Title:
HYDROMETALLURGICAL PROCESS FOR RECOVERY OF METALS AND/OR SEMIMETALS FROM WASTE MATERIALS CONTAINING COMPOUND SEMICONDUCTOR MATERIALS AND/OR BACK CONTACT MATERIALS AND/OR TRANSPARENT ELECTRICALLY CONDUCTING OXIDES (TCOS)
Document Type and Number:
WIPO Patent Application WO/2014/131401
Kind Code:
A9
Abstract:
The present invention relates to a hydrometallurgical process for recovery of metals and/or semimetals from waste materials, such as high-tech or green-tech wastes, and/or electrical and electronic waste containing compound semiconductor materials and/or back contact materials and/or transparent electrically conducting oxides (TCOs), wherein the waste materials according to the invention are mixed thoroughly with a reaction solution of water, 1 to 5% by mass sodium bisulphate and 1-5% by mass sodium chlorite or with a reaction solution of water, 1 to 50% by mass organosulphonic acid and in the stoichiometric ratio to the organosulphonic acid 1-5% by mass of an oxidizing agent, and the metals and/or semimetals that are to be recovered are dissolved.
Inventors:
PALITZSCH WOLFRAM (DE)
Application Number:
PCT/DE2014/100066
Publication Date:
December 24, 2014
Filing Date:
February 25, 2014
Export Citation:
Assignee:
LOSER ULRICH (DE)
PALITZSCH WOLFRAM (DE)
PALITZSCH WOLFRAM (DE)
International Classes:
C22B3/16; C22B15/00; C23F1/00
Attorney, Agent or Firm:
RUMRICH / PATENTANWALTSKANZLEI (GabrieleLimbacher Str. 305, Chemnitz, DE)
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