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 |
WO2010069896(A1) |
申请公布日期 |
2010.06.24 |
申请号 |
WO2009EP67016 |
申请日期 |
2009.12.14 |
申请人 |
AKZO NOBEL N.V.;MANDERS, ANTONIUS JACOBUS GERARDUS;OONINCX, JACOBA CORNELIA PETRONELLA ADRIANA;PELKONEN, SAMI PETTERI;BORGHESI, MASSIMO GIOSAFATTE |
发明人 |
MANDERS, ANTONIUS JACOBUS GERARDUS;OONINCX, JACOBA CORNELIA PETRONELLA ADRIANA;PELKONEN, SAMI PETTERI;BORGHESI, MASSIMO GIOSAFATTE |
分类号 |
C25B1/46;C25B15/08 |
主分类号 |
C25B1/46 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|