公开(公告)号：US12071676B2

公开(公告)日：2024-08-27

申请号：US16885510

申请日：2020-05-28

Applicant: Metso Minerals Industries, Inc.

Inventor： Jeffrey M. Pancher ,  Neil R. Dock ,  Brian Morgan ,  David Koerber ,  Andrew Wisner

IPC: C22B1/02 ,  F27B9/26 ,  F27D99/00

CPC classification number: C22B1/02 ,  F27B9/26 ,  F27D99/0076

Abstract: The disclosure relates to a machine for thermal treatment of bulk material, comprising: a stationary furnace which presents a support structure, and a plurality of pallet cars traveling through the furnace, said plurality of pallet cars together defining, at a lateral side thereof, a common engagement surface which extends through the furnace, wherein a gap is defined between the support structure of the furnace and the common engagement surface, said gap having a gap length, the machine further comprising: a sealing system comprising a series of leaf members which are partially overlapping, wherein each leaf member of the series of leaf members is connected to the support structure at a first end thereof, and self-biased into engagement with the engagement surface at a second, opposite, end thereof such that the series of leaf members, together, cover the gap over at least part of the gap length.

公开(公告)号：US20240158886A1

公开(公告)日：2024-05-16

申请号：US18552247

申请日：2021-05-13

Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

Inventor： Hitoshi TOYOTA ,  Tsugunori KATO ,  Rikizo TADAI

IPC: C22B1/24 ,  C22B1/02 ,  C22B1/16

CPC classification number: C22B1/2406 ,  C22B1/02 ,  C22B1/16

Abstract: A method for producing iron ore pellets for operation of a blast furnace, where the iron ore pellets have a CaO/SiO2 mass ratio greater than or equal to 0.8 and a MgO/SiO2 mass ratio greater than or equal to 0.4, the method including balling green pellets by adding water to an iron ore material and dolomite and firing the green pellets. The dolomite is in a miniaturized state in a structure of the green pellets.

公开(公告)号：US20240154197A1

公开(公告)日：2024-05-09

申请号：US18333643

申请日：2021-12-15

Applicant: SK INNOVATION CO., LTD.

Inventor： Hyeon Bae HA ,  Hyeon Jung KIM ,  Sang Ki KIM ,  Wan Gi KIM

IPC: H01M10/54 ,  C22B1/02 ,  C22B5/14 ,  C22B7/00 ,  C22B26/12

CPC classification number: H01M10/54 ,  C22B1/02 ,  C22B5/14 ,  C22B7/005 ,  C22B26/12

Abstract: In a method for recovering an active metal of a lithium secondary battery, positive electrode active material particles including a lithium-transition metal oxide is prepared. The positive active material particles are treated by reduction. The reduction-treated positive active particles are subjected to ultrasonic dispersion and hydration. The hydrated transition metal slurry is recovered. The recovery rate of lithium and transition metal can be increased by disaggregation through ultrasonic dispersion.

公开(公告)号：US20240055685A1

公开(公告)日：2024-02-15

申请号：US18277359

申请日：2022-02-07

Applicant: University of Kentucky Research Foundation

Inventor： Xin Gao ,  Kunlei Liu ,  Neng Huang

IPC: H01M10/54 ,  C22B26/12 ,  C22B1/02 ,  C22B7/00

CPC classification number: H01M10/54 ,  C22B26/12 ,  C22B1/02 ,  C22B7/005

Abstract: A method of recovering valuable materials from a black mass of lithium ion batteries may be broadly described as including the steps of decomposing the black mass to produce a reduced black mass, extracting lithium from the reduced black mass and separating and recovering magnetic alloy materials and non-magnetic materials from the reduced black mass. An apparatus for recovering valuable materials from a black mass of lithium ion batteries includes a thermal reactor, a stirring reactor, a solid-liquid separator, an oven and a magnet-assisted vibration device.

公开(公告)号：US20240035116A1

公开(公告)日：2024-02-01

申请号：US18260235

申请日：2022-06-06

Applicant: GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD. ,  HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD. ,  HUNAN BRUNP EV RECYCLING CO., LTD.

