Various embodiments include a system or platform that uses electrochemistry to upcycle waste products and low-value minerals into valuable, carbon dioxide (CO2)-neutral materials. Various embodiments may include systems and/or methods for processing material inputs using an electrochemical reactor. Various embodiments may include systems, methods, and/or devices for capturing and sequestering carbon dioxide (CO2) while producing valuable co-products.

Optimizing device for the electrodeposition of metals which covers the entire range of electrodeposition of metals from the lowest current densities to the highest, which has multiple openings on its entire surface which maximize the free passage of the electrolyte flow without altering the electrodeposition processes and straightening the electrodes causing an equidistribution of current in the electrodes installed in the cells which leads to the production of cathodes with high quality uniform deposits avoiding the loss of current due to short circuits that occur between anodes and cathodes, thereby increasing the current efficiency of the system. The device comprises a single body with a firm skeletal structure formed by different body sections, at least one body section comprising inclined side walls.

Optimizing device for the electrodeposition of metals which covers the entire range of electrodeposition of metals from the lowest current densities to the highest, which has multiple openings on its entire surface which maximize the free passage of the electrolyte flow without altering the electrodeposition processes and straightening the electrodes causing an equidistribution of current in the electrodes installed in the cells which leads to the production of cathodes with high quality uniform deposits avoiding the loss of current due to short circuits that occur between anodes and cathodes, thereby increasing the current efficiency of the system. The device comprises a single body with a firm skeletal structure formed by different body sections, at least one body section comprising inclined side walls.

A composition for suppressing generation of acid mist in an electrowinning process. The composition includes about 1.5% to about 20% (m/m) of a C.sub.2 to C.sub.6 organic acid, about 15% to about 35% (m/m) of a diphenyl oxide disulfonate or diphenyl oxide sulfonic acid compound; and about 20% to about 30% (m/m) of a plant root extract containing a triterpenoid saponin. Methods for preparing the composition and using the composition in an electrowinning process are also described.

A composition for suppressing generation of acid mist in an electrowinning process. The composition includes about 1.5% to about 20% (m/m) of a C.sub.2 to C.sub.6 organic acid, about 15% to about 35% (m/m) of a diphenyl oxide disulfonate or diphenyl oxide sulfonic acid compound; and about 20% to about 30% (m/m) of a plant root extract containing a triterpenoid saponin. Methods for preparing the composition and using the composition in an electrowinning process are also described.

The disclosure provides a method of producing hydrogen. The method comprises conducting a thermochemical reaction by contacting a metal, or an alloy thereof, with steam to produce a metal oxide and/or a metal hydroxide and hydrogen. The method then comprises contacting the metal oxide and/or the metal hydroxide produced in the thermochemical reaction with water or a basic aqueous solution to produce a solution comprising a metal ion. Finally, the method comprises conducting an electrochemical reaction by applying a voltage across an anode and a cathode, whereby at least a portion of the cathode contacts the solution comprising the metal ion, to produce hydrogen, oxygen and the metal, or the alloy thereof.

The present disclosure relates to an apparatus and method for selectively recovering target metals or minerals from a metal or mineral containing mixture/solution.

A silver ion sterilization solution preparation system includes a water inlet pretreatment system and a silver ion sterilization solution generation system. The water inlet pretreatment system includes a water inlet channel, a water outlet channel, and a filtering device. The water inlet channel is in communication with a raw water source. The filtering device is in communication with the water inlet channel and the water outlet channel to filter and treat the raw water source to generate filtered water. The silver ion sterilization solution generation system is used for reacting with the filtered water to generate silver ion sterilization solution. The silver ion sterilization solution generation system includes a silver ion generation water tank and a silver ion sterilization solution storage tank. The silver ion generation water tank is internally equipped with an electrolysis device. The electrolysis device includes a silver anode and a silver cathode.

A hydrometallurgical process for processing metal ore includes a dynamic oxidative step in which the ore is irrigated with specific reactive liquid mixtures at low flow rates to progressively transform the ore and maintain conditions for enhanced recovery of metal from the ore by solvent-extraction/electrowinning. In embodiments, the systems and methods described herein may be used for obtaining copper metal from the refractory copper mineral chalcopyrite. A copper heap subjected to the electrochemical regimes established and maintained in the heap using these methods exhibit novel kinetics.

Integrated systems may be characterized by: (a) an aluminum production subsystem comprising an aluminum-producing electrolysis cell configured to electrolytically produce aluminum metal from an aluminum compound; and (b) a carbon dioxide reduction subsystem comprising a carbon dioxide electrolyzer, where the carbon dioxide reduction subsystem is configured to receive carbon dioxide produced by the aluminum production subsystem and provide the carbon dioxide to the carbon dioxide electrolyzer for reduction to a carbon-containing product.