公开(公告)号：WO2017140723A1

公开(公告)日：2017-08-24

申请号：PCT/EP2017/053395

申请日：2017-02-15

Applicant: FLSMIDTH A/S

Inventor： ROCKS, Sara (sally) ,  CHAIKO, David John ,  KEYSER, Paul Martin ,  BACZEK, Frank

IPC: C22B3/00 ,  C22B15/00

CPC classification number: C22B15/0071 ,  C22B11/04 ,  Y02P10/236

Abstract: This disclosure relates to systems and methods for the dissolution of metals, metallic compounds, metallic alloys, metallic solids, recyclable metal, semiconductors, and the like. Particularly disclosed, are exemplary systems, methods, and apparatus for leaching metallic solids such as blister copper, scrap copper anode, scrap copper cathode, and recycled/scrap copper. A hydrometallurgical leach process (130, 230, 730) may be provided in lieu of, or in addition to conventional electro-refining (914, 214) and fire-refining (911, 211) operations, in order to supplement and/or increase copper cathode production. Impure metallic solids are rapidly and selectively dissolved into solution via a mechano-chemical exothermic leach process, in a mechano-chemical (M-C) leach reactor. In some embodiments, impure metallic copper is rapidly and selectively dissolved into dilute sulfuric acid (e.g., 1-2 M H 2 SO 4 ); wherein the mechano-chemical dissolution process is exothermic and produces a concentrated copper sulfate electrolyte that can be used to increase existing electrorefinery output, while simultaneously eliminating the need to recycle anode scrap back to a fire refinery (911). The disclosed processes may potentially eliminate fire refining (914, 214) steps altogether, for example, by processing blister copper directly, in order to produce a copper electrolyte (113, 222, 722) for cathode (116, 225, 725) production via electrowinning.

Abstract translation: 本公开涉及用于溶解金属，金属化合物，金属合金，金属固体，可回收金属，半导体等的系统和方法。 特别公开的是用于浸出金属固体例如泡铜，废铜阳极，废铜阴极和再循环/废铜的示例性系统，方法和设备。 可以提供湿法冶金浸取工艺（130,230,730）以代替传统的电解精制（914,214）和火炼（911,211）操作，或者除了常规电解精炼（914,214）和火炼（911,211）操作以补充和/或增加 铜阴极生产。 在机械化学（M-C）浸出反应器中，不纯的金属固体通过机械化学放热浸出过程快速且选择性地溶解到溶液中。 在一些实施方案中，不纯的金属铜被快速且选择性地溶解于稀硫酸（例如1-2M H 2 SO 4）中; 其中机械化学溶解过程是放热的并产生可用于增加现有电化学输出的浓硫酸铜电解质，同时消除将阳极废料循环回到火炼厂（911）的需要。 所公开的方法可以例如通过直接处理起泡铜来潜在地消除火炼（914,214）的步骤，以便生产用于阴极（116,225,725）生产的铜电解液（113,222,722） 电解。

公开(公告)号：EP3562966A1

公开(公告)日：2019-11-06

申请号：EP17817170.8

申请日：2017-11-30

Applicant: FLSmidth A/S

Inventor： CHAIKO, David John ,  BACZEK, Frank ,  ROCKS, Sara (Sally)

IPC: C22B3/44 ,  C22B3/02 ,  C22B3/06 ,  C22B7/00 ,  C22B15/00 ,  C22B3/00 ,  C22B26/22 ,  C22B19/00 ,  C22B47/00

公开(公告)号：WO2018100539A1

公开(公告)日：2018-06-07

申请号：PCT/IB2017/057553

申请日：2017-11-30

Applicant: FLSMIDTH A/S

Inventor： CHAIKO, David John ,  BACZEK, Frank ,  ROCKS, Sara (Sally)

