公开(公告)号：US20240240282A1

公开(公告)日：2024-07-18

申请号：US18415220

申请日：2024-01-17

申请人： Kunming University of Science and Technology ,  Jiangxi Blue Environmental Engrg Tech Co., Ltd. ,  Yunnan Blue Enviromental Engineering Tech Co., Ltd.

发明人： Xin SUN ,  Kai LI ,  Jie YANG ,  Yaqiong LUO ,  Xiaomei JIANG ,  Wanting ZHANG ,  Minghui HE ,  Xin TANG ,  Wenping QIAN

IPC分类号： C22B7/04 ,  C22B5/10

CPC分类号： C22B7/04 ,  C22B5/10

摘要： Provides is a method for denitration of carbothermally reduced iron-containing nonferrous metal smelting slag mixed with advanced oxidizer. In the method, the iron-containing smelting slag is subjected to carbothermal reduction, such that metals or metal oxides in the smelting slag are reduced and transformed into active catalysts which could activate hydrogen peroxide to generate free radicals. Hydrogen peroxide is catalytically decomposed, generating ·OH free radicals, and ·OH free radicals generated further oxidize NOx. The reactions are performed at ambient temperature

公开(公告)号：US20230227316A1

公开(公告)日：2023-07-20

申请号：US17999912

申请日：2021-05-26

申请人： BASF SE

发明人： Andreas Bode ,  Dieter Flick ,  Andreas Spiegel

IPC分类号： C01B32/40 ,  C01B3/24 ,  C01B3/34 ,  C01B32/05 ,  C01B32/942 ,  C01B32/97 ,  C01B33/025 ,  C01G45/02 ,  C01B25/02 ,  B01J19/24 ,  B01J6/00 ,  C07C1/04 ,  C22B5/10 ,  C22B25/02 ,  C22B34/32

CPC分类号： C01B32/40 ,  C01B3/24 ,  C01B3/34 ,  C01B32/05 ,  C01B32/942 ,  C01B32/97 ,  C01B33/025 ,  C01G45/02 ,  C01B25/02 ,  B01J19/245 ,  B01J6/008 ,  C07C1/0485 ,  C22B5/10 ,  C22B25/02 ,  C22B34/32 ,  C01B2203/0272 ,  C01B2203/0233 ,  C01B2203/062

摘要： A circular carbon process involves: a) reacting hydrogen and carbon monoxide to produce methane and water, b) decomposing methane into carbon and hydrogen, and c) using carbon as reducing agent and/or using carbon in a carbon-containing material as reducing agent, in a chemical process to produce carbon monoxide and a reduced substance. The methane produced in a) is used in b), the carbon produced in b) is used in c), and carbon monoxide produced in c) is used in a).

公开(公告)号：US11608543B2

公开(公告)日：2023-03-21

申请号：US16094493

申请日：2017-04-26

申请人： SUMITOMO METAL MINING CO., LTD.

发明人： Takashi Iseki ,  Yukihiro Goda ,  Jun-ichi Kobayashi ,  Shuji Okada

IPC分类号： C22B5/10 ,  C22B1/242 ,  C22B23/02 ,  C21B13/08 ,  C22B1/24 ,  C22C38/08

摘要： The present invention addresses the problem, in methods for producing a metal or alloy by reducing a mixture that contains an oxide ore, of providing an oxide ore smelting method with good productivity and efficiency. The present invention is an oxide ore smelting method for producing a metal or alloy by reducing a mixture that contains an oxide ore, the method comprising at least: a mixing step S1 for mixing an oxide ore with a carbonaceous reducing agent; a mixture-molding step S2 for molding the mixture obtained to obtain a mixture-molded body; and a reducing step S3 for heating the mixture-molded body obtained at a specified reducing temperature in a reducing furnace.

公开(公告)号：US11535910B2

公开(公告)日：2022-12-27

申请号：US16494567

申请日：2018-04-04

申请人： TNG LIMITED

发明人： Damian Edward Gerard Connelly ,  Denis Stephen Yan

IPC分类号： C22B5/10 ,  C22B3/10 ,  C22B34/22

摘要： A method (10) for preparing a leach feed material, the method (10) comprising the steps of: passing an ore or concentrate containing vanadium and iron to a reduction step (12) to form a reduced ore or concentrate; and passing the reduced ore or concentrate to a ferric leach step (14) to produce a ferric leachate containing iron and a ferric leach residue containing vanadium, wherein the ferric leach residue is suitable for use as the leach feed material for extracting and recovering vanadium.

公开(公告)号：US20210262067A1

公开(公告)日：2021-08-26

申请号：US17253718

申请日：2019-07-03

申请人： BOZEL BRASIL SA

发明人： Paulo VON KRUGER ,  Lupercio Tarcisio DE OLIVEIRA ,  Wilson Alves LAGE ,  Francisco Xavier DA SILVA NETO

IPC分类号： C22C30/00 ,  C22C24/00 ,  C22C21/02 ,  C22B5/10 ,  C22B5/04 ,  C21C7/06

摘要： A process for the production of calcium, aluminum, and silicon alloys is provided. The process includes the simultaneous carbothermal melting-reduction step of calcium, aluminum, and silicon.

