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Methods of regeneration of spent pickling solutions from steel treatment plants

Regel-Rosocka M., Cieszyńska A., Wiśniewski M.

Polish Journal of Chemical Technology

2007

Vol. 9, nr 2

42-45

Facing the still growing demand for metals, particularly for zinc, the recovery of metals from secondary sources should be considered. Spent pickling solutions can be the source of valuable products such as hydrochloric acid, zinc or iron salts or even metallic zinc. The selection of an efficient, selective and economical method for the regeneration of such solutions is a key issue for hot dip galvanizing plants, especially in reference to strict environmental protection regulations.