Power is provided to an electrochemical cell. The electrochemical cell includes an anode side and a cathode side. Hydrogen sulfide in a liquid state is flowed to the anode side. An operating temperature and an operating pressure are maintained within the anode side, such that the hydrogen sulfide in the anode side is at a supercritical state. Providing power to the electrochemical cell facilitates electrolysis of the hydrogen sulfide to produce sulfur and protons on the anode side. Providing power to the electrochemical cell facilitates reduction of protons to produce hydrogen on the cathode side. A membrane separating the anode side from the cathode side prevents flow of hydrogen sulfide and sulfur from passing through the membrane while allowing hydrogen cations to pass through the membrane. Sulfur is flowed out of the anode side. Hydrogen is flowed out of the cathode side.

Power is provided to an electrochemical cell. The electrochemical cell includes an anode side and a cathode side. Hydrogen sulfide in a liquid state is flowed to the anode side. Providing power to the electrochemical cell facilitates electrolysis of the hydrogen sulfide to produce sulfur and protons on the anode side. Providing power to the electrochemical cell facilitates reduction of protons to produce hydrogen on the cathode side. A membrane separating the anode side from the cathode side prevents flow of hydrogen sulfide and sulfur from passing through the membrane while allowing hydrogen cations to pass through the membrane. Sulfur is flowed out of the anode side. Hydrogen is flowed out of the cathode side.

Power is provided to an electrochemical cell. The electrochemical cell includes an anode side and a cathode side. A solution is flowed to the anode side. The solution includes hydrogen sulfide dissolved in water. Water is flowed to the cathode side. The water flowed to the cathode side can be in the form of steam. Providing power to the electrochemical cell facilitates production of sulfur dioxide on the anode side. Providing power to the electrochemical cell facilitates production of hydrogen on the cathode side. A membrane separating the anode side from the cathode side prevents flow of hydrogen sulfide, water, and sulfur dioxide from passing through the membrane while allowing hydrogen cations and oxygen anions to pass through the membrane. Sulfur dioxide is flowed out of the anode side. Hydrogen is flowed out of the cathode side.

The present invention relates to a manufacturing apparatus and method for customizing