公开(公告)号：US11878937B2

公开(公告)日：2024-01-23

申请号：US16925944

申请日：2020-07-10

Applicant: Heraeus Quarzglas GmbH & Co. KG ,  Heraeus Conamic UK Limited

Inventor： Ian George Sayce ,  Michael Schindler ,  Fabian Schildt ,  Eduard Visnow

IPC: C03C3/06 ,  C22B59/00 ,  C22B60/02 ,  C22B3/22 ,  B03B5/62 ,  C01B33/12 ,  C03C1/02

CPC classification number: C03C3/06 ,  B03B5/623 ,  C01B33/12 ,  C03C1/022 ,  C22B3/22 ,  C22B59/00 ,  C22B60/0252 ,  C22B60/0291 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2006/80 ,  C03C2201/02

Abstract: Described is a process for the refinement of a quartz powder, comprising the step of separating microparticles of refractory minerals, in particular minerals containing rare earth metal compounds, from the quartz powder by an elutriation step.

公开(公告)号：US10006103B2

公开(公告)日：2018-06-26

申请号：US15034779

申请日：2014-11-06

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Agnes Grandjean ,  Frederic Cuer

IPC: C22B60/00 ,  C22B60/02 ,  C22B3/42 ,  B01J20/32 ,  B01J20/28 ,  B01J20/22

CPC classification number: C22B60/0234 ,  B01J20/22 ,  B01J20/28083 ,  B01J20/3204 ,  B01J20/3251 ,  B01J20/3259 ,  C22B3/42 ,  C22B60/0252 ,  Y02P10/234

Abstract: The invention relates to the use of an organic-inorganic hybrid material, comprising an inorganic solid support on which are grafted organic molecules having the general formula (I) below: in which: x, y and z=0 or 1, with at least one of x, y and z different from 0; m=1 to 6; v and w=0 or 1, with v=1 when w=0, and v=0 when w=1; if x=0, R1═H or a saturated or unsaturated, linear or branched, C1 to C12 hydrocarbon group, whereas, if x=1, R1=a group bound to the inorganic solid support by at least one covalent bond; if y=0, R2═H or a saturated or unsaturated, linear or branched, C1 to C12 hydrocarbon group, whereas, if y=1, R2=a group bound to the inorganic solid support by at least one covalent bond; if z=0, R3═H or a saturated or unsaturated, linear or branched, C1 to C12 hydrocarbon group, whereas, if z=1, R3=a group bound to the inorganic solid support by at least one covalent bond; R4 and R5═H, a saturated or unsaturated, linear or branched, C2 to C8 hydrocarbon group, or a monocyclic aromatic group; for extracting uranium(VI) from a sulfuric acid aqueous solution. The invention also relates to a method that makes it possible to recover the uranium(VI) present in a sulfuric acid aqueous solution, selectively with respect to the other metal cations that may also be present in said solution.

公开(公告)号：US09822429B2

公开(公告)日：2017-11-21

申请号：US13519767

申请日：2011-01-07

Applicant: Glenn Jobling

Inventor： Glenn Jobling

IPC: C22B60/00 ,  C22B60/02 ,  C01G43/01

CPC classification number: C22B60/0252 ,  C01G43/01 ,  C01P2006/10

Abstract: The present invention provides a process for the production of a uranium trioxide yellowcake from a uranium peroxide precipitate, the peroxide precipitate being in the form of a low solids content, uranium rich feed slurry, the process including the stages of: a. thickening the feed slurry to produce a thickener underflow with a solids content in the range of 15 to 50% w/w and a thickener overflow; b. dewatering the thickener underflow to produce a solids cake with a solids content of at least 50% w/w and a dewater overflow; and c. calcining the solids cake at a temperature in the range of 450° C. to 480° C. to produce a calcined uranium trioxide yellowcake.

