-
公开(公告)号：US10774400B2
公开(公告)日：2020-09-15
申请号：US15764501
申请日：2016-10-17
摘要： A copper/molybdenum separation processor is provided 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.
-
公开(公告)号：US11440026B2
公开(公告)日：2022-09-13
申请号：US17034258
申请日：2020-09-28
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.
-
公开(公告)号：US11247214B2
公开(公告)日：2022-02-15
申请号：US16552651
申请日：2018-02-28
摘要： A system for separating mineral particles of interest from an ore features mineral processing operations/stages/circuits configured to receive an ore, or mineral particles or concentrates formed by processing the ore, and provide processed mineral particles or concentrates, or a waste stream, for further enhanced mineral separation downstream processing; an enhanced mineral separation processor having a collection apparatus located therein, the collection apparatus having a collection surface configured with a functionalized polymer including molecules having a functional group configured to attract the mineral particles of interest to the collection surface, the enhanced mineral separation processor receive the processed mineral particles or concentrates, or the waste stream, and provide further enhanced downstream processed mineral particles or concentrates, or a further enhanced downstream processed waste stream; and a high intensity conditioning operation, stage or circuit configured to apply a high intensity form of energy to the processed mineral particles or concentrates, or the waste stream, prior to further enhanced mineral separation downstream processing by the enhanced mineral separation processor.
-
公开(公告)号：US11241700B2
公开(公告)日：2022-02-08
申请号：US16339836
申请日：2017-10-10
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.
-
公开(公告)号：US11446678B2
公开(公告)日：2022-09-20
申请号：US16555478
申请日：2018-03-01
发明人： Paul J. Rothman
摘要： A modified selective recirculation circuit has a loading stage, a stripping stage and a filtering stage for use in processing a feed stream or slurry containing mineral particles. The stripping stage forms a first loop with the loading stage, a second loop with the filtering stage. The loading stage has a loading mixer and a loading washing screen. The stripping stage has a stripping mixer and a stripping washing screen. The loading mixer receives the slurry and causes barren media in the circuit to contact with the slurry so that the mineral particles in the slurry are loaded onto the barren media. The media is directed to the stripping stage where the mineral particles are removed from the media. The barren media is recycled to the loading stage. The stripping solution recovered from the filtering stage is returned to the stripping stage and the mineral particles are discharged as concentrate.
-
公开(公告)号：US11247212B2
公开(公告)日：2022-02-15
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.
-
公开(公告)号：US11135597B2
公开(公告)日：2021-10-05
申请号：US15951656
申请日：2018-04-12
发明人： Paul J. Rothman , Mark R. Fernald , Francis K. Didden , Christian V. O'Keefe , Douglas H. Adamson
IPC分类号： B03D1/016 , B03D1/02 , B03C5/00 , B03C5/02 , B07B1/00 , B04C1/00 , B03B1/04 , B03C1/01 , B01D37/02 , C02F1/24 , B03D1/14 , B01D39/00 , C22B15/00 , B01D15/02
摘要： A synthetic bead for use in mineral separation is described. The synthetic bead has a surface made of a synthetic material such as polymer and the synthetic material is functionalized with molecules having a functional group for attaching mineral particles to the surface in a separation process. The synthetic beads can be placed in flotation cell containing a mixture of water, valuable material and unwanted material or in a pipeline where the mixture is transported from one location to another. The enriched synthetic beads carrying the mineral particles are separated from the unwanted materials in the mixture. The mineral particles are then released from the synthetic beads by means of low pH treatment, ultrasonic agitation, thermal or electromagnetic treatment.
-
公开(公告)号：US11066725B2
公开(公告)日：2021-07-20
申请号：US16489966
申请日：2018-03-01
摘要： A system is provided for processing a circulating load in comminution circuit of a mineral separation process for separating mineral particles of interest from an ore, featuring: a coarse screen and an enhanced mineral separation circuit (EMSC). The coarse screen may be configured to receive a cyclone underflow having mineral particles of interest and forming part of the circulating load of the comminution circuit, and provide coarse screen feeds for further processing. The enhanced mineral separation circuit may include a collection processor configured to receive one of the coarse screen feeds, and may also include at least one collection apparatus located in the collection processor, the at least one collection apparatus having a collection surface configured with a functionalized polymer comprising a plurality of molecules having a functional group configured to attract the mineral particles of interest to the collection surface, and provide enhanced mineral separation circuit feeds for further processing in the system.
-
公开(公告)号：US11060165B2
公开(公告)日：2021-07-13
申请号：US16339546
申请日：2017-10-04
摘要： A copper/molybdenum separation system uses sea water in the roughing circuit and desalinated water in cleaning circuit. In both roughing circuit and cleaning circuit, hydrophobic engineered media are used to recover the mineral particles of interest. The cleaning circuit includes a molybdenum loading stage configured to contact the conditioned pulp with the engineered media in an agitated reaction chamber, and load the hydrophobic molybdenite on the engineered media.
-
10.发明授权公开(公告)号：US10981181B2
公开(公告)日：2021-04-20
申请号：US15763978
申请日：2016-10-17
摘要： A selective recirculation circuit has a loading stage, a stripping stage and a filtering stage for use in processing a feed stream or slurry containing mineral particles. The stripping stage forms a first loop with the loading stage, and a second loop with the filtering stage. The loading stage has a loading mixer and a loading washing screen. The stripping stage has a stripping mixer and a stripping washing screen. The loading mixer receives the slurry and causes barren media in the circuit to contact with the slurry so that the mineral particles in the slurry are loaded onto the barren media. The media is directed to the stripping stage where the mineral particles are removed from the media. The barren media is recycled to the loading stage. The stripping solution recovered from the filtering stage is returned to the stripping stage and the mineral particles are discharged as concentrate.
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.016 秒)