公开(公告)号：US20190177864A1

公开(公告)日：2019-06-13

申请号：US16273232

申请日：2019-02-12

Applicant: FREEPORT MINERALS CORPORATION

Inventor： Joanna M. Robertson ,  Thomas R. Bolles ,  Wayne W. Hazen ,  Lawrence D. May ,  Jay C. Smith ,  David R. Baughman

IPC: C25C1/12 ,  C22B3/14 ,  C22B15/00 ,  C22B23/00 ,  C22B1/02 ,  C25C1/00 ,  C22B3/02 ,  C25C7/02 ,  C22B3/12 ,  C25C5/02 ,  C22B3/00 ,  C22B1/26 ,  C22B3/22

Abstract: Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under reducing conditions to produce a roasted metal bearing material, and leaching the roasted metal bearing material in a basic medium to yield a pregnant leach solution.

公开(公告)号：US20160230296A1

公开(公告)日：2016-08-11

申请号：US15099966

申请日：2016-04-15

Applicant: FREEPORT MINERALS CORPORATION

Inventor： Joanna M. Robertson ,  Thomas R. Bolles ,  Wayne W. Hazen ,  Lawrence D. May ,  Jay C. Smith ,  David R. Baughman

IPC: C25C1/12 ,  C22B3/00 ,  C22B15/00 ,  C25C5/02 ,  C22B3/22 ,  C22B1/02 ,  C22B1/26 ,  C22B23/00 ,  C22B3/14

CPC classification number: C25C1/12 ,  C22B1/02 ,  C22B1/26 ,  C22B3/02 ,  C22B3/12 ,  C22B3/14 ,  C22B3/22 ,  C22B15/0002 ,  C22B15/0078 ,  C22B15/0086 ,  C22B23/005 ,  C22B23/0446 ,  C22B23/0453 ,  C25C1/00 ,  C25C5/02 ,  C25C7/02 ,  Y02P10/234

Abstract: Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under reducing conditions to produce a roasted metal bearing material, and leaching the roasted metal bearing material in a basic medium to yield a pregnant leach solution.