公开(公告)号：US20110103998A1

公开(公告)日：2011-05-05

申请号：US12739767

申请日：2008-10-24

Applicant: Ivan Ratchev ,  Grant Caffery ,  Simon Philip Sullivan ,  René Ignacio Olivares ,  Gregory David Rigby

Inventor： Ivan Ratchev ,  Grant Caffery ,  Simon Philip Sullivan ,  René Ignacio Olivares ,  Gregory David Rigby

IPC: C22C19/03 ,  C01G53/11 ,  C09K3/00 ,  C22B23/00

CPC classification number: C22B23/06 ,  C22B23/023 ,  C22B23/025 ,  C22B23/0407 ,  C22B23/0461

Abstract: A method of producing a nickel product (including nickel alloy products and products such as nickel matte) from a nickel intermediate product is disclosed. The method comprises smelting a dried nickel intermediate product in a molten bath-based smelter and forming a molten pool containing a molten metal and a slag, with the molten metal being the nickel product. Intermediate and end products produced by the method are also disclosed.

Abstract translation: 公开了一种从镍中间产品生产镍产品（包括镍合金产品和诸如镍锍的产品）的方法。 该方法包括在熔融浴基冶炼炉中熔炼干燥的镍中间产物，并形成含有熔融金属和熔渣的熔池，熔融金属为镍产品。 还公开了通过该方法生产的中间产品和最终产品。

公开(公告)号：US07758740B2

公开(公告)日：2010-07-20

申请号：US10561597

申请日：2004-06-21

Applicant: Andrew Arthur Shook ,  Gregory David Rigby ,  Ivan Ratchev

Inventor： Andrew Arthur Shook ,  Gregory David Rigby ,  Ivan Ratchev

IPC: C25C3/00 ,  C25C7/00 ,  C25C7/02

CPC classification number: C25C7/007 ,  C22B1/2406 ,  C22B5/02 ,  C22B34/129 ,  C25C3/28 ,  C25C5/04 ,  C25C7/025

Abstract: An electrolytic cell for electrochemically reducing metal oxide powders and/or pellets is disclosed. The cell includes a cathode (25) in the form of a plate that has an upper surface for supporting metal oxide powders and/or pellets. The plate is horizontally disposed or slightly inclined and has a forward end and a rearward end and is immersed in an electrolyte bath. The plate is supported for movement so as to cause metal oxide powders and/or pellets on the upper surface of the plate to move toward a forward end of the plate. The cell also includes a means for causing metal oxide powders and/or pellets to move over the upper surface of the plate toward the forward end of the cathode while in contact with molten electrolyte whereby electrochemical reduction of the metal oxide to metal can occur. A method of continuously or semi-continuously reducing metal oxide powders and/or pellets in the cell is also disclosed.

Abstract translation: 公开了用于电化学还原金属氧化物粉末和/或丸粒的电解池。 电池包括板形式的阴极（25），其具有用于支撑金属氧化物粉末和/或颗粒的上表面。 该板水平放置或稍微倾斜，并具有前端和后端，并浸入电解液浴中。 支撑板移动，以使板的上表面上的金属氧化物粉末和/或颗粒向板的前端移动。 电池还包括使金属氧化物粉末和/或丸粒在与熔融电解液接触的同时朝向阴极的前端移动到板的上表面上的装置，由此可以发生金属氧化物到金属的电化学还原。 还公开了在电池中连续或半连续还原金属氧化物粉末和/或丸粒的方法。

