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公开(公告)号：US10758919B2
公开(公告)日：2020-09-01
申请号：US15299955
申请日：2016-10-21
摘要： THIS invention relates to a process for recovering value metals from ore (50) configured such as to substantively reduce or eliminate the need for a tailings storage facility. This object is achieved through an integrated processing system designed to enhance the ratio of sand residue from coarse flotation (62) to the amount of tailings arising from fine flotation (72), and then blending a proportion of coarse and fine flotation gangue materials into a free draining stack (82).
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公开(公告)号：US20180369869A1
公开(公告)日：2018-12-27
申请号：US15980462
申请日：2018-05-15
摘要： This invention relates to a process for recovering value metals from sulphide ore, including steps of crushing ore in a primary crusher (14) to a size of about 40 cm and less, passing the crushed ore through one or more of the following pre-beneficiation processes such as bulk sorting (16) and screening (20) followed by coarse floatation (46/50), or gravity separation or magnetic separation. A waste stream (54) from the pre-beneficiation process/es with a particle size greater than 100 μm is stacked in a heap (26) and subjected to a heap leach. This integrated process utilises the pre-beneficiation techniques best suited to the characteristics of a particular orebody; and during the pre-beneficiation simultaneously creating a low grade stream that yields significantly higher recoveries than achievable by normal heap leaching of low grade run of mine ore.
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公开(公告)号：US11286541B2
公开(公告)日：2022-03-29
申请号：US16446676
申请日：2019-06-20
摘要： This invention relates to a method for processing nickel laterite ore, including the steps of obtaining a mined laterite ore from a mining operation 42; and feeding the ore through a bulk sorter 44 comprising a sensor arrangement and a diverting mechanism that separates the ore into a beneficiated stream of nickel laterite ore 28 wherein the grade of nickel is higher than the grade of the ore fed into the bulk sorter for further processing 52 by leaching or smelting; one or more low grade fractions of ore 50 with a lower nickel grade than the beneficiated stream; and a waste fraction 46. This configuration efficiently separates lower grade patches in the run of mine ore, to either a low-grade stockpile or waste, and efficiently blends the selected high-grade ore to meet the specifications of the subsequent processing.
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公开(公告)号：US11203044B2
公开(公告)日：2021-12-21
申请号：US15980462
申请日：2018-05-15
IPC分类号： B03B7/00 , B03D1/02 , C22B3/04 , C22B1/00 , B07B15/00 , B03D1/06 , B02C23/14 , B07B13/04 , C22B11/00 , C22B15/00 , B02C23/10
摘要： This invention relates to a process for recovering value metals from sulphide ore, including steps of crushing ore in a primary crusher (14) to a size of about 40 cm and less, passing the crushed ore through one or more of the following pre-beneficiation processes such as bulk sorting (16) and screening (20) followed by coarse floatation (46/50), or gravity separation or magnetic separation. A waste stream (54) from the pre-beneficiation process/es with a particle size greater than 100 μm is stacked in a heap (26) and subjected to a heap leach. This integrated process utilises the pre-beneficiation techniques best suited to the characteristics of a particular orebody; and during the pre-beneficiation simultaneously creating a low grade stream that yields significantly higher recoveries than achievable by normal heap leaching of low grade run of mine ore.
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公开(公告)号：US11162361B2
公开(公告)日：2021-11-02
申请号：US16023435
申请日：2018-06-29
IPC分类号： E21C41/30 , E21C47/00 , E02F7/10 , E21F13/06 , E21C35/20 , B65G53/30 , B02C23/20 , E02F7/00 , E21C41/00 , B02C21/02 , E21F13/00
摘要： The invention relates to a method for mining and processing of an ore. The method comprises at least one mobile comminution device (26) comprising at least one mobile crusher unit and at least one mobile grinding unit located proximate to an ore body that is being mined (20), fragmented ore (22) from the ore body is comminuted in the mobile comminution device (26) to a size which can be readily pumped (28) without the use of special carrier fluids, preferably to a particle size p50 in the range between 0.05 to 1 mm and the comminuted ore is combined with water to form a slurry.
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公开(公告)号：US09968945B1
公开(公告)日：2018-05-15
申请号：US15631137
申请日：2017-06-23
CPC分类号： B03D1/002 , B02C23/10 , B02C23/14 , B03D1/012 , B03D1/02 , B03D1/087 , B03D1/12 , B03D1/14 , B03D2203/02 , C22B1/00 , C22B3/04
摘要： This invention relates to an integrated process for recovering value metals from sulphide ore which includes the steps of bulk sorting 16 and screening 24/28 crushed ore. The sorted/screened coarse ore stream is ground and classified 20 to provide a coarse fraction 34 suitable for coarse flotation and a first fine fraction 38 suitable for flotation. The coarse fraction suitable for coarse flotation is subjected to coarse flotation 36 thereby to obtain a gangue 42 and an intermediate concentrate 46. The intermediate concentrate is subjected to grinding 48 to provide a second fine fraction suitable for conventional flotation. The first fine fraction and the second fine fraction are subjected to conventional flotation 40 to provide a concentrate and tailings. This process that capitalizes on the natural heterogeneity of sulphide orebodies, and utilizes bulk sorting, screening and coarse flotation beneficiation technologies in a novel multistage configuration to reject the maximum quantity of waste gangue prior to fine comminution.
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