公开(公告)号：US20220009793A1

公开(公告)日：2022-01-13

申请号：US17222264

申请日：2021-04-05

申请人： Hatch Ltd. ,  Northvolt AB

发明人： Robert John FRASER ,  Evangelos STAMATIOU ,  Mark Joseph MACHADO ,  Henry Christian Immo von SCHROETER ,  Mahmood ALEMRAJABI

IPC分类号： C01G53/10 ,  C01G51/10 ,  H01M10/0525 ,  C22B26/12 ,  C22B3/00 ,  C01G45/10 ,  C22B7/00 ,  H01M10/54

摘要： A process for generating a metal sulfate that involves crystallizing a metal sulfate from an aqueous solution to form a crystallized metal sulfate in a mother liquor with uncrystallized metal sulfate remaining in the mother liquor; separating the crystallized metal sulfate from the mother liquor; basifying a portion of the mother liquor to convert the uncrystallized metal sulfate to a basic metal salt; and using the basic metal salt upstream of crystallizing the metal sulfate. So crystallized, the generated metal sulfate may be battery-grade or electroplating-grade.

公开(公告)号：US11146067B2

公开(公告)日：2021-10-12

申请号：US16176528

申请日：2018-10-31

申请人： Hatch Ltd.

发明人： Michael Morgan Campbell ,  Yan Elksnis ,  Dong Shen

IPC分类号： H05B7/148 ,  H02J3/18 ,  H03K17/72 ,  H05B7/18 ,  H02J3/00

摘要： A configuration of switches added to a line control circuit allows for switching back and forth between a configuration featuring a series-connected thyristor switch and reactor and a configuration featuring a parallel-connected thyristor switch and reactor. Connecting the reactor in series with the thyristor switch allows a controlled high-impedance circuit configuration that is particularly well adapted for cold furnace start-ups and furnace idling. In this manner, there is reduced need for such equipment as extra startup transformers, alternate low-voltage power supply configurations and temporary specialty electrical apparatus for cold furnace start-ups.

公开(公告)号：US10705196B2

公开(公告)日：2020-07-07

申请号：US15812462

申请日：2017-11-14

申请人： HATCH LTD.

发明人： Matthew H. Cramer ,  Afshin Sadri ,  Jennifer Erskine ,  David Chataway ,  Bert O. Wasmund ,  Terry Gerritsen

IPC分类号： G01S13/08 ,  G01F23/284 ,  G01S13/88 ,  F27D21/00 ,  F27B3/28 ,  F27B3/08

摘要： A method for determining a length parameter of an electrode during operation of an electric arc furnace. An internal duct extends through the length of the electrode and is open at its lower end. A waveguide having a solid core is received in the internal duct and comprises a material having a low dielectric constant and high temperature resistance. The solid core of the waveguide includes at least one target. An electromagnetic radiation signal is emitted from a source and transmitted through the waveguide and the signal is diffracted and/or reflected from at least one target to produce at least one return signal which is transmitted back through the waveguide. A time or frequency difference between the emitted signal and the return signal is measured and the length parameter is calculated based on this difference.

公开(公告)号：US10527352B2

公开(公告)日：2020-01-07

申请号：US16058543

申请日：2018-08-08

申请人： HATCH LTD.

发明人： Dustin Alexander Vickress ,  Ian Archibald Cameron ,  David Henry Rudge ,  Andriy Ponomar ,  Volodymyr Ponomar ,  Maciej Urban Jastrzebski ,  John Andrew Ferguson Shaw

IPC分类号： F27D1/00 ,  F27D1/06 ,  F27D1/08 ,  F27D1/12 ,  F27B1/24 ,  F27D9/00

摘要： An abrasion-resistant material for the working face of a metallurgical furnace cooling element such as a stave cooler or a tuyere cooler having a body comprised of a first metal. The abrasion-resistant material comprises a macro-composite material including abrasion-resistant particles which are arranged in a substantially repeating, engineered configuration infiltrated with a matrix of a second metal, the particles having a hardness greater than that of the second metal. A cooling element for a metallurgical furnace has a body comprised of the first metal, the body having a facing layer comprising the abrasion-resistant material. A method comprises: positioning the engineered configuration of abrasion-resistant particles in a mold cavity, the engineered configuration located in an area of the mold cavity to define the facing layer; and introducing molten metal into the cavity, the molten metal comprising the first metal of the cooling element body.

