公开(公告)号：US20170362680A1

公开(公告)日：2017-12-21

申请号：US15537708

申请日：2015-12-14

Applicant: HATCH LTD.

Inventor： Sina MOSTAGHEL ,  Matthew H. CRAMER ,  Santiago FAUCHER ,  Lai Chi SO ,  Johannes NELL

IPC: C22B7/04 ,  C22B7/00 ,  C04B5/00 ,  B03C1/02 ,  B22F9/08 ,  C01B13/16 ,  C01G55/00 ,  G01N33/20 ,  C01B13/34

CPC classification number: C22B7/04 ,  B03C1/02 ,  B03C2201/20 ,  B22F9/082 ,  B22F2009/0824 ,  C01B13/16 ,  C01B13/34 ,  C01G55/004 ,  C01P2006/80 ,  C04B5/00 ,  C22B7/005 ,  G01N33/20 ,  Y02P10/212

Abstract: A method for recovering metal values from a molten slag composition includes atomizing the slag with an oxygen-containing gas in a gas atomization apparatus, to produce solid slag granules. Oxygen in the atomizing gas converts metals to magnetic metal compounds, thereby magnetizing the metal-containing slag granules. These metal-containing slag granules are then magnetically separated. Larger amounts of metals may be removed by passing the molten slag through a pre-settling pan with an adjustable base, and/or discontinuing atomization where the metal content of the slag exceeds a predetermined amount. Solid slag granules produced by atomization may be charged to a recovery unit for recovery of one or more metal by-products. An apparatus for recovering metal values from molten slag includes a gas atomization apparatus, a flow control device for controlling the flow of atomizing gas, a control system, and one or more sensors to detect metal values in the slag.

公开(公告)号：US20210198766A1

公开(公告)日：2021-07-01

申请号：US16078677

申请日：2018-08-15

Applicant: HATCH LTD.

Inventor： David DELVES ,  Mahdi MAHDI ,  Sabrina FRANCEY ,  Yuhin WU ,  Santiago FAUCHER ,  Bruce UYEDA ,  Daniel MAJOR ,  Kamal ADHAM

IPC: C22B1/243 ,  C22B26/12 ,  C22B60/02 ,  B02C23/14 ,  B02C19/06

Abstract: A system and method for dry ablation beneficiation of ore. The system comprises a nozzle to emit an air stream, and a feeder to provide ore particles for entraining in the air stream and colliding. The ore comprises gangue grains bound together with a cementing material. The cementing material comprises a desired material. The collisions are controlled to help preferentially break the cementing material over breaking the bonds holding a gangue grain together. The system also comprises a classifier to separate broken cementing material from the remaining material (which includes gangue grains) based on size. The method comprises entraining the ore particles in an air stream and colliding to preferentially break the cementing material. The ore particles may be collided with each other or a surface. The broken cementing materials are then separated from the remaining materials (which includes gangue grains). The enriched ore is the separated cementing material.