resulting brine as obtained in step (b) to an ion-exchange step; (d) subjecting at least part of the brine as obtained in step (c) to a membrane electrolysis step; (e) recovering at least part of the chlorine, alkaline metal hydroxide, hydrogen, and brine as obtained in step (d); (f) subjecting at least part of the brine as recovered in step (e) to a dechlorination step; and (g) recycling at least part of the dechlorinated brine obtained in step (f) to step (a). |
申请公布号 |
US2011303549(A1) |
申请公布日期 |
2011.12.15 |
申请号 |
US200913133912 |
申请日期 |
2009.12.14 |
申请人 |
MANDERS ANTONIUS JACOBUS GERARDUS;OONINCX JACOBA CORNELIA PETRONELLA ADRIANA;PELKONEN SAMI PETTERI;BORGHESI MASSIMO GIOSAFATTE;AKZO NOBEL N.V. |
发明人 |
MANDERS ANTONIUS JACOBUS GERARDUS;OONINCX JACOBA CORNELIA PETRONELLA ADRIANA;PELKONEN SAMI PETTERI;BORGHESI MASSIMO GIOSAFATTE |
分类号 |
C25B15/08;C25B1/46;C25B15/02 |
主分类号 |
C25B15/08 |
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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