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公开(公告)号：US20220410175A1
公开(公告)日：2022-12-29
申请号：US17780196
申请日：2020-12-11
发明人： Guillaume JAUNKY , Wolfgang GRIESEL , Allison GREENE , Michael D. COPPOLA , Kevin LASSILA , Michael RYAN , Paul DOLAN , Mark R. FERNALD , Paul J. ROTHMAN
摘要： An apparatus for removing mineral particles from loaded engineered collection media includes one or more solvents with sufficiently low surface tension. The engineered collection media are made of a synthetic material and have a surface coated with a hydrophobic material to provide a chemical bond between the mineral particles and the surface. The solvents together with a releasing mechanism are arranged to disrupt the chemical bond. Preferably, a surfactant or a nonionic surfactant is also added to the solvents.
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公开(公告)号：US20220016645A1
公开(公告)日：2022-01-20
申请号：US17490198
申请日：2021-09-30
发明人： Mark R. FERNALD , Paul J. ROTHMAN , Alan D. KERSEY
摘要： Apparatus uses hydrophobic synthetic beads to recover mineral particles in a slurry. The synthetic beads and the slurry are mixed into a mixture for processing. The apparatus has an interaction vessel installed in a section of pipeline. The interaction vessel is made from a pipeline folded or coiled into a compact struction having a continuous flow path. The interaction vessel has an input to receive the mixture of slurry and synthetic beads. The folded or coiled structure is used to increase the residence time of the mixture in the flow path, allowing more time for the mineral particles in the slurry to attach to the surface of the synthetic bead, while maintaining a small footprint. The interaction vessel may be formed from a number of loops of pipe section. The interaction vessel may be formed from one or more folded structures.
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公开(公告)号：US20200030819A1
公开(公告)日：2020-01-30
申请号：US16489977
申请日：2018-03-01
发明人： Paul J. ROTHMAN , Mark R. FERNALD , Paul DOLAN , Michael Stephen RYAN , Michael D. COPPOLA , Kevin Rodney LASSILA , Allison K. GREENE
IPC分类号： B03D1/02
摘要： A substrate for use in an aqueous slurry has a polymeric coating to provide a compliant and sticky surface. The polymer coating has a chemical to render the surface hydrophobic so as to attract hydrophobic or hydrophobized mineral particles in the slurry. The surface has a surface roughness structure in the nano-scale to micro-scale range. The substrate can take the form of a conveyor belt, a bead, a mesh, an impeller, a filter or a flat surface. The substrate can also be an open-cell foam. The polymeric coating can be modified with tackifiers; plasticizers; crosslinking agents; chain transfer agents; chain extenders; adhesion promoters; aryl or alky copolymers; fluorinated copolymers and/or additives; hydrophobicizing agents such as hexamethyldisilazane; inorganic particles such as silica, hydrophobic silica, and/or fumed hydrophobic silica; MQ resin; and/or other additives to control and modify the properties of the polymer.
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公开(公告)号：US20210071283A1
公开(公告)日：2021-03-11
申请号：US17001844
申请日：2020-08-25
摘要： A copper/molybdenum separation processor is provide featuring a slurry/media mixture stage configured to receive a conditioned pulp containing hydrophobic molybdenite and hydrophilic copper, iron and other minerals that is conditioned with sodium hydrosulfide together with an engineered polymeric hydrophobic media, and provide a slurry/media mixture; and a slurry/media separation stage configured to receive the slurry/media mixture, and provide a slurry product having a copper concentrate and a polymerized hydrophobic media product having a molybdenum concentrate that are separately directed for further processing. The slurry/media mixture stage include a molybdenum loading stage configured to contact the conditioned pulp with the engineered polymeric hydrophobic media in an agitated reaction chamber, and load the hydrophobic molybdenite on the engineered polymeric hydrophobic media.
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公开(公告)号：US20200070074A1
公开(公告)日：2020-03-05
申请号：US16347004
申请日：2017-11-02
发明人： Paul J. ROTHMAN , Mark R. FERNALD , Paul DOLAN , Michael RYAN , Michael D. COPPOLA , Kevin Rodney LASSILA , Allison K. GREENE
IPC分类号： B01D37/02 , C09D183/04 , B01D63/08 , B01D69/06 , B01D69/02
摘要： A substrate for use in an aqueous slurry has a polymeric coating to provide a compliant and sticky surface. The polymer coating has a chemical to render the surface hydrophobic so as to attract hydrophobic or hydrophobized mineral particles in the slurry. The substrate can take the form of a conveyor belt, a bead, a mesh, an impeller, a filter or a flat surface. The substrate can also be an open-cell foam. The polymeric coating can be modified with tackifiers; plasticizers; crosslinking agents; chain transfer agents; chain extenders; adhesion promoters; aryl or alky copolymers; fluorinated copolymers and/or additives; hydrophobicizing agents such as hexamethyldisilazane; inorganic particles such as silica, hydrophobic silica, and/or fumed hydrophobic silica; MQ resin; and/or other additives to control and modify the properties of the polymer.