公开(公告)号：US07470355B2

公开(公告)日：2008-12-30

申请号：US10490452

申请日：2003-12-12

Applicant: Steve Osborn ,  Ivan Ratchev ,  Les Strezov ,  Greg Rigby

Inventor： Steve Osborn ,  Ivan Ratchev ,  Les Strezov ,  Greg Rigby

IPC: C25C3/26

CPC classification number: C25C7/007 ,  C22B34/129 ,  C25C5/04 ,  C25C7/005

Abstract: A process for electrochemically reducing a metal oxide, such as titania, in a solid state in an electrochemical cell that includes a bath of molten electrolyte, a cathode, and an anode, which process includes the steps of: a) applying a cell potential across the anode and the cathode that is capable of electrochemically reducing the metal oxide supplied to the molten electrolyte bath, b) continuously or semi-continuously feeding the metal oxide in powder and/or pellet form into the molten electrolyte bath, c) transporting the powders and/or pellets along a path within the molten electrolyte bath and reducing the metal oxide as the metal oxide powders and/or pellets move along the path, and d) continuously or semi-continuously removing metal from the molten electrolyte bath. Also disclosed and claims is an electrochemical cell for carrying out this process.

Abstract translation: 一种用于电化学还原金属氧化物（例如二氧化钛）的方法，其在包括熔融电解质浴，阴极和阳极的电化学电池中的固体状态下，该方法包括以下步骤：a）跨越电池电位 阳极和阴极，其能够电化学还原提供给熔融电解质浴的金属氧化物，b）将粉末和/或颗粒形式的金属氧化物连续或半连续地供入到熔融电解质浴中，c）将粉末 和/或颗粒，并且随着金属氧化物粉末和/或颗粒沿着路径移动，还原金属氧化物，以及d）从熔融电解液浴中连续或半连续地除去金属。 还公开并且权利要求书是用于执行该方法的电化学电池。

公开(公告)号：US20080011126A1

公开(公告)日：2008-01-17

申请号：US11839876

申请日：2007-08-16

Applicant: Alexey Duarte ,  Houyuan Liu ,  Ivan Ratchev

Inventor： Alexey Duarte ,  Houyuan Liu ,  Ivan Ratchev

IPC: C22C38/08 ,  C21B15/00

CPC classification number: C21B15/00 ,  C22B1/244 ,  C22B3/42 ,  C22B5/12 ,  C22B23/023 ,  C22B23/0453 ,  Y02P10/234

Abstract: A process for producing a ferronickel product from a mixed nickel iron hydroxide product, said process including the steps of: providing a mixed nickel iron hydroxide product; pelletising the mixed nickel iron hydroxide product to produce nickel iron hydroxide pellets; calcining the nickel iron hydroxide pellets to produce mixed nickel iron oxide pellets; and reducing the nickel iron oxide pellets with one or more reducing gases at high temperatures to produce ferronickel pellets.

Abstract translation: 一种由混合的氢氧化镍氢产物生产镍铁产品的方法，所述方法包括以下步骤：提供混合的氢氧化镍氢氧化物产物; 将混合的镍氢氧化铁产物造粒以生产氢氧化镍氢氧化物颗粒; 煅烧镍氢氧化镍颗粒以制备混合的镍铁氧化物颗粒; 以及在高温下用一种或多种还原性气体还原镍铁氧化物颗粒以制备铁镍矿颗粒。

公开(公告)号：US20060037867A1

公开(公告)日：2006-02-23

申请号：US11258864

申请日：2005-10-27

Applicant: Les Strezov ,  Ivan Ratchev ,  Steve Osborn ,  Kannappar Mukunthan

Inventor： Les Strezov ,  Ivan Ratchev ,  Steve Osborn ,  Kannappar Mukunthan

IPC: C25C3/28 ,  C22B4/02

CPC classification number: C25C5/04 ,  C22B34/129 ,  C25C3/28

Abstract: A method of manufacturing titanium or titanium alloy semi-finished or ready-to-use products is disclosed. The method includes forming shaped bodies of titanium oxide particles and positioning the shaped bodies in an electrolytic cell which includes: an anode, a cathode, and a molten electrolyte. The shaped bodies are positioned to form at least a part of the cathode. The electrolyte includes cations of a metal that is capable of chemically reducing titanium oxide. The method further includes reducing the titanium oxide to titanium in a solid state in the electrolytic cell so that the shaped bodies become shaped bodies of titanium sponge. Finally, the method includes processing the shaped bodies of titanium sponge to reduce the volume or at least one of the dimensions of the bodies thereby to form the semi-finished or ready-to-use products.