Inventor： Haijun YU ,  Yinghao XIE ,  Aixia LI ,  Xuemei ZHANG ,  Changdong LI

IPC: C22B3/00 ,  C22B23/00 ,  C22B1/02 ,  C22B7/00 ,  C22B7/04

CPC classification number: C22B23/0484 ,  C22B23/005 ,  C22B23/0446 ,  C22B23/0415 ,  C22B23/0461 ,  C22B1/02 ,  C22B7/007 ,  C22B7/008 ,  C22B7/005 ,  C22B7/04

Abstract: Disclosed in the present invention is a method for extracting valuable metal from low-matte nickel converter slag. The method comprises: mixing low-matte nickel converter slag and quicklime then calcinating, obtaining a calcinated material; grinding and magnetically separating the calcinated material, obtaining silicate and iron-rich slag; adding a strong alkali solution to the iron-rich slag to perform leaching processing, and performing solid-liquid separation, obtaining a filtrate and a residue; mixing the residue with an acid solution, performing oxygen pressure acid leaching, and performing solid-liquid separation, obtaining a leachate and iron oxide; introducing hydrogen sulfide gas into the leachate, adjusting the pH, and performing solid-liquid separation, obtaining a copper sulfide precipitate and a nickel-cobalt-containing filtrate. In the present invention, first, removing silicon dioxide is removed by means of calcination to prepare silicate, then iron oxide is prepared by means of acid leaching, and finally metal separation is performed on the leachate, causing various components of the converter slag to be effectively utilized. The process flow of the present invention is short and effectively utilizes each component of the low-matte nickel converter slag, waste is turned into valuable material, and the loss of valuable metal elements is reduced.

公开(公告)号：US20240021900A1

公开(公告)日：2024-01-18

申请号：US18222485

申请日：2023-07-17

Applicant: Robert Brian Huang ,  Richard Brian Huang

Inventor： Robert Brian Huang ,  Richard Brian Huang

IPC: H01M10/54 ,  H01M10/052 ,  C22B7/00 ,  C22B1/02

CPC classification number: H01M10/54 ,  H01M10/052 ,  C22B7/007 ,  C22B1/02

Abstract: This method recycles lithium iron phosphate batteries to extract cathode active materials, anode active materials, current collector metals, electrolyte, and separator materials in a highly pure state. The process involves the discharging and subsequent disassembly of used batteries into individual components—anode and cathode electrodes, electrolyte, separator, tape, and tabs, achieved via a brine bath, a dimethyl carbonate bath, and physical dismounting. Anode and cathode materials are then separated from their respective current collectors using specific solvent-cosolvent combinations, followed by purification procedures involving washing, heat treatment, and additional purification steps for the cathode. The process results in the extraction of highly pure battery materials including active anode and cathode materials, current collector metals, electrolyte, and separators. This approach obtains and purifies battery materials rather than base elemental compounds, thereby using few chemicals and having high reclamation efficiency, leading to enhanced recovery rates and high purity of resulting materials.

公开(公告)号：US20240018622A1

公开(公告)日：2024-01-18

申请号：US18041094

申请日：2021-07-26

Applicant: CALIX LTD

Inventor： Mark Geoffrey Sceats ,  Adam Vincent ,  Andrew Okely ,  Matthew Boot-Handford ,  Dabin Wang ,  Lakshmi Vazhapully ,  Terrance Banks

IPC: C22B1/02 ,  C22B26/12 ,  C22B1/26

CPC classification number: C22B1/02 ,  C22B26/12 ,  C22B1/26

Abstract: A method for heating a powder material to induce a crystalline phase change in the grains of the particle comprising the steps of: a. preheating the powder from the high temperature streams generated from cooling the phase changed product; b. injecting the powder into a metal tube; c. controlling the gas composition in the metal tube by injecting a gas into the reactor; d. externally heating the first section of the tube by a first furnace segment system; e. externally heating the second section of the tube by a second furnace segment system; f: quickly quenching the powder product temperature in a cold third segment of the tube; g. collecting the processed powder at the base of the tube in a bed ejecting the powder from the tube; h. cooling the powder in a heat exchanger and using the heat to preheat the powder in step a.

