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公开(公告)号：US11753732B2
公开(公告)日：2023-09-12
申请号：US17884198
申请日：2022-08-09
Applicant: ELECTRASTEEL, INC.
Inventor： Ai Quoc Pham , Sandeep Nijhawan , Adolfredo Alvarez , Steven Fatur
Abstract: Methods and systems for dissolving an iron-containing ore are disclosed. For example, a method of processing and dissolving an iron-containing ore comprises: thermally reducing one or more non-magnetite iron oxide materials in the iron-containing ore to form magnetite in the presence of a reductant, thereby forming thermally-reduced ore; and dissolving at least a portion of the thermally-reduced ore using an acid to form an acidic iron-salt solution; wherein the acidic iron-salt solution comprises protons electrochemically generated in an electrochemical cell.
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公开(公告)号：US11767604B2
公开(公告)日：2023-09-26
申请号：US17884260
申请日：2022-08-09
Applicant: ELECTRASTEEL, INC.
Inventor： Ai Quoc Pham , Sandeep Nijhawan , Adolfredo Alvarez , Colleen Wallace , Steven Fatur
Abstract: Methods and systems for producing are disclosed. A method for producing iron, for example, comprises: providing an iron-containing ore to a dissolution subsystem comprising a first electrochemical cell; wherein the first anolyte has a different composition than the first catholyte; dissolving at least a portion of the iron-containing ore using an acid to form an acidic iron-salt solution having dissolved first Fe3+ ions; providing at least a portion of the acidic iron-salt solution to the first cathodic chamber; first electrochemically reducing said first Fe3+ ions in the first catholyte to form Fe2+ ions; transferring the formed Fe2+ ions from the dissolution subsystem to an iron-plating subsystem having a second electrochemical cell; second electrochemically reducing a first portion of the transferred formed Fe2+ ions to Fe metal at a second cathode of the second electrochemical cell; and removing the Fe metal.
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公开(公告)号：US12065749B2
公开(公告)日：2024-08-20
申请号：US18226626
申请日：2023-07-26
Applicant: ELECTRASTEEL, INC.
Inventor： Ai Quoc Pham , Sandeep Nijhawan , Adolfredo Alvarez , Colleen Wallace , Steven Fatur
Abstract: Methods and systems for producing are disclosed. A method for producing iron, for example, comprises: providing an iron-containing ore to a dissolution subsystem comprising a first electrochemical cell; wherein the first anolyte has a different composition than the first catholyte; dissolving at least a portion of the iron-containing ore using an acid to form an acidic iron-salt solution having dissolved first Fe3+ ions; providing at least a portion of the acidic iron-salt solution to the first cathodic chamber; first electrochemically reducing said first Fe3+ ions in the first catholyte to form Fe2+ ions; transferring the formed Fe2+ ions from the dissolution subsystem to an iron-plating subsystem having a second electrochemical cell; second electrochemically reducing a first portion of the transferred formed Fe2+ ions to Fe metal at a second cathode of the second electrochemical cell; and removing the Fe metal.
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公开(公告)号：US12054837B2
公开(公告)日：2024-08-06
申请号：US18226604
申请日：2023-07-26
Applicant: ELECTRASTEEL, INC.
Inventor： Ai Quoc Pham , Sandeep Nijhawan , Adolfredo Alvarez , Steven Fatur
Abstract: Methods and systems for dissolving an iron-containing ore are disclosed. For example, a method of processing and dissolving an iron-containing ore comprises: thermally reducing one or more non-magnetite iron oxide materials in the iron-containing ore to form magnetite in the presence of a reductant, thereby forming thermally-reduced ore; and dissolving at least a portion of the thermally-reduced ore using an acid to form an acidic iron-salt solution; wherein the acidic iron-salt solution comprises protons electrochemically generated in an electrochemical cell.
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