公开(公告)号：US20150259766A1

公开(公告)日：2015-09-17

申请号：US14631527

申请日：2015-02-25

Applicant: COLORADO SCHOOL OF MINES

Inventor： Joseph Grogan ,  Corby G. Anderson ,  Gerard P. Martins

IPC: C22B3/00 ,  C22B7/00

CPC classification number: C22B19/22 ,  B01D61/243 ,  C22B7/007 ,  C22B19/26 ,  C23F1/30 ,  C23F1/44 ,  C25F5/00 ,  Y02P10/234

Abstract: A system and method for decoating a scrap coated metal in a leach solution uses direct measuring of the corrosion potential of the scrap metal in the system to determine the progress of the decoating process and end the process when the scrap is decoated. Corrosion potential measurements are made using a working electrode comprising more than one piece of scrap coated-metal within the system. The decoating system and method may include a system for recycling leach solution.

Abstract translation: 用于对浸出溶液中的废金属涂覆金属进行脱色的系统和方法使用系统中废金属的腐蚀电位的直接测量来确定脱漆过程的进程并且在废料被去硫化时结束该过程。 使用在系统内包含多于一片废涂层金属的工作电极进行腐蚀电位测量。 脱漆系统和方法可以包括用于回收浸出溶液的系统。

公开(公告)号：US10087502B2

公开(公告)日：2018-10-02

申请号：US14631527

申请日：2015-02-25

Applicant: COLORADO SCHOOL OF MINES

Inventor： Joseph Grogan ,  Corby G. Anderson ,  Gerard P. Martins

IPC: C22B7/00 ,  C25F5/00 ,  B01D61/24 ,  C22B3/00 ,  C23F1/30 ,  C23F1/44

Abstract: A system and method for decoating a scrap coated metal in a leach solution uses direct measuring of the corrosion potential of the scrap metal in the system to determine the progress of the decoating process and end the process when the scrap is decoated. Corrosion potential measurements are made using a working electrode comprising more than one piece of scrap coated-metal within the system. The decoating system and method may include a system for recycling leach solution.

公开(公告)号：US20150123030A1

公开(公告)日：2015-05-07

申请号：US14531770

申请日：2014-11-03

Applicant: Colorado School of Mines

Inventor： Kimberly D. Conner ,  Corby G. Anderson

IPC: C22B15/00 ,  B01J8/10 ,  B01J8/08 ,  C22B7/00

CPC classification number: C22B15/0008 ,  C22B1/11

Abstract: Disclosed herein is a treated ore solid comprising a reduced amount of a contaminant, for example arsenic, compared to the ore solid prior to treatment. Also disclosed are temperature and pressure modifications, parameters, and methods for treating an ore solid by pressure oxidation leaching of enargite concentrates. The disclosed methods and processes may be applied to copper sulfide orebodies and concentrates containing arsenic. In some cases, the disclosed methods and systems extract, remove, or reduce contaminants, for example arsenic, from an ore containing solution at moderately increased temperature, pressure, and oxygen concentration, and in the presence of an acid.

Abstract translation: 本文公开了与处理前的矿石固体相比，处理的矿石固体包含减少量的污染物，例如砷。 还公开了通过高浓度浓缩物的压力氧化浸出来处理矿石固体的温度和压力变化，参数和方法。 所公开的方法和方法可以应用于含有砷的硫化铜矿体和浓缩物。 在一些情况下，所公开的方法和系统在适度升高的温度，压力和氧气浓度下以及在酸的存在下，从含矿溶液中提取，除去或减少污染物，例如砷。

公开(公告)号：US11149328B2

公开(公告)日：2021-10-19

申请号：US14531770

申请日：2014-11-03

Applicant: Colorado School of Mines

Inventor： Kimberly D. Conner ,  Corby G. Anderson

IPC: C22B15/00 ,  C22B1/11 ,  C22B30/04 ,  C22B3/08

Abstract: Disclosed herein is a treated ore solid comprising a reduced amount of a contaminant, for example arsenic, compared to the ore solid prior to treatment. Also disclosed are temperature and pressure modifications, parameters, and methods for treating an ore solid by pressure oxidation leaching of enargite concentrates. The disclosed methods and processes may be applied to copper sulfide orebodies and concentrates containing arsenic. In some cases, the disclosed methods and systems extract, remove, or reduce contaminants, for example arsenic, from an ore containing solution at moderately increased temperature, pressure, and oxygen concentration, and in the presence of an acid.

