公开(公告)号：US10370739B2

公开(公告)日：2019-08-06

申请号：US15850849

申请日：2017-12-21

Applicant: Goldcorp Inc.

Inventor： Marcus Tomlinson ,  Teodoro Martinez ,  Simon Hille

IPC: C22B3/00 ,  C22B3/44 ,  C22B3/04 ,  C22B13/00 ,  C22B15/00 ,  C22B30/02 ,  C22B30/04 ,  C22B1/00 ,  C22B11/00 ,  B03D1/002 ,  B03D1/012 ,  B03D1/02

Abstract: A stabilization process for an arsenic solution comprising thiosulfates, the process comprising: acidifying the arsenic solution to decompose the thiosulfates, to yield an acidified solution; oxidizing the acidified solution to oxidize residual As3+ to As5+ and reduced sulfur species to sulfates, to yield a slurry comprising elemental sulfur; separating elemental sulfur from the slurry to yield a liquid; oxidizing the liquid to oxidize residual reduced sulfur species, to yield an oxidized solution; and forming a stable arsenic compound from the oxidized solution.

公开(公告)号：US20180112288A1

公开(公告)日：2018-04-26

申请号：US15850849

申请日：2017-12-21

Applicant: Goldcorp Inc.

Inventor： Marcus Tomlinson ,  Teodoro Martinez ,  Simon Hille

IPC: C22B3/44 ,  C22B13/00 ,  B03D1/002 ,  C22B15/00 ,  B03D1/02 ,  C22B30/02 ,  C22B3/00 ,  B03D1/012 ,  C22B30/04 ,  C22B3/04 ,  C22B1/00 ,  C22B11/00

CPC classification number: C22B3/44 ,  B03D1/002 ,  B03D1/012 ,  B03D1/02 ,  B03D2201/005 ,  B03D2201/02 ,  B03D2201/04 ,  B03D2203/02 ,  C22B1/00 ,  C22B3/04 ,  C22B11/00 ,  C22B13/00 ,  C22B13/04 ,  C22B15/00 ,  C22B15/0065 ,  C22B30/02 ,  C22B30/04 ,  Y02P10/234 ,  Y02P10/236

Abstract: A stabilization process for an arsenic solution comprising thiosulfates, the process comprising: acidifying the arsenic solution to decompose the thiosulfates, to yield an acidified solution; oxidizing the acidified solution to oxidize residual As3+ to As5+ and reduced sulfur species to sulfates, to yield a slurry comprising elemental sulfur; separating elemental sulfur from the slurry to yield a liquid; oxidizing the liquid to oxidize residual reduced sulfur species, to yield an oxidized solution; and forming a stable arsenic compound from the oxidized solution.

公开(公告)号：US09885095B2

公开(公告)日：2018-02-06

申请号：US15115142

申请日：2015-01-30

Applicant: Goldcorp Inc.

Inventor： Marcus Tomlinson ,  Teodoro Martinez ,  Simon Hille

IPC: C22B3/00 ,  C22B3/44 ,  C22B3/04 ,  C22B13/00 ,  C22B15/00 ,  C22B30/02 ,  C22B30/04 ,  C22B1/00 ,  C22B11/00 ,  B03D1/002 ,  B03D1/012 ,  B03D1/02

CPC classification number: C22B3/44 ,  B03D1/002 ,  B03D1/012 ,  B03D1/02 ,  B03D2201/005 ,  B03D2201/02 ,  B03D2201/04 ,  B03D2203/02 ,  C22B1/00 ,  C22B3/04 ,  C22B11/00 ,  C22B13/00 ,  C22B13/04 ,  C22B15/00 ,  C22B15/0065 ,  C22B30/02 ,  C22B30/04 ,  Y02P10/234 ,  Y02P10/236

Abstract: A process is provided for separation of at least one metal sulfide from a mixed sulfide concentrate. The process includes: subjecting the mixed sulfide concentrate to flotation in which at least one sulfide including antimony, arsenic and a first metal is floated and at least one sulfide including a second metal is depressed. The flotation yields a first metal concentrate having the at least one sulfide including antimony, arsenic and the first metal and a second metal concentrate having the at least one sulfide including the second metal. The first metal concentrate is leached to yield a further concentrate and a leach solution. The further concentrate includes the first metal and the leach solution includes soluble antimony and soluble arsenic. The process further includes oxidizing the leach solution to yield an antimony precipitate and an arsenic solution, and forming a stable arsenic compound from the arsenic solution.

公开(公告)号：US11124857B2

公开(公告)日：2021-09-21

申请号：US16448226

申请日：2019-06-21

Applicant: Goldcorp Inc.

