公开(公告)号：AU8432475A

公开(公告)日：1977-03-03

申请号：AU8432475

申请日：1975-08-27

Applicant: HOECHST AG

Inventor： KANDLER JOACHIM ,  KOMORNICZYK KLAUS ,  REITZ MATHIAS

IPC: B03B13/00 ,  C23F11/167 ,  B03B5/30 ,  C07F9/40

Abstract: The corrosion of aqueous heavy pulps which contain ferrosilicon with between 8 and 20 weight % of silicon as a heavy medium and are used in the heavy media separation of minerals is inhibited. To this end, the heavy pulp is used in admixture with between 0.1 and 0.8 weight % of a carboxy-alkane-phosphonic acid of the following formulae: in which R stands for hydrogen or alkyl having from 1 to 4 carbon atoms, or

公开(公告)号：CA997924A

公开(公告)日：1976-10-05

申请号：CA169169

申请日：1973-04-19

Applicant: HOECHST AG

Inventor： CZISKA JOHANN ,  STRAUSS GEORG ,  PORTZ WILHELM ,  KOMORNICZYK KLAUS ,  KANDLER JOACHIM

IPC: B03B5/30 ,  B03B5/44 ,  B03C1/00 ,  C22C38/00 ,  C22C38/02

Abstract: The invention provides the use of an iron/silicon/phosphorus-alloy containing between 8 and 25 weight % of silicon and between 0.3 and 2.5 weight % of phosphorus as heavy medium for making heavy pulps for the heavy media separation of minerals.