公开(公告)号：US10696562B2

公开(公告)日：2020-06-30

申请号：US14562430

申请日：2014-12-05

Applicant: Colorado School of Mines

Inventor： Benjamin V. Kronholm ,  Corby G. Anderson

IPC: C01F17/00 ,  B01D15/38 ,  B01D15/36

Abstract: Disclosed herein are methods, techniques, and processes for enhancing the purity of a mixed rare earth solution. In one embodiment the rare earth mixture may include Lanthanum, Cerium, Praseodymium, Neodymium, Promethium, Samarium, Europium, Gadolinium, Terbium, Dysprosium, Holmium, Erbium, Thulium, Ytterbium, Lutetium, Scandium, and/or Yttrium. In one embodiment, the resin is a chelating resin that interacts poorly with one or more rare earth elements. In one embodiment a rare earth is selectively excluded for example, Lanthanum (sometimes considered a transition metal), Cerium, Praseodymium, Neodymium, Promethium, Samarium, Europium, Gadolinium, Terbium, Dysprosium, Holmium, Erbium, Thulium, Ytterbium, Lutetium, Scandium, and/or Yttrium. In one embodiment, yttrium is selectively excluded from the column.

公开(公告)号：US20170028410A1

公开(公告)日：2017-02-02

申请号：US15225690

申请日：2016-08-01

Applicant: Colorado School of Mines

Inventor： Corby G. Anderson ,  Hao Cui

IPC: B03D1/008 ,  B03C1/033 ,  B03D1/01 ,  C01F17/00

CPC classification number: B03D1/008 ,  B03C1/032 ,  B03C1/0335 ,  B03C2201/18 ,  B03C2201/20 ,  B03D1/002 ,  B03D1/01 ,  B03D1/012 ,  B03D1/02 ,  B03D2201/007 ,  B03D2201/02 ,  B03D2203/04 ,  B03D2203/10 ,  C01F17/005

Abstract: Disclosed herein are methods and systems for recovery of ancylite, a rare earth mineral comprising strontium carbonate, from rare earth ore. In many embodiments, the disclosed methods and systems provide for recovery of greater than 50% of the ancylite from an ancylite containing ore. In many embodiments, the ore is subjected to flotation in the presence of an acid, for example a hydroxamic acid, such as octanohydroxamic acid. The ore may also be subjected to magnetic separation, for example wet high intensity magnetic separation.

Abstract translation: 本文公开了用于从稀土矿石中回收含有碳酸锶的稀土矿物的方法和系统。 在许多实施例中，所公开的方法和系统提供从含有矿物的矿物中回收大于50％的副矿。 在许多实施方案中，矿石在酸存在下进行浮选，例如异羟肟酸如辛酸异羟肟酸。 矿石也可以进行磁分离，例如湿高强度磁分离。

公开(公告)号：US20150158736A1

公开(公告)日：2015-06-11

申请号：US14562430

申请日：2014-12-05

Applicant: Colorado School of Mines

Inventor： Benjamin V. Kronholm ,  Corby G. Anderson

IPC: C01F17/00

Abstract: Disclosed herein are methods, techniques, and processes for enhancing the purity of a mixed rare earth solution. In one embodiment the rare earth mixture may include Lanthanum, Cerium, Praseodymium, Neodymium, Promethium, Samarium, Europium, Gadolinium, Terbium, Dysprosium, Holmium, Erbium, Thulium, Ytterbium, Lutetium, Scandium, and/or Yttrium. In one embodiment, the resin is a chelating resin that interacts poorly with one or more rare earth elements. In one embodiment a rare earth is selectively excluded for example, Lanthanum (sometimes considered a transition metal), Cerium, Praseodymium, Neodymium, Promethium, Samarium, Europium, Gadolinium, Terbium, Dysprosium, Holmium, Erbium, Thulium, Ytterbium, Lutetium, Scandium, and/or Yttrium. In one embodiment, yttrium is selectively excluded from the column.

Abstract translation: 本文公开了用于提高混合稀土溶液的纯度的方法，技术和方法。 在一个实施方案中，稀土混合物可以包括镧，铈，镨，钕，铽，钐，铕，钆，铽，镝，钬，铒，ium，镱，镥，钪和/或钇。 在一个实施方案中，树脂是与一种或多种稀土元素相互作用较弱的螯合树脂。 在一个实施方案中，稀土被选择性排除，例如镧（有时被认为是过渡金属），铈，镨，钕，ium，钐，铕，钆，铽，镝，钬，铒，ium，镱，镥，钪 ，和/或钇。 在一个实施方案中，钇选择性地从柱中排除。