Inventor： Marcus Tomlinson ,  Teodoro Martinez ,  Simon Hille

IPC: C22B3/00 ,  C22B3/44 ,  C22B3/04 ,  C22B13/00 ,  C22B15/00 ,  C22B30/02 ,  C22B30/04 ,  C22B1/00 ,  C22B11/00 ,  B03D1/002 ,  B03D1/012 ,  B03D1/02

Abstract: A stabilization process for an arsenic solution comprising thiosulfates, the process comprising: acidifying the arsenic solution to decompose the thiosulfates, to yield an acidified solution; oxidizing the acidified solution to oxidize residual As3+ to As5+ and reduced sulfur species to sulfates, to yield a slurry comprising elemental sulfur; separating elemental sulfur from the slurry to yield a liquid; oxidizing the liquid to oxidize residual reduced sulfur species, to yield an oxidized solution; and forming a stable arsenic compound from the oxidized solution.

公开(公告)号：US20190309389A1

公开(公告)日：2019-10-10

申请号：US16448226

申请日：2019-06-21

Applicant: Goldcorp Inc.

Inventor： Marcus Tomlinson ,  Teodoro Martinez ,  Simon Hille

IPC: C22B3/44 ,  C22B15/00 ,  C22B3/04 ,  C22B13/00 ,  C22B30/02 ,  C22B30/04 ,  C22B3/00 ,  B03D1/02 ,  B03D1/012 ,  B03D1/002 ,  C22B11/00 ,  C22B1/00

Abstract: A stabilization process for an arsenic solution comprising thiosulfates, the process comprising: acidifying the arsenic solution to decompose the thiosulfates, to yield an acidified solution; oxidizing the acidified solution to oxidize residual As3+ to As5+ and reduced sulfur species to sulfates, to yield a slurry comprising elemental sulfur; separating elemental sulfur from the slurry to yield a liquid; oxidizing the liquid to oxidize residual reduced sulfur species, to yield an oxidized solution; and forming a stable arsenic compound from the oxidized solution.

公开(公告)号：US20160340756A1

公开(公告)日：2016-11-24

申请号：US15115142

申请日：2015-01-30

Applicant: Goldcorp Inc.

Inventor： Marcus Tomlinson ,  Teodoro Martinez ,  Simon Hille

IPC: C22B3/44 ,  C22B30/04 ,  C22B30/02 ,  B03D1/02 ,  C22B15/00 ,  C22B11/00 ,  B03D1/012 ,  B03D1/002 ,  C22B3/04 ,  C22B3/00

CPC classification number: C22B3/44 ,  B03D1/002 ,  B03D1/012 ,  B03D1/02 ,  B03D2201/005 ,  B03D2201/02 ,  B03D2201/04 ,  B03D2203/02 ,  C22B1/00 ,  C22B3/04 ,  C22B11/00 ,  C22B13/00 ,  C22B13/04 ,  C22B15/00 ,  C22B15/0065 ,  C22B30/02 ,  C22B30/04 ,  Y02P10/234 ,  Y02P10/236

Abstract: A process is provided for separation of at least one metal sulfide from a mixed sulfide concentrate. The process may comprise: subjecting the mixed sulfide concentrate to flotation in which at least one sulfide comprising antimony, arsenic and a first metal is floated and at least one sulfide comprising a second metal is depressed. The flotation yields a first metal concentrate having the at least one sulfide comprising antimony, arsenic and the first metal and a second metal concentrate having the at least one sulfide comprising the second metal. The first metal concentrate is leached to yield a further concentrate and a leach solution. The further concentrate comprises the first metal and the leach solution comprises soluble antimony and soluble arsenic. The process may further comprise oxidizing the leach solution to yield an antimony precipitate and an arsenic solution, and forming a stable arsenic compound from the arsenic solution.

Abstract translation: 提供一种从混合硫化物浓缩物中分离至少一种金属硫化物的方法。 该方法可以包括：使混合的硫化物浓缩物进行浮选，其中至少一种包含锑，砷和第一金属的硫化物浮选，并且至少一种包含第二金属的硫化物被抑制。 浮选产生第一金属浓缩物，其具有包含锑，砷和第一金属的至少一种硫化物，以及第二金属浓缩物，其具有包含第二金属的至少一种硫化物。 将第一金属浓缩物浸出以产生另外的浓缩物和浸提溶液。 进一步的浓缩物包括第一金属和浸出溶液，其包含可溶性锑和可溶性砷。 该方法可以进一步包括氧化浸出溶液以产生锑沉淀物和砷溶液，并从砷溶液形成稳定的砷化合物。