Abstract translation: 公开了制造钛或钛合金半成品或即用型产品的方法。 该方法包括形成氧化钛颗粒的成形体并将成形体定位在包括阳极，阴极和熔融电解质的电解池中。 成形体被定位成形成阴极的至少一部分。 电解质包括能够化学还原氧化钛的金属的阳离子。 该方法还包括在电解槽中将钛氧化物还原成固态的钛，使成形体成为海绵钛成形体。 最后，该方法包括处理钛海绵体的成形体以减小体积或至少其中一个尺寸，从而形成半成品或即用型产品。

公开(公告)号：US20110120881A1

公开(公告)日：2011-05-26

申请号：US12961068

申请日：2010-12-06

Applicant: LES STREZOV ,  Ivan Ratchev ,  Steve Osborn

Inventor： LES STREZOV ,  Ivan Ratchev ,  Steve Osborn

IPC: C25C1/00

CPC classification number: C22B5/00 ,  C22B34/129

Abstract: A method of reducing a titanium oxide in a solid state in an electrolytic cell which includes an anode, a cathode formed at least in part from the titanium oxide, and a molten electrolyte which includes cations of a metal that is capable of chemically reducing the cathode titanium oxide, which method includes operating the cell at a potential that is above a potential at which cations of the metal that is capable of chemically reducing the cathode titanium oxide deposit as the metal on the cathode, whereby the metal chemically reduces the cathode titanium oxide, and which method is characterised by refreshing the electrolyte and/or changing the cell potential in later stages of the operation of the cell as required having regard to the reactions occurring in the cell and the concentration of oxygen in the titanium oxide in the cell in order to produce high purity titanium.

Abstract translation: 一种在电解槽中还原固体状态的氧化钛的方法，该方法包括阳极，至少部分由氧化钛形成的阴极，以及包含能够化学还原阴极的金属阳离子的熔融电解质 氧化钛，该方法包括以高于能够化学还原阴极氧化钛的金属的阳离子作为阴极上的金属沉积的电位的电位操作电池，由此金属化学还原阴极氧化钛 并且该方法的特征在于，考虑到细胞中发生的反应和细胞中的氧化钛中的氧浓度，根据需要刷新电解质的后期阶段和/或改变细胞电位 以生产高纯钛。

公开(公告)号：US07918985B2

公开(公告)日：2011-04-05

申请号：US10482055

申请日：2002-06-28

Applicant: Les Strezov ,  Ivan Ratchev ,  Steve Osborn

Inventor： Les Strezov ,  Ivan Ratchev ,  Steve Osborn

IPC: C25C3/28

CPC classification number: C22B5/00 ,  C22B34/129

Abstract: A method of reducing a titanium oxide in a solid state in an electrolytic cell which includes an anode, a cathode formed at least in part from the titanium oxide, and a molten electrolyte which includes cations of a metal that is capable of chemically reducing the cathode titanium oxide, which method includes operating the cell at a potential that is above a potential at which cations of the metal that is capable of chemically reducing the cathode titanium oxide deposit as the metal on the cathode, whereby the metal chemically reduces the cathode titanium oxide, and which method is characterized by refreshing the electrolyte and/or changing the cell potential in later stages of the operation of the cell as required having regard to the reactions occurring in the cell and the concentration of oxygen in the titanium oxide in the cell in order to produce high purity titanium.

