Thyssenkrupp Uhde Chlorine Engineers (italia) S.r.

Thyssenkrupp Uhde Chlorine Engineers S.r.l.

Massimo Giosafatte Borghesi

Sami Petteri Pelkonen

Jacoba Cornelia Petronella Adriana Oonincx

Antonius Jacobus Gerardus Manders

Antonius Jacobus Manders

Jacoba Cornelia Oonincx

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).

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Milan, Italy

Massimo Giosafatte Borghesi