公开(公告)号：US20240006677A1

公开(公告)日：2024-01-04

申请号：US18254939

申请日：2021-11-30

Applicant: Alejandro F. GRAF ,  Eva L. KREPPS ,  Eric L. KREPPS ,  Erik FLEMING ,  REDIVIVUS, INC.

Inventor： Alejandro F. GRAF ,  Evan L. KREPPS ,  Eric L. KREPPS ,  Erik FLEMING

IPC: H01M10/54 ,  C22B1/02 ,  C22B7/00 ,  C22B15/00 ,  C22B3/22 ,  C22B3/42 ,  C22B23/00 ,  C22B1/26 ,  C22B3/00 ,  B09B3/35 ,  B09B3/40 ,  B09B3/80 ,  B09B3/70 ,  C25C1/24 ,  C25C1/12 ,  C25C1/08

CPC classification number: H01M10/54 ,  C22B1/02 ,  C22B7/007 ,  C22B7/005 ,  C22B15/0013 ,  C22B15/0067 ,  C22B15/0086 ,  C22B3/22 ,  C22B3/42 ,  C22B15/0089 ,  C22B23/005 ,  C22B1/26 ,  C22B23/0415 ,  C22B23/0461 ,  B09B3/35 ,  B09B3/40 ,  B09B3/80 ,  B09B3/70 ,  C25C1/24 ,  C25C1/12 ,  C25C1/08 ,  B09B2101/16

Abstract: The present disclosure provides methods and systems for recovering metals from lithium-ion batteries, and specifically to methods and systems for recovering cobalt and nickel jointly in metallic form via electrowinning processes. The present disclosure further provides methods and systems for preparing lithium-ion battery materials for use in metal recovery processes.

公开(公告)号：US20240003019A1

公开(公告)日：2024-01-04

申请号：US18213054

申请日：2023-06-22

Applicant: University of Kentucky Research Foundation

Inventor： Xin Gao ,  Ayokunle Omosebi ,  Aron Patrick ,  Kunlei Liu

IPC: C25B1/16 ,  C25B1/02 ,  C25B9/15 ,  C25B9/19 ,  C25B11/042 ,  H01M10/54 ,  C22B1/02 ,  C22B7/00

CPC classification number: C25B1/16 ,  C25B1/02 ,  C25B9/15 ,  C25B9/19 ,  C25B11/042 ,  H01M10/54 ,  C22B1/02 ,  C22B7/007

Abstract: A method of recycling lithium-ion batteries includes steps of: roasting black mass from lithium-ion batteries to produce a reduced black mass, conducting simultaneous aqueous leaching and wet magnetic separation of the reduced black mass for (a) extracting soluble lithium species and (b) enriching metallic Ni—Co and subjecting the extracted soluble lithium species to electrochemical lithium ion purification. A system for recycling lithium ion batteries includes a roaster, an aqueous leaching and wet magnetic separator and an electrochemical lithium ion separator.

公开(公告)号：US20230332270A1

公开(公告)日：2023-10-19

申请号：US18070242

申请日：2022-11-28

Applicant: BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY ,  INNER MONGOLIA RUIXIN CHEMICAL CO., LTD

Inventor： Junqing Pan ,  Qiuchen Wang ,  Keyu Wang ,  Yan Chen ,  Yanzhi Sun

IPC: C22B26/10 ,  C22B3/12 ,  C22B1/02 ,  C22B7/00

CPC classification number: C22B26/10 ,  C22B3/12 ,  C22B1/02 ,  C22B7/008

Abstract: The present disclosure relates to the field of non-ferrous metal and chemical industries for the production of metal sodium, and discloses a process for the preparation of high purity metallic sodium and the safe treatment of high calcium content sodium slag, the process comprises the following steps: (1) subjecting a liquid sodium obtained from electrolysis to a supergravity separation to obtain a high purity metallic sodium and a high calcium content sodium slag; (2) subjecting said high calcium content sodium slag to at least one roasting process to obtain a roasting slag; (3) leaching said roasting slag with an alkaline liquor to produce sodium hydroxide solution and calcium hydroxide. The process provided by the present disclosure not only greatly reduces the amount of generated sodium slag, but also implements the safe recovery of calcium and sodium resources from the sodium slag.