公开(公告)号：US20170022585A1

公开(公告)日：2017-01-26

申请号：US15108231

申请日：2014-04-22

Applicant: PALADIN INTELLECTUAL PROPERTY PTY LTD

Inventor： Paul BOSHOFF ,  Merrill FORD ,  Shana MCDOUGALL ,  Mark PEACOCK

IPC: C22B60/02 ,  B01D61/02 ,  B01D61/58 ,  B01D61/08 ,  B01D61/18 ,  B01D21/00 ,  B01D61/14 ,  B01D65/08

CPC classification number: C22B60/0252 ,  B01D21/0024 ,  B01D61/027 ,  B01D61/08 ,  B01D61/14 ,  B01D61/145 ,  B01D61/18 ,  B01D61/58 ,  B01D65/08 ,  B01D2311/04 ,  B01D2311/10 ,  B01D2311/14 ,  B01D2317/025 ,  B01D2317/04 ,  B01D2317/06 ,  B01D2317/08 ,  B01D2321/02 ,  C22B60/0234 ,  C22B60/0247

Abstract: Disclosed herein is a method for recovering an acid or a base during a metal extraction process. The method comprises contacting a feed stream comprising the acid or base and the metal with an ultrafiltration membrane to produce an ultrafiltration retentate and an ultrafiltration permeate, and contacting the ultrafiltration permeate with a nanofiltration membrane. The nanofiltration retentate produced comprises a majority of the metal from the feed stream, and the nanofiltration permeate produced comprises a majority of the acid or base from the feed stream. Also disclosed herein is a recovery apparatus for recovering an acid or a base during a metal extraction process.

Abstract translation: 本文公开了一种在金属萃取过程中回收酸或碱的方法。 该方法包括使包含酸或碱和金属的进料流与超滤膜接触以产生超滤滞留物和超滤渗透物，并使超滤渗透物与纳滤膜接触。 产生的纳滤过滤滞留物包括来自进料流的大部分金属，并且所产生的纳滤过滤渗透物包含来自进料流的大部分酸或碱。 本文还公开了一种用于在金属提取过程中回收酸或碱的回收装置。

公开(公告)号：US09447483B2

公开(公告)日：2016-09-20

申请号：US13837158

申请日：2013-03-15

Applicant: FREEPORT-MCMORAN CORPORATION

Inventor： Anand Raman ,  Jason M Morgan ,  Barbara J Savage ,  David G Meadows ,  Wayne W Hazen

IPC: C22B3/02 ,  C25B9/00 ,  C25C1/12 ,  C22B60/02 ,  C22B3/26 ,  B01D11/04 ,  C25C1/00 ,  C22B3/44 ,  C22B3/00 ,  C22B19/00 ,  C22B34/34 ,  C22B59/00 ,  C22B61/00

CPC classification number: C25C1/22 ,  B01D11/0488 ,  C22B3/0005 ,  C22B3/02 ,  C22B3/44 ,  C22B11/04 ,  C22B19/00 ,  C22B23/0407 ,  C22B23/0453 ,  C22B23/0461 ,  C22B34/34 ,  C22B59/00 ,  C22B60/0221 ,  C22B60/0252 ,  C22B60/0278 ,  C22B61/00 ,  C25C1/00 ,  C25C1/08 ,  C25C1/10 ,  C25C7/00 ,  Y02P10/234

Abstract: The present disclosure relates to a process and system for recovery of one or more metal values using solution extraction techniques and to a system for metal value recovery. In an exemplary embodiment, the solution extraction system comprises a first solution extraction circuit and a second solution extraction circuit. A first metal-bearing solution is provided to the first and second circuit, and a second metal-bearing solution is provided to the first circuit. The first circuit produces a first rich electrolyte solution, which can be forwarded to primary metal value recovery, and a low-grade raffinate, which is forwarded to secondary metal value recovery. The second circuit produces a second rich electrolyte solution, which is also forwarded to primary metal value recovery. The first and second solution extraction circuits have independent organic phases and each circuit can operate independently of the other circuit.