IPC: C22B3/44 ,  C22B3/02 ,  C22B3/06 ,  C22B7/00 ,  C22B15/00 ,  C22B3/00 ,  C22B26/22 ,  C22B19/00 ,  C22B47/00

Abstract: A method of controlling iron in a hydrometallurgical process is disclosed. The method may comprise the steps of: leaching (14, 114) a feed slurry (2, 102); forming a pregnant leach solution (12a, 12b; 112a, 112b); removing a first leach residue (18, 118) from the pregnant leach solution (12a, 12b); and sending a portion (12b, 112b) of the pregnant leach solution (12a, 12b) and/or raffinate (22, 122) produced therefrom, to an iron removal process (34, 134). According to some preferred embodiments, the iron removal process (34, 134) may comprise the steps of: sequentially processing the pregnant leach solution (12a, 12b) and/or raffinate (22, 122) produced therefrom in a first reactor (R 1 ), a second reactor (R 2 ), and a third reactor (R 3 ); maintaining a pH level of the first reactor (R 1 ) above 4, by virtue of the addition of a first base; maintaining a pH level of the second (R 2 ) and/or third (R 3 ) reactors above 8.5, by virtue of a second base; and forming solids (46) comprising magnetite (68). The method may further comprise the steps of performing a solid liquid separation step (36) after the iron removal process (34, 134); and performing a magnetic separation step (64) to remove magnetite (68) from said solids comprising magnetite (68), without limitation. A system for performing the method is also disclosed.

公开(公告)号：WO2020165845A1

公开(公告)日：2020-08-20

申请号：PCT/IB2020/051218

申请日：2020-02-13

Applicant: FLSMIDTH A/S

Inventor： EYZAGUIRRE, Carlos ,  CHAIKO, David John

IPC: C22B1/11 ,  C22B3/02 ,  C22B3/08 ,  C22B3/10 ,  C22B3/22 ,  C22B3/44 ,  C22B11/08

Abstract: A method (1) for pre-treating whole ore and/or concentrate comprising a precious metal for subsequent precious metal recovery involves processing a solids feed (2) in a pre-treatment stage (3) and then in a sulfide oxidation stage (4). The pre-treatment stage (3) may include a stirred media reactor (SMRt) therein, and the sulfide oxidation stage (4) may have at least one continuous stirred tank reactor (CSTR, CSTR l , CSTR n ) therein. A solid-liquid separation step (5) downstream of the stages (3, 4) forms a solids fraction and a liquids fraction. A precious metal is recovered from the solids fraction, and the liquids fraction is processed in a ferric regeneration stage (12) to convert iron (II) within the liquids fraction to iron (III). The iron (III) produced via the ferric regeneration stage (12) is then delivered to one or both of the stages (3, 4).

公开(公告)号：WO2018037305A1

公开(公告)日：2018-03-01

申请号：PCT/IB2017/054728

申请日：2017-08-02

Applicant: FLSMIDTH A/S

Inventor： CHAIKO, David John ,  DICKINSON, Chase ,  ROCKS, Sara (sally)

IPC: C22B7/00 ,  C22B15/00 ,  C22B3/00 ,  C22B21/00

CPC classification number: C22B15/0063 ,  C22B3/02 ,  C22B7/005 ,  C22B19/22 ,  C22B21/0015 ,  C22B23/0407 ,  C22B25/04 ,  Y02P10/234 ,  Y02P10/236

Abstract: Disclosed, is a system and method for rapidly leaching copper, in particular, metallic copper in sulfate systems. Embodiments of the system may comprise a first pre-leach stage, and a second mechano-chemical leach stage. The pre-leach stage may be configured to leach zinc, tin, nickel and/or aluminum from non-ferrous bottom ash to produce a product; and the mechano-chemical leach stage may be configured to leach copper from said product. Mechano-chemical leaching may be employed in the first pre-leach stage, without limitation.

Abstract translation: 公开了一种快速浸出铜，特别是硫酸盐体系中的金属铜的系统和方法。 该系统的实施方式可以包括第一预浸提阶段和第二机械化学浸出阶段。 预浸阶段可以配置为从非铁底灰中浸出锌，锡，镍和/或铝以生产产品; 并且机械化学浸出阶段可以被配置为从所述产品中浸出铜。 机械化学浸出可用于第一预浸提阶段，没有限制。