Process for the production of disposible products from metal...

Details Process for the production of disposible products from metal... Process for the production of disposible products from metal...

B - Operations, Transporting

09

B

B09B 3/00 (2006.01) C01G 23/07 (2006.01) A62D 3/00 (2006.01)

Patent

CA 2078260

In order to treat metal chlorides obtained in the form of dust collector solids in the production of titanium dioxide by the chloride process, the inert constituents, especially particulate coke, is separated then the metals are selectively precipitated and a maturing phase under oxidative conditions is provided for. The residue consisting of metal hydroxides is also not thixotropic in the absence of inerts. As a result, the volume of material to be dumped has been cut in half.

Pour traiter les chlorures de métal obtenus sous forme de solides de dépoussiéreur dans la production de dioxyde de titane par le procédé au chlorure, les constituants inertes, en particulier le coke particulaire, sont séparés, et les métaux sont précipités sélectivement; on prévoit ensuite une phase de mûrissement dans des conditions oxydatives. Le résidu constitué d'hydroxydes de métal reste non thixotrope en l'absence des constituants inertes. Conséquemment, le volume de matière à éliminer est réduit de moitié.

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