公开(公告)号：US4759913A

公开(公告)日：1988-07-26

申请号：US38726

申请日：1987-04-15

Applicant: Thomas A. Headington

Inventor： Thomas A. Headington

IPC: C01B25/235 ,  C22B3/22 ,  C22B3/26 ,  C22B60/02

CPC classification number: C01B25/235 ,  C22B3/0005 ,  C22B3/22 ,  C22B60/0252 ,  C22B60/026 ,  Y02P10/234

Abstract: A process for the recovery of an organic phase and an aqueous phase from three phase emulsions such as those formed during the extraction of uranium from wet phosphoric acid is described. Such emulsions contain a light-density liquid phase and a heavy-density liquid phase and are stabilized by a solid phase of intermediate density. The emulsion is first heated and then separated into its three components using a centrifugal filter with an appropriate filter aid. At high filter feed rates the dense liquid phase passes freely through the filter media while the light phase liquid begins to accumulate in the centrifuge and is withdrawn from the centrifuge via a properly positioned skimmer tube. The apparatus containing the skimmer tube is also described.

Abstract translation: 描述了从三相乳液回收有机相和水相的方法，例如在从湿磷酸提取铀过程中形成的那些。 这种乳液含有光密度液相和重密度液相，并通过中等密度的固相稳定。 首先将乳液加热，然后使用具有合适助滤剂的离心过滤器将其分离成其三种组分。 在高过滤器进料速率下，致密液相自由通过过滤介质，而轻相液体开始积聚在离心机中，并通过适当定位的撇渣管从离心机中取出。 还描述了包含撇渣管的装置。

公开(公告)号：US4705672A

公开(公告)日：1987-11-10

申请号：US856552

申请日：1986-04-28

Applicant: John W. McCurdy ,  Brian H. Danyliw

Inventor： John W. McCurdy ,  Brian H. Danyliw

IPC: B01D37/02 ,  C22B60/02 ,  C01G56/00 ,  B01D21/01 ,  C01G57/00 ,  C02F1/52

CPC classification number: B01D37/02 ,  C22B60/0252

Abstract: The present invention is directed to a process to improve the suspended solids removal by the filter cloth used in the clarification of leached uranium ore, comprising contacting the filter cloth with an effective amount of an acrylamide polymer.

Abstract translation: 本发明涉及一种改进用于澄清浸出的铀矿石的滤布去除悬浮固体的方法，包括使滤布与有效量的丙烯酰胺聚合物接触。

公开(公告)号：US2773824A

公开(公告)日：1956-12-11

申请号：US59801245

申请日：1945-06-07

Applicant: BOYER ROBERT Q ,  KILNER SCOTT B

Inventor： BOYER ROBERT Q ,  KILNER SCOTT B

IPC: C22B60/02

CPC classification number: C22B60/0252

公开(公告)号：US2743228A

公开(公告)日：1956-04-24

申请号：US53216244

申请日：1944-04-21

Applicant: BOYER ROBERT Q

Inventor： BOYER ROBERT Q

IPC: C22B60/02 ,  C25C7/00

CPC classification number: C25C7/007 ,  C22B60/0252

公开(公告)号：US11713498B2

公开(公告)日：2023-08-01

申请号：US16773779

申请日：2020-01-27

Applicant: Korea Atomic Energy Research Institute

Inventor： Ki Nam Kim ,  Sung Chan Park ,  Yong Jin Jeong ,  Kyu Hong Lee ,  Sung Hwan Kim ,  Tae Won Cho ,  Jong Man Park

IPC: C22C43/00 ,  B22F3/18 ,  B22F3/02 ,  B22F3/24 ,  C22B60/02

CPC classification number: C22C43/00 ,  B22F3/02 ,  B22F3/18 ,  B22F3/24 ,  C22B60/0252 ,  B22F2003/185 ,  B22F2003/248 ,  B22F2998/10 ,  B22F1/09 ,  B22F3/02 ,  B22F2003/185 ,  B22F3/18 ,  B22F2003/244

Abstract: Disclosed are a method of manufacturing a uranium target, the method including (a) a step of preparing a conjugate including a matrix and a uranium target green compact formed in the matrix; and (b) a step of performing thermo-mechanical treatment through additional heat treatment at 530° C. to 600° C. during a hot rolling pass in a process of hot-rolling the conjugate, and a method of extracting radioactive Mo-99 using the uranium target.