METHOD FOR TIN RECOVERY FROM TIN RESIDUE

摘要

The present invention relates to a method for recovering tin from tin waste and, more particularly, to a method for recovering tin by a wet separation process such as a pre-treatment step recovering tin in forms of a tin-containing powder or lump from various tin wastes, an acid leaching step, and an extraction step. According to the present invention, the tin recovery method comprises: a leaching step (S200) which leaches waste sludge in an acidic solution; and an extraction step (S300) which recovers tin compounds after the extraction step.