公开(公告)号：US10408767B1

公开(公告)日：2019-09-10

申请号：US16007411

申请日：2018-06-13

申请人： HATCH LTD.

发明人： Owen Pearcey

IPC分类号： G01B11/14 ,  G01N21/88 ,  G01N21/95

摘要： A system and method for identifying imperfections in a reflective surface. The reflective surface may be a metal coating on a sheet such as in a galvanization process. The system comprises a laser detector. The laser detector may be part of a triangulation unit. The laser detector takes readings corresponding to the angles of travel of diffuse light of a laser off of different portions of the reflective surface. Imperfections in the surface are identified based on variance in the readings. The method comprises detecting diffuse light of a laser beam off of different portions of the reflective surface, and identifying imperfections based on variances in the angles of travel of the diffuse light detected.

公开(公告)号：US20170362725A1

公开(公告)日：2017-12-21

申请号：US15528357

申请日：2015-11-20

申请人： HATCH LTD.

发明人： MACIEJ URBAN JASTRZEBSKI ,  JOHN ANDREW FERGUSON SHAW ,  DALE PEAREN ,  BERT O. WASMUND ,  DANIEL RICHARD

IPC分类号： C25C3/10

CPC分类号： C25C3/10

摘要： An aluminum reduction cell having a shell structure with a pair of longitudinally extending sidewalls, a pair of transversely extending endwalls, a bottom wall, and an open top having an upper edge. The aluminum reduction cell also has a transverse support structure with transverse bottom beams located under the shell structure and extending transversely between the sidewalls, each of the transverse bottom beams having a pair of opposed ends. The aluminium reduction cell also has compliant binding elements fixed to the transverse support structure, each extending vertically along an outer surface of one of the sidewalls for applying an inwardly directed force said sidewall. The compliant binding elements are in the form of cantilever springs. Each spring has a metal member with a lower end which is secured to the transverse support structure, and a compliant, upper free end which is movable inwardly and outwardly in response to expansion and contraction of the shell structure.

公开(公告)号：US20170362680A1

公开(公告)日：2017-12-21

申请号：US15537708

申请日：2015-12-14

申请人： HATCH LTD.

发明人： Sina MOSTAGHEL ,  Matthew H. CRAMER ,  Santiago FAUCHER ,  Lai Chi SO ,  Johannes NELL

IPC分类号： C22B7/04 ,  C22B7/00 ,  C04B5/00 ,  B03C1/02 ,  B22F9/08 ,  C01B13/16 ,  C01G55/00 ,  G01N33/20 ,  C01B13/34

CPC分类号： C22B7/04 ,  B03C1/02 ,  B03C2201/20 ,  B22F9/082 ,  B22F2009/0824 ,  C01B13/16 ,  C01B13/34 ,  C01G55/004 ,  C01P2006/80 ,  C04B5/00 ,  C22B7/005 ,  G01N33/20 ,  Y02P10/212

摘要： A method for recovering metal values from a molten slag composition includes atomizing the slag with an oxygen-containing gas in a gas atomization apparatus, to produce solid slag granules. Oxygen in the atomizing gas converts metals to magnetic metal compounds, thereby magnetizing the metal-containing slag granules. These metal-containing slag granules are then magnetically separated. Larger amounts of metals may be removed by passing the molten slag through a pre-settling pan with an adjustable base, and/or discontinuing atomization where the metal content of the slag exceeds a predetermined amount. Solid slag granules produced by atomization may be charged to a recovery unit for recovery of one or more metal by-products. An apparatus for recovering metal values from molten slag includes a gas atomization apparatus, a flow control device for controlling the flow of atomizing gas, a control system, and one or more sensors to detect metal values in the slag.