公开(公告)号：US10894998B2

公开(公告)日：2021-01-19

申请号：US16096905

申请日：2017-04-26

申请人： MINTEK

发明人： Kabwika Bisaka ,  Itumeleng Thobadi

IPC分类号： C22B59/00 ,  C22B5/10 ,  C22B9/10

摘要： A method of processing an iron-rich rare earth bearing ore which includes the steps of smelting the ore to concentrate rare earth oxide minerals in the ore into a slag phase and extracting the rare earth oxide minerals from the slag.

公开(公告)号：US10829834B2

公开(公告)日：2020-11-10

申请号：US15741159

申请日：2016-03-04

申请人： The Regents of the University of Colorado, a body corporate

发明人： Alan W. Weimer ,  Aaron W. Palumbo ,  Illias Hischier ,  Arto J. Groehn ,  Boris A. Chubukov ,  Scott C. Rowe ,  Richard Fisher

IPC分类号： C22B5/10 ,  C22B5/16 ,  C22B9/04 ,  C22B21/02 ,  C22B26/22

摘要： Systems and methods for recovering material from a gas phase are provided. Exemplary systems include a moving bed of particles onto which material can be deposited. The systems can operate in a continuous or semi-continuous mode.

公开(公告)号：US10400309B2

公开(公告)日：2019-09-03

申请号：US14915573

申请日：2014-08-28

申请人： The Regents of the University of Colorado, a body corporate

发明人： Alan W. Weimer ,  Aaron Palumbo ,  Illias Hischier ,  Boris A. Chubukov ,  Scott C. Rowe ,  Richard Fisher ,  Arto J. Groehn

IPC分类号： C22B26/22 ,  C01B21/06 ,  C01B21/068 ,  C01B21/072 ,  C22B5/10 ,  C22B19/20 ,  B01D53/00 ,  C22B1/14 ,  C22B5/16

摘要： Methods, systems, and components suitable for carbothermal reduction processes are disclosed. Exemplary systems include a reactor, such as hybrid solarthermal-electric reactor, a solar thermal reactor, an electric reactor, or a reactor heated by gas combustion, a pellet source, a gas reactant source, and a vacuum source. The reactor can operate as a moving bed or pseudo moving bed reactor.

公开(公告)号：US20180030574A1

公开(公告)日：2018-02-01

申请号：US15552031

申请日：2015-12-01

申请人： SUMITOMO METAL MINING CO., LTD.

发明人： Junichi Takahashi ,  Taku Inoue ,  Shuuji Okada

IPC分类号： C22B23/02 ,  C22B1/16 ,  C21B13/10 ,  C22B5/10

CPC分类号： C22B23/023 ,  C21B13/10 ,  C22B1/16 ,  C22B5/10 ,  C22B23/02

摘要： Provided is a smelting method whereby a reaction for reducing pellets, said pellet being formed by using a saprolite ore as a starting material, can be effectively conducted and thus an iron/nickel alloy having a nickel grade of, for example, 16% or greater can be obtained. The method comprises: a pellet production step (S1) for producing the pellets from the saprolite ore; and a reduction step (S2) for heating and reducing the obtained pellets in a smelting furnace. In the pellet production step (S1), at least the saprolite ore and a preset amount of a carbonaceous reducing agent are mixed together to produce the pellets. In the reduction step (S2), a hearth carbonaceous reducing agent is preliminarily spread on the hearth of the smelting furnace and the pellets produced above are placed on the hearth carbonaceous reducing agent and then subjected to a heat reduction treatment.

公开(公告)号：US20170314861A1

公开(公告)日：2017-11-02

申请号：US15520211

申请日：2015-11-24

申请人： SGL CARBON SE

发明人： ALDRED EDLINGER ,  DANIEL STEPPICH

IPC分类号： F27D17/00 ,  F27B1/10 ,  F27B1/08 ,  C22B7/04 ,  C22B7/02 ,  F27D11/06 ,  C22B5/10

CPC分类号： F27D17/002 ,  C22B5/10 ,  C22B7/00 ,  C22B7/02 ,  C22B7/04 ,  F27B1/08 ,  F27B1/10 ,  F27D11/06 ,  Y02P10/212 ,  Y02P10/253

摘要： A method for reducing molten raw materials, includes placing the raw materials, in a solid or molten state, on an inductively heated bed with coke pieces. The reduced melt that runs off the coke bed is collected and the waste gases are discharged. A coke bed is inwardly limited by a tube-shaped element through which the reaction gases are drawn off via a plurality of draw-off openings in the tube-shaped element. The corresponding device has a reactor for a bed with coke pieces and an induction heater with at least one induction coil. The reactor has a loading opening and a discharge opening for the treated melt. The coke bed is ring-shaped around a tube-shaped element. The material of the tube-shaped element allows inductive coupling to the induction field of the induction coil and it has draw-off openings for drawing off reaction gases from the coke bed.