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The use of organic acids as precipitants for metal recovery from galvanic solutions
Author(s) -
Gylienė Ona,
Šalkauskas Mudis,
Juškėnas Remigijus
Publication year - 1997
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/(sici)1097-4660(199709)70:1<111::aid-jctb691>3.0.co;2-9
Subject(s) - tartrate , oxalic acid , oxalate , chemistry , galvanic cell , metal , inorganic chemistry , metal ions in aqueous solution , chelation , organic acid , tartaric acid , electroplating , nuclear chemistry , citric acid , organic chemistry , layer (electronics)
The abundance of metal ions in galvanic waste solutions enables these solutions to be used for recovery of metals as well as complexing agents such as citrate and tartrate. The addition of oxalic acid to solutions containing complexing agents precipitates pure metal oxalate or mixtures of metal oxalate and tartrate or citrate, the product depending on pH and concentration of components. The addition of oxalic acid to the rinsing bath after electroplating precipitates the most of the metals such as Cu(II), Zn(II) and Pb(II). ©1997 SCI