公开(公告)号：DE102005009574A1

公开(公告)日：2006-08-31

申请号：DE102005009574

申请日：2005-02-28

Applicant: BASF AG

Inventor： SEELMANN-EGGEBERT HANS-PETER ,  OETTER GUENTER ,  BERASTAIN ARTURO ,  QUIM CESAR OSTOS RIOS

IPC: C22B11/08 ,  C09K23/42

Abstract: Aqueous cyanide composition (A) comprises at least a non-ionic surfactant with an aqueous sodium hydroxide (0.01-0.2 wt.%) having a pH of 9.8-10.2, and an contact angle on glass of at least 10 [deg], at 23 [deg]C. An independent claim is included a procedure for extracting material from a metal comprising providing a metal containing material, providing (A), and contacting the material containing metal with (A) and metal cyanide complex enriched parent lye in the presence of an oxidation agent.

公开(公告)号：DE102004063501A1

公开(公告)日：2006-07-06

申请号：DE102004063501

申请日：2004-12-24

Applicant: BASF AG

Inventor： SEELMANN-EGGEBERT HANS-PETER ,  OETTER GUENTER ,  BERASTAIN ARTURO ,  QUIM CESAR OSTOS RIOS

IPC: B03D1/004

Abstract: Aqueous cyanide composition (A) comprises at least a non-ionic surfactant with an aqueous sodium hydroxide (0.01-0.2 wt.%) having a pH of 9.8-10.2, and an contact angle on glass of at least 10 [deg], at 23 [deg]C. An independent claim is included a procedure for extracting material from a metal comprising providing a metal containing material, providing (A), and contacting the material containing metal with (A) and metal cyanide complex enriched parent lye in the presence of an oxidation agent.