公开(公告)号：US09791416B2

公开(公告)日：2017-10-17

申请号：US14081327

申请日：2013-11-15

申请人： Hatch Ltd.

发明人： Pawel Boleslaw Gebski ,  Afshin Sadri ,  Wai-Lai Ying

IPC分类号： G01N29/14 ,  G01N29/44 ,  F27B3/28 ,  F27D21/00

CPC分类号： G01N29/14 ,  F27B3/28 ,  F27D21/0021 ,  G01N29/4427

摘要： Various systems and method for acoustic monitoring of smelting furnaces and similar devices are disclosed. Acoustic sensors (and optionally other sensors) are mounted to the furnace. Acoustic emission events generated in the furnace are analyzed to identify conditions that exceed one or more thresholds. The location of acoustic emissions may be identified and reported. Output signals may be generated in response to acoustic emissions. The location of acoustic emissions may be used to identify the location of potential failures in the furnace.

公开(公告)号：US20170121595A1

公开(公告)日：2017-05-04

申请号：US15315766

申请日：2015-03-20

申请人： HATCH LTD.

发明人： Santiago Faucher ,  Lai Chi So

IPC分类号： C09K8/80 ,  B01J23/78 ,  C04B5/06 ,  C04B20/10 ,  C21B3/08 ,  C04B5/00

CPC分类号： C09K8/805 ,  B01J23/78 ,  C04B5/00 ,  C04B5/065 ,  C04B20/1029 ,  C04B2103/0062 ,  C04B2111/00586 ,  C04B2111/0081 ,  C09K8/80 ,  C21B3/08 ,  C22B7/04 ,  Y02P10/212 ,  Y02W30/94 ,  C04B18/141

摘要： A process for preparing solid slag granules from a molten slag composition comprises: (a) providing the molten slag composition; (b) converting the molten slag composition into the solid slag granules in a dispersion apparatus; and (c) sorting the solid slag granules by shape in a separator to produce a plurality of fractions having different sphericities. Granular slag products comprise one or more fractions of solid slag granules produced by the process, and include proppants, roofing granules, catalyst supports, which may be porous or non-porous, and coated or uncoated.

公开(公告)号：US20170120211A1

公开(公告)日：2017-05-04

申请号：US15317416

申请日：2015-05-08

申请人： HATCH LTD.

发明人： Kamal Adham ,  Christopher Thomas Harris ,  Alexandre Kokourine

IPC分类号： B01J8/24 ,  B01J8/22 ,  C22B1/10 ,  F26B3/084 ,  C10B49/10 ,  C10B53/02 ,  C10B57/12 ,  B01J8/18 ,  C02F3/30

CPC分类号： B01J8/24 ,  B01J8/1854 ,  B01J8/1872 ,  B01J8/20 ,  B01J8/226 ,  B01J8/26 ,  B01J8/34 ,  B01J2208/00752 ,  B01J2208/0084 ,  B01J2208/00893 ,  B01J2208/00938 ,  C02F3/301 ,  C10B49/10 ,  C10B53/02 ,  C10B57/12 ,  C22B1/10 ,  F26B3/084 ,  Y02E50/14

摘要： A reactor comprises an outer sidewall and a bottom wall enclosing a hollow chamber comprising a lower fluidized bed zone and an upper freeboard zone. A plurality of inlets is provided for injecting at least one fluidizing medium into the fluidized bed zone and creating a swirling flow. At least one feed inlet communicates with the fluidized bed zone; and at least one product outlet is provided for removing a product from the chamber, the outlet(s) communicating with either the fluidized bed zone or the freeboard zone. The reactor has at least one internal barrier located inside the hollow chamber, and at least partly located in the fluidized bed zone. The internal barrier(s) have at least one opening within the fluidized bed zone, such as an underflow opening, to permit internal recirculation of material from the product zone to the feed zone, thereby simplifying reactor structure.