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6.发明申请公开(公告)号：US20190275533A1
公开(公告)日：2019-09-12
申请号：US16346706
申请日：2017-11-01
发明人： Mark R. FERNALD , Paul J. ROTHMAN , Paul DOLAN , Kirk JOHNSON , Patrick TUXBURY , Sandeep BALASUBRAMANYAM , Peter A. AMELUNXEN , Timothy J. BAILEY , Adam JORDENS , Joseph NORD
摘要： A reactor system has a number of stations arranged to recover mineral particles in a slurry. The system includes a hopper to receive the slurry and barren media having hydrophobic coating to attract the mineral particles. The hopper provides a mixture of barren media and slurry to a tumbler arranged to stir the mixture in order to increase the contact between the slurry and the barren media so as to allow the mineral particles to attach to the barren media to form mineral laden media. The mineral laden media are conveyed to a rinsing station where water jets are used to wash the gangue materials off the mineral laden media. The rinsed mineral laden media are mixed with a surfactant so that the mineral particles are released from the mineral laden media. High-pressure water and air jets are then used to remove remaining surfactant from the released media.
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公开(公告)号：US20190009280A1
公开(公告)日：2019-01-10
申请号：US16066160
申请日：2016-12-28
发明人： Paul J. ROTHMAN , Mark R. FERNALD , Peter A. AMELUNXEN , Paul DOLAN , Timothy J. BAILEY , Michael RYAN
摘要： Apparatus uses engineered collection media to recover mineral particles in a slurry. The apparatus has a tumbler cell and a rotation device to rotate the tumbler cell. The tumbler cell has a container to hold a mixture of the engineered media and the slurry containing the mineral particles. The container is turned such that at least part of the mixture in the upper part of the container is caused to interact with at least part of the mixture in the lower part of the container. As such, the contact between the engineered media and the mineral particles is enhanced. The surfaces of the engineered media are functionalized with a chemical having molecules to attract the mineral particles to the surfaces so as to form mineral laden media. After the mineral laden media are discharged from the tumbler cell, the mineral particles can be separated from the engineered media by stripping.
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公开(公告)号：US20220023876A1
公开(公告)日：2022-01-27
申请号：US17495105
申请日：2021-10-06
发明人： Mark R. FERNALD , Paul J. ROTHMAN , Paul DOLAN , Kirk JOHNSON , Patrick TUXBURY , Sandeep BALASUBRAMANYAM , Peter A. AMELUNXEN , Timothy J. BAILEY , Adam JORDENS , Joseph NORD
摘要： A reactor system has a number of stations arranged to recover mineral particles in a slurry. The system includes a hopper to receive the slurry and barren media having hydrophobic coating to attract the mineral particles. The hopper provides a mixture of barren media and slurry to a tumbler arranged to stir the mixture in order to increase the contact between the slurry and the barren media so as to allow the mineral particles to attach to the barren media to form mineral laden media. The mineral laden media are conveyed to a rinsing station where water jets are used to wash the gangue materials off the mineral laden media. The rinsed mineral laden media are mixed with a surfactant so that the mineral particles are released from the mineral laden media. High-pressure water and air jets are then used to remove remaining surfactant from the released media.
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公开(公告)号：US20210379603A1
公开(公告)日：2021-12-09
申请号：US16968181
申请日：2019-02-07
发明人： Paul J. ROTHMAN , Mark R. FERNALD , Francis DIDDEN , Christian V. O'KEEFE , Douglas H. ADAMSON , Paul DOLAN , Timothy J. BAILEY , Michael Stephen RYAN , Weiguo HUANG , Kevin Rodney LASSILA , Michael D. COPPOLA , Allison K. GREENE
摘要： An engineered collection medium for use in mineral separation is described. The engineered collection medium has a solid phase body configured with a three-dimensional open-cell structure like foam or sponge to provide collection surfaces. The three-dimensional surface structure is made of a hydrophobic material which is a reaction product of isocyanate and polyol promotes the attraction of mineral particles to the collection surfaces as a hydrophobic foam. The hydrophobic foam can be in the form of a cube, sphere, or sheet and can be used in a filter or conveyor belt in a processor.
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公开(公告)号：US20190234854A1
公开(公告)日：2019-08-01
申请号：US16339216
申请日：2017-10-04
发明人： Alan D. KERSEY , Paul J. ROTHMAN
摘要： Apparatus is provided for mineral separation, featuring a mixer configured to mix a mineral bearing ore feed and hydrophobic media particles, the mineral bearing ore feed being crushed and ground and having an ore particle size distribution characterized by about 50% or more of particles at a size of about 150 μm or less with finer particulates and mid-range particles, the hydrophobic polymer based particles having a media size of about 300 μm or more and being configured to collect the finer particulates and mid-range particles in the mineral bearing ore through hydrophobic attraction, and provide a modified feed having loaded “coarse particles” loaded with the finer particulates and mid-range particles attached thereto for further processing.
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