Abstract translation: 一种在电解槽中还原固体状态的氧化钛的方法，该方法包括阳极，至少部分由氧化钛形成的阴极，以及包含能够化学还原阴极的金属阳离子的熔融电解质 氧化钛，该方法包括以高于能够化学还原阴极氧化钛的金属的阳离子作为阴极上的金属沉积的电位的电位操作电池，由此金属化学还原阴极氧化钛 并且该方法的特征在于，考虑到细胞中发生的反应和细胞中的氧化钛中的氧浓度，根据需要刷新电解质的后期阶段和/或改变细胞电位 以生产高纯钛。

公开(公告)号：US20070251833A1

公开(公告)日：2007-11-01

申请号：US11668507

申请日：2007-01-30

Applicant: Ivan Ratchev ,  Rene Olivares ,  Gregory Rigby ,  Sergey Bliznyukov

Inventor： Ivan Ratchev ,  Rene Olivares ,  Gregory Rigby ,  Sergey Bliznyukov

IPC: C02F1/461

CPC classification number: C22B34/1263 ,  C22B5/00 ,  C22B9/14 ,  C22B34/129 ,  C22B34/1295 ,  C25C3/00 ,  C25C7/06

Abstract: A process for minimising reoxidation of reduced material is disclosed. The process applies to reduced material that has been formed by a process of electrochemically reducing a metal oxide feed material, such as titania, in a solid state in an electrolytic cell containing a molten electrolyte. The process for minimising reoxidation includes applying an electrical potential to reduced material at least while the reduced material remains immersed in the molten electrolyte.

Abstract translation: 公开了一种使还原材料的再氧化最小化的方法。 该方法适用于通过在含有熔融电解质的电解槽中以固态电化学还原金属氧化物进料如二氧化钛的方法形成的还原材料。 最小化再氧化的方法包括至少在还原材料保持浸入熔融电解质中时将电势施加到还原材料上。

公开(公告)号：US20070181438A1

公开(公告)日：2007-08-09

申请号：US11615263

申请日：2006-12-22

Applicant: Rene Olivares ,  Ivan Ratchev ,  Gregory Rigby ,  Andrew Shook

Inventor： Rene Olivares ,  Ivan Ratchev ,  Gregory Rigby ,  Andrew Shook

IPC: C25C1/00

CPC classification number: C25C5/04 ,  C22B1/2406 ,  C22B5/02 ,  C22B34/129

Abstract: A metal oxide feed material for an electrochemical reduction process is disclosed. The feed material is in the form of powders and/or pellets that have sufficient porosity, typically 35-60%, to enable penetration of molten electrolyte into the powders and/or pellets during the course of an electrochemical reduction process in an electrolytic cell and subsequent washing of electrolyte from the powders and/or pellets after the powders and/or pellets are discharged from the cell. A process for preparing the metal oxide feed material is also disclosed.

Abstract translation: 公开了一种用于电化学还原过程的金属氧化物进料。 进料材料为粉末和/或丸粒的形式，其具有足够的孔隙率，通常为35-60％，以使得在电解池中电化学还原过程期间熔化的电解质能够渗透到粉末和/或颗粒中，以及 在粉末和/或丸粒从细胞中排出后，随后从粉末和/或丸粒中洗涤电解质。 还公开了制备金属氧化物进料的方法。

公开(公告)号：US20070131560A1

公开(公告)日：2007-06-14

申请号：US11522761

申请日：2006-09-18

Applicant: Ivan Ratchev ,  Rene Olivares ,  Andrew Shook ,  Gregory Rigby

Inventor： Ivan Ratchev ,  Rene Olivares ,  Andrew Shook ,  Gregory Rigby

IPC: C25C1/00 ,  C25C7/00

CPC classification number: C22B34/129 ,  C22B4/08 ,  C25C3/28 ,  C25C5/04

Abstract: A process for electrochemically reducing metal oxide feed material in a solid state is disclosed. The process includes the steps of agitating an electrolyte and metal oxide powders in the electrolyte and applying an electrical potential across a cathode in contact with the electrolyte and an anode and electrochemically reducing the metal oxides.

Abstract translation: 公开了一种电化学还原固态金属氧化物原料的方法。 该方法包括以下步骤：搅动电解质中的电解质和金属氧化物粉末，并将电位跨越与电解质和阳极接触的阴极并电化学还原金属氧化物。