公开(公告)号：US20250059622A1

公开(公告)日：2025-02-20

申请号：US18233942

申请日：2023-08-15

Applicant: EnhancedGEO Holdings, LLC

Inventor： Greg Lindberg ,  Kimberly C. Conner

IPC: C22B19/02 ,  C22B1/10 ,  C22B1/24 ,  C22B19/34

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

公开(公告)号：US11649523B2

公开(公告)日：2023-05-16

申请号：US16490988

申请日：2017-06-02

Applicant: OUTOTEC (FINLAND) OY

Inventor： Jochen Güntner ,  Alexandros Charitos ,  Jörg Hammerschmidt

IPC: C22B11/00 ,  C22B1/10 ,  C22B1/24 ,  C22B11/02 ,  C22B15/00

CPC classification number: C22B11/04 ,  C22B1/10 ,  C22B1/2406 ,  C22B11/02 ,  C22B15/0013

Abstract: A process for roasting of metal concentrate wherein concentrate particles are fed into a roaster where they are thermally treated at a temperature in the range of 500 and 1200° C. in a fluidized bed to form a calcine. At least parts of the calcine are withdrawn from the roaster together with a gas stream as a solid fraction. Concentrate particles with a diameter at least 50% smaller than the average diameter of the concentrate particles are separated as small particles and/or particles from the gas-solid-fraction are separated in at least one step as small calcine particles and/or particles are gained in another hydrometallurgical step as other particles. Defined particles are pelletized, whereby at least 80% of the pellets feature a diameter of at least 80% of the concentrate particles average diameter. The pellets are fed into the roaster.

公开(公告)号：US20170120211A1

公开(公告)日：2017-05-04

申请号：US15317416

申请日：2015-05-08

Applicant: HATCH LTD.

Inventor： Kamal Adham ,  Christopher Thomas Harris ,  Alexandre Kokourine

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

CPC classification number: 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

Abstract: 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.

公开(公告)号：US09206493B2

公开(公告)日：2015-12-08

申请号：US13992376

申请日：2011-11-28

Applicant: Luis Alberto Aghemio Rodriguez

Inventor： Luis Alberto Aghemio Rodriguez

IPC: C25D3/38 ,  C25C1/12 ,  C22B3/16 ,  C22B15/00 ,  C22B1/10

CPC classification number: C22B15/0067 ,  C22B3/165 ,  C22B15/0063 ,  C25C1/12 ,  C25D3/38 ,  Y02P10/234 ,  Y02P10/236

Abstract: The invention relates to a method for leaching copper oxide without using sulfuric acid, comprising the following steps consisting in: impregnating the copper oxide using a non-polluting organic leaching agent consisting of an aqueous solution formed by tricarboxylic acid (C6H807) combined with water in a mixture having an acidity varying between a pH of 1 and 5; obtaining copper citrate; and, optionally, again irrigating the copper oxide impregnated with the non-polluting organic leaching agent, thereby obtaining a more concentrated copper citrate.

Abstract translation: 本发明涉及一种不使用硫酸浸出氧化铜的方法，包括以下步骤：使用由三羧酸（C6H807）与水组合形成的水溶液组成的无污染有机浸出剂浸渍氧化铜， 酸度在pH1和5之间变化的混合物; 获得柠檬酸铜; 并且可选地，再次冲洗浸渍有无污染有机浸出剂的氧化铜，从而获得更浓缩的柠檬酸铜。

公开(公告)号：US08052921B2

公开(公告)日：2011-11-08

申请号：US12158839

申请日：2006-12-26

Applicant: Myoung-Kyun Shin ,  Sang-Hyun Kim ,  Jun-Hyuk Lee ,  Kung-Won Nam

Inventor： Myoung-Kyun Shin ,  Sang-Hyun Kim ,  Jun-Hyuk Lee ,  Kung-Won Nam

IPC: C22B1/10

CPC classification number: C21B13/0073 ,  B01J8/0055 ,  B01J8/1818 ,  B01J8/1827 ,  B01J8/24 ,  B01J8/26 ,  B01J8/28 ,  B01J8/44 ,  B01J2208/00017 ,  B01J2208/00557 ,  B01J2208/00681 ,  B01J2219/0004 ,  C21B13/002 ,  C21B13/0033 ,  C21B13/143 ,  C21B2100/44 ,  F27B15/10

Abstract: An apparatus for manufacturing molten iron includes i) at least one fluidized-bed reduction reactor that reduces and plasticizes iron ore and converts the iron ore into reduced materials, ii) a melter-gasifier into which the reduced ore is charged and oxygen is injected, the melter-gasifier manufacturing molten iron, and iii) a reducing gas supply line that supplies a reducing gas discharged from the melter-gasifier to the fluidized-bed reduction reactor. The fluidized-bed reduction reactor includes a cyclone that is installed in the fluidized-bed reduction reactor to collect fine iron ore. A gas injector, which prevents the fine ore from adhering by injecting gas containing carbon, is connected to the cyclone.

Abstract translation: 一种用于制造铁水的设备包括：i）至少一个流化床还原反应器，其减少和塑化铁矿石并将铁矿石转化成还原材料，ii）熔化炉 - 气化炉，其中注入还原矿石和氧气， 所述熔化器 - 气化器制造铁水，以及iii）还原气体供应管线，其将从所述熔炉 - 气化器排出的还原气体供应到所述流化床还原反应器。 流化床还原反应器包括安装在流化床还原反应器中以收集细铁矿石的旋风分离器。 通过注入含有碳的气体来防止细矿石粘附的气体注入器连接到旋风分离器。

公开(公告)号：US20080277842A1

公开(公告)日：2008-11-13

申请号：US12158839

申请日：2006-12-26

Applicant: Myoung-Kyun Shin ,  Sang-Hyun Kim ,  Jun-Hyuk Lee ,  Kung-Won Nam

Inventor： Myoung-Kyun Shin ,  Sang-Hyun Kim ,  Jun-Hyuk Lee ,  Kung-Won Nam

IPC: C22B1/10

CPC classification number: C21B13/0073 ,  B01J8/0055 ,  B01J8/1818 ,  B01J8/1827 ,  B01J8/24 ,  B01J8/26 ,  B01J8/28 ,  B01J8/44 ,  B01J2208/00017 ,  B01J2208/00557 ,  B01J2208/00681 ,  B01J2219/0004 ,  C21B13/002 ,  C21B13/0033 ,  C21B13/143 ,  C21B2100/44 ,  F27B15/10

Abstract: An apparatus for manufacturing molten iron includes i) at least one fluidized-bed reduction reactor that reduces and plasticizes iron ore and converts the iron ore into reduced materials, ii) a melter-gasifier into which the reduced ore is charged and oxygen is injected, the melter-gasifier manufacturing molten iron, and iii) a reducing gas supply line that supplies a reducing gas discharged from the melter-gasifier to the fluidized-bed reduction reactor. The fluidized-bed reduction reactor includes a cyclone that is installed in the fluidized-bed reduction reactor to collect fine iron ore. A gas injector, which prevents the fine ore from adhering by injecting gas containing carbon, is connected to the cyclone.

Abstract translation: 一种用于制造铁水的设备包括：i）至少一个流化床还原反应器，其减少和塑化铁矿石并将铁矿石转化成还原材料，ii）熔化炉 - 气化炉，其中注入还原矿石并注入氧气， 所述熔化器 - 气化器制造铁水，以及iii）还原气体供应管线，其将从所述熔炉 - 气化器排出的还原气体供应到所述流化床还原反应器。 流化床还原反应器包括安装在流化床还原反应器中以收集细铁矿石的旋风分离器。 通过注入含有碳的气体来防止细矿石附着的气体喷射器与旋风分离器连接。

公开(公告)号：US07264765B2

公开(公告)日：2007-09-04

申请号：US10491293

申请日：2002-10-11

Applicant: Katsutoshi Ono ,  Ryosuke Suzuki

Inventor： Katsutoshi Ono ,  Ryosuke Suzuki

IPC: C22B1/10

CPC classification number: C22B34/1268 ,  C22B34/129 ,  C22B34/1295 ,  C25C3/02 ,  C25C3/28

Abstract: This invention relates to a method and an apparatus for smelting titanium metal by the thermal reduction of titanium oxide (TiO2) to titanium metal (Ti); a mixed salt of calcium chloride (CaCl2) and calcium oxide (CaO) contained in a reaction vessel is heated to form a molten salt which constitutes a reaction region, the molten salt in the reaction region is electrolyzed thereby converting the molten salt into a strongly reducing molten salt containing monovalent calcium ions (Ca+) and/or calcium (Ca), titanium oxide is supplied to the strongly reducing molten salt and the titanium oxide is reduced and the resulting titanium metal is deoxidized by the monovalent calcium ions and/or calcium. The method and the apparatus make it feasible to produce commercially titanium metal suitable for a variety of applications from titanium oxide.

Abstract translation: 本发明涉及一种通过将钛氧化物（TiO 2）热还原成钛金属（Ti）而熔化钛金属的方法和装置。 将包含在反应容器中的氯化钙（CaCl 2/2）和氧化钙（CaO）的混合盐加热以形成构成反应区域的熔融盐，将反应区域中的熔融盐电解 从而将熔融盐转化为含有一价钙离子（Ca +）和/或钙（Ca）的强还原熔融盐，将氧化钛供给强还原性熔融盐，氧化钛还原 并且所得到的钛金属被一价钙离子和/或钙脱氧。 该方法和设备使得可以生产适合于二氧化钛各种应用的市售钛金属。

公开(公告)号：US5804150A

公开(公告)日：1998-09-08

申请号：US805409

申请日：1997-02-24

Applicant: Michael Tacke ,  Walter Pierson ,  Eberhard Stolarski

Inventor： Michael Tacke ,  Walter Pierson ,  Eberhard Stolarski

IPC: C22B1/02 ,  C22B1/10 ,  C22B11/00 ,  C22B1/00 ,  C22B3/00

CPC classification number: C22B11/04 ,  C22B1/02

Abstract: The ore which contains gold and at least one of the metals silver, copper, nickel, zinc or iron is calcined at temperatures in the range from 500.degree. to 900.degree. C. with the addition of oxygen-containing gas, thereby producing a metal-oxide-containing solids mixture and a SO.sub.2 -containing exhaust gas. The SO.sub.2 containing exhaust gas is brought in contact with aqueous solution, thereby producing a sulfite-containing solution. The solids mixture from the calcination is cooled to temperatures in the range from 50.degree. to 300.degree. C. and is stirred up with the sulfite-containing solution. Metal oxides are dissolved, and a sulfate-containing solution os formed. In a first separating zone, the sulfate-containing solution is separated from the solids, and either the solids are supplied to a gold leaching or the sulfate-containing solution is subjected to a further treatment for the separation of nonferrous metals.

Abstract translation: 含有金和银，铜，镍，锌或铁中的至少一种金属的矿石在加入含氧气体的同时在500-900℃的温度下煅烧， 含氧化物的固体混合物和含SO 2的废气。 使含SO 2的废气与水溶液接触，从而产生含亚硫酸盐的溶液。 将来自煅烧的固体混合物冷却至50℃至300℃的温度，并与含亚硫酸盐的溶液一起搅拌。 溶解金属氧化物，形成含硫酸盐溶液。 在第一分离区中，将含硫酸盐的溶液与固体分离，并将固体供应至金浸出，或者将含硫酸盐溶液进一步处理以分离有色金属。

公开(公告)号：US5380504A

公开(公告)日：1995-01-10

申请号：US51711

申请日：1993-04-23

Applicant: William E. Lindquist ,  Brian T. Field ,  Bernard T. McCormick

Inventor： William E. Lindquist ,  Brian T. Field ,  Bernard T. McCormick

IPC: C22B1/04 ,  C22B1/10 ,  C22B11/02

CPC classification number: C22B1/04 ,  C22B1/10

Abstract: The present invention relates to a process for roasting gold containing ore in which a flash furnace means is provided, in particular a gas suspension furnace for roasting the ore. Hot gas and the gold containing ore to be roasted are supplied to the furnace means, wherein the hot gas roasts the ore within the furnace means at temperatures between about 500.degree. C. and 700.degree. C. while the ore is suspended in the hot gas, after which the roasted ore is discharged from the furnace means along with the hot gas. In the apparatus of the present the ore to be calcined may optionally be preheated, prior to the ore entering the furnace means, by suspending the fresh ore in hot gas.

Abstract translation: 本发明涉及一种焙烧包含闪蒸炉装置的含金矿石的方法，特别是用于焙烧矿石的气体悬浮炉。 将热气体和含有金的矿石供应到炉子装置，其中热气体在炉装置内在约500℃至700℃之间的温度下焙烧矿石，同时将矿石悬浮在热气体中 然后将焙烧的矿石与热气体一起从炉装置排出。 在本发明的装置中，待煅烧的矿石可以在矿石进入炉装置之前通过将新鲜矿石悬浮在热气中来预选。

公开(公告)号：US5324009A

公开(公告)日：1994-06-28

申请号：US960830

申请日：1992-10-14

Applicant: Willard E. Kemp

Inventor： Willard E. Kemp

IPC: C21D1/53 ,  C21D1/62 ,  C23C8/10 ,  C23C8/24 ,  C23C8/28 ,  C22B1/10

CPC classification number: C21D1/53 ,  C21D1/62 ,  C23C8/10 ,  C23C8/24 ,  C23C8/28

Abstract: A process and apparatus for forming a hardened outer shell (40) on a refractory metal workpiece (36) preferably heated in a fluidized bed of metallic oxide particles (38) in an environment of an inert gas and a reactive gas with the reactive gas either oxygen or nitrogen. The workpieces (36) are heated in the fluidized bed to a temperature between 800 F. and 1600 F. for a period of over two hours to form hardened outer shell (40) in two layers (42, 44). Outer layer (42) is an oxide or nitride layer having a thickness (T1) between 10 microns and 25 microns. Inner layer (44) is a case hardened layer of the refractory metal having a thickness (T2) between 25 microns and 75 microns. In one embodiment workpieces (56) may be cold worked by peening from finely divided metal oxide particles (54) to provide a uniform surface texture for subsequent hardening.

Abstract translation: 一种用于在耐火金属工件（36）上形成硬化的外壳（40）的方法和装置，优选在惰性气体和与反应气体的反应气体的环境中在金属氧化物颗粒（38）的流化床中加热， 氧气或氮气。 将工件（36）在流化床中加热到800°F和1600°F之间的温度两个多小时，以形成两层（42,44）中的硬化外壳（40）。 外层（42）是厚度（T1）在10微米和25微米之间的氧化物或氮化物层。 内层（44）是具有25微米至75微米的厚度（T2）的难熔金属的外壳硬化层。 在一个实施例中，工件（56）可以通过从细碎的金属氧化物颗粒（54）喷丸而进行冷加工，以提供用于后续硬化的均匀的表面纹理。