Process for recovery of waste H.sub.2 SO.sub.4 and HCl

Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy

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204103, 204104, 204149, 204180P, 423139, 423DIG14, C25B 122

Patent

active

041771192

ABSTRACT:
This invention relates to a process for recovery of waste H.sub.2 SO.sub.4 and HCl which are used for pickling metallic materials and articles and contain a large quantities of Fe ions. Furthermore, it offers a process for the recovery of H.sub.2 SO.sub.4 and HCl from waste H.sub.2 SO.sub.4 which contains large amounts of Fe ions after removal of Ti ions by a hydrolysis process in the production of TiO.sub.2 and also for the recovery of high-purity electrolytic iron or iron hydroxide.

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