公开(公告)号：US20240327949A1

公开(公告)日：2024-10-03

申请号：US18130234

申请日：2023-04-03

Applicant: EnhancedGEO Holdings, LLC

Inventor： Greg Lindberg ,  Kimberly C. Conner

IPC: C22B21/02 ,  B22D21/00 ,  C22B1/24 ,  C22B3/06 ,  C22B3/22 ,  C22B5/02 ,  C22B34/12 ,  C22B59/00 ,  C25C3/06 ,  F03G4/00 ,  F24T10/10 ,  F24V50/00

CPC classification number: C22B21/02 ,  B22D21/007 ,  C22B1/24 ,  C22B3/06 ,  C22B3/22 ,  C22B5/02 ,  C22B34/124 ,  C22B59/00 ,  C25C3/06 ,  F03G4/00 ,  F24T10/10 ,  F24V50/00

Abstract: A geothermally powered aluminum production subsystem includes a geothermal system with a wellbore extending from a surface into an underground magma reservoir. A hopper receives a bauxite ore that is crushed and provided to a digestor. The digestor is heated by a heat transfer fluid heated by the geothermal system, and a product of the digestor is used to prepare aluminum.

公开(公告)号：US20240229189A9

公开(公告)日：2024-07-11

申请号：US18400413

申请日：2023-12-29

Applicant: Coogee Titanium Pty Ltd

Inventor： Daniel Jewell ,  Peter Duxson

IPC: C22B5/04 ,  B22F1/05 ,  C22B9/02 ,  C22B9/04 ,  C22B21/00 ,  C22B21/02 ,  C22B34/12 ,  C22B34/22

CPC classification number: C22B5/04 ,  B22F1/05 ,  C22B9/02 ,  C22B9/04 ,  C22B21/00 ,  C22B21/02 ,  C22B34/12 ,  C22B34/1268 ,  C22B34/22 ,  B22F2301/205 ,  B22F2304/10 ,  Y02P10/20

Abstract: The invention provides a method for the recovery of a metal-containing product (MProd) comprising: providing a composite material comprising a matrix of oxidised reductant (Ro), a product metal (MP) dispersed in the matrix of oxidised reductant (Ro), and one or more metal compounds (MPCR) of the product metal (MP) in one or more oxidation states dispersed in the matrix of oxidised reductant (Ro); and treating the composite material to at least partially remove the one or more metal compounds (MPCR) from the matrix of oxidised reductant (Ro) to form the metal-containing product (MProd).

公开(公告)号：US11932920B2

公开(公告)日：2024-03-19

申请号：US17615922

申请日：2020-06-03

Applicant: CONSTELLIUM ISSOIRE

Inventor： Jocelyn Prigent ,  Philippe Jarry ,  Pierre Le Brun

IPC: C22B34/12 ,  C21C7/072 ,  C22B9/05 ,  C22B21/06

CPC classification number: C22B34/1295 ,  C21C7/072 ,  C22B9/05 ,  C22B21/064

Abstract: Liquid metal degassing device comprising a chamber containing a liquid metal bath, a device for circulating a gas through a purification chamber and in that the purification chamber comprises a getter material configured to trap dihydrogen from the circulating gas. Method for degassing a liquid metal bath to reduce the hydrogen concentration of the liquid metal comprising the following steps



a) Preparing a liquid metal bath, preferably an aluminum alloy
b) Circulating a gas,
c) Exchanging hydrogen from the circulating gas with the liquid metal such that the hydrogen dissolved in the liquid metal bath diffuses into the circulating gas and enriches the circulating gas with dihydrogen,
d) Purifying the circulating gas enriched with dihydrogen in a purification chamber comprising a getter material configured to trap dihydrogen from the circulating gas.

公开(公告)号：US20230220516A1

公开(公告)日：2023-07-13

申请号：US17927232

申请日：2021-05-18

Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION

Inventor： Goutam Kumar DAS

IPC: C22B34/12 ,  C22B3/22 ,  C22B3/42 ,  C22B21/00 ,  C22B34/22 ,  C22B3/10 ,  C22B26/22 ,  C22B47/00 ,  C22B3/44

CPC classification number: C22B34/1245 ,  C22B3/22 ,  C22B3/42 ,  C22B21/0015 ,  C22B34/22 ,  C22B3/10 ,  C22B26/22 ,  C22B47/00 ,  C22B3/44

Abstract: A process for recovering titanium dioxide from a titanium-bearing material, the process including the steps of: leaching the titanium-bearing material in a first leaching step at atmospheric pressure and at a temperature of 70 to 97° C. with a first lixiviant to produce a first leach solution comprising undissolved first leach solids that include a titanium content and a first leach liquor, the first lixiviant comprising hydrochloric acid at a concentration of less than 23% w/w; separating the first leach liquor and the undissolved first leach solids; leaching the first leach solids in a second leaching step at atmospheric pressure and at a temperature of 60 to 80° C. with a second lixiviant in the presence of a Fe powder reductant to produce a second leach solution comprising undissolved second each solids and a second leach liquor that includes a leached titanium content and iron content, the second lixiviant comprising a mixed chloride solution comprising less than 23% w/w hydrochloric acid and an additional chloride selected from alkali metal chlorides, magnesium chloride and calcium chloride, or mixtures thereof; separating the second leach liquor and the undissolved second leach solids; and thereafter separating the titanium dioxide and the iron content from the second leach liquor by precipitation, and regenerating the second lixiviant for recycle to the second leaching step.

公开(公告)号：US20230125127A1

公开(公告)日：2023-04-27

申请号：US18087718

申请日：2022-12-22

Applicant: KYOTO UNIVERSITY ,  IHI CORPORATION

Inventor： Tetsuya UDA ,  Yoshinobu KUNITOMO ,  Akihiro KISHIMOTO ,  Kazuhiro KUMAMOTO ,  Akihiro SATO ,  Yasushi DODO ,  Takuya HASHIMOTO ,  Akihiko YOSHIMURA

IPC: C22B34/12

Abstract: A metal titanium production apparatus includes: a reductor that subjects titanium tetrachloride to a reduction process in presence of bismuth and magnesium to obtain a liquid alloy containing titanium and the bismuth; a segregator that subjects the liquid alloy to a segregation process to obtain a precipitate; and a distillator that subjects the precipitate to a distillation process to obtain metal titanium, and the distillator sets an atmosphere so as to preferentially vaporize the bismuth attached to the precipitate and then sets the atmosphere so as to vaporize the bismuth forming the precipitate.

公开(公告)号：US20220356543A1

公开(公告)日：2022-11-10

申请号：US17740091

申请日：2022-06-30

Applicant: University of Science and Technology Beijing

Inventor： Baijun YAN ,  Zihui DONG ,  Jie ZHANG

IPC: C22B7/04 ,  C22B7/00 ,  C22B34/32 ,  C22B34/22 ,  C22B34/12

Abstract: The present disclosure provides a method for co-extraction of vanadium, titanium and chromium from vanadium slag. The method selectively reduces pyroxene and fayalite wrapped on spinel through low-temperature hydrogen reduction, iron removal by ferric chloride, and low-temperature leaching of the vanadium slag by oxalic acid, thereby destroying a structure of the spinel, dissociating a spinel phase and a silicate phase, and fully exposing the spinel phase. The method also directly leaches the vanadium slag at a low temperature by acidity and strong complexation of the oxalic acid, and destroys the structure of the spinel, such that vanadium, titanium, chromium and oxalate are complexed into a solution to co-extract vanadium, titanium and chromium. The present disclosure extracts vanadium, titanium and chromium from the vanadium slag, with a leaching rate each being greater than 99%.

公开(公告)号：US11125504B2

公开(公告)日：2021-09-21

申请号：US16205154

申请日：2018-11-29

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Byung Moon Moon ,  Hyun Jae Lee ,  Hyun Do Jung

IPC: H05B6/22 ,  F27B14/06 ,  C22B34/12 ,  C22B9/00 ,  H05B6/24 ,  C30B15/10

Abstract: A cold crucible structure according to an embodiment of the present invention includes a cold crucible structure according to an embodiment of the present invention includes: a cold crucible unit including hollow top and bottom caps, a plurality of segments connecting the top cap and the bottom cap, slits disposed between the segments, and a reaction area surrounded by the segments; and an induction coil unit disposed to cover the outer side of the cold crucible unit and disposed across the longitudinal directions of the segments and the slits, in which the diameter of the reaction area is defined as a crucible diameter, the crucible diameter is 100 to 300 mm, and a width of each of the slits is defined by d slit ≤ 0.3 × ∅ 50 (mm)(where dslit is the width of each of the slits and Ø is the crucible diameter).

公开(公告)号：US20210230714A1

公开(公告)日：2021-07-29

申请号：US17181325

申请日：2021-02-22

Applicant: Improbed AB

Inventor： Bengt-Ake Andersson ,  Fredrik Lind ,  Henrik Thunman

IPC: C22B34/12 ,  F23C10/18

Abstract: The invention relates to a method for starting up a fluidized bed boiler, such as a circulating fluidized bed (CFB) or a bubbling fluidized bed (BFB) boiler, for operation with a predetermined concentration of ilmenite particles in the bed material. The invention also relates to a method for pre-oxidizing ilmenite, to pre-oxidized ilmenite and to the use of pre-oxidized ilmenite in a fluidized bed boiler.

公开(公告)号：US10954584B2

公开(公告)日：2021-03-23

申请号：US16207440

申请日：2018-12-03

Applicant: PHINERGY LTD

Inventor： Ernst Khasin

IPC: C01G23/04 ,  C22B34/12 ,  C22F1/16 ,  C22C22/00 ,  C22C1/02 ,  C22B47/00 ,  C22B7/00 ,  C01G23/053 ,  C01G1/02 ,  C01B13/32

Abstract: Methods of producing high purity powders of submicron particles of metal oxides are presented. The methods comprise providing or forming an alloy of a first metal with a second metal, optionally heating the alloy, subjecting the alloy to a leaching agent to remove the second metal from the alloy and to oxidize the first metal, thus forming submicron oxide particles of the first metal. Collections of high purity, high surface area, submicron particles are presented as well.

公开(公告)号：US20210008568A1

公开(公告)日：2021-01-14

申请号：US16483355

申请日：2019-02-21

Applicant: METALDO CO., LTD.

Inventor： Shingo NOMURA ,  Keigo KOBAYASHI ,  Kazumi TAKENAKA

IPC: B02C23/14 ,  B08B15/02 ,  C22B1/248 ,  C22B1/00 ,  C22B34/12 ,  B03C1/30 ,  B09B5/00 ,  B02C21/00 ,  B07B1/36

Abstract: A method of producing titanium cobbles includes: a preparation step of preparing a scrap material containing 50% by mass or more of metal titanium; a first crushing step of roughly crushing the scrap material using a first crusher; a second crushing step of crushing the scrap material, which has been roughly crushed in the first crushing step, using a second crusher; a dust collection step of collecting fine dust of the scrap material generated in the second crushing step; and a first classification step of classifying products obtained by crushing the scrap material, which have been generated in the second crushing step, into medium particles with particle sizes within a predetermined particle size range, large particles with particle sizes larger than the particle size range, and small particles with particle sizes smaller than the particle size range.