公开(公告)号：AU2007220501B2

公开(公告)日：2011-07-07

申请号：AU2007220501

申请日：2007-02-28

Applicant: BASF SE

Inventor： THOMAS HEIDENFELDER ,  BERND LAUBUSCH ,  HELMUT WITTELER

IPC: C22B3/00 ,  C22B15/00

Abstract: The present invention relates to a process for the acid digestion of metal-containing compounds by leaching by means of an aqueous leachant, wherein the aqueous leachant i) contains an alkanesulphonic acid and, if appropriate, sulphuric acid and/or surfactant and/or ii) a mixture of an alkanesulphonic acid salt and sulphuric acid and also, if appropriate, surfactant. Furthermore, an aqueous leachant containing one or more alkanesulphonic acids and, if appropriate, sulphuric acid and/or surfactant and also an aqueous leachant containing one or more alkanesulphonic acid salts and sulphuric acid and, if appropriate, surfactant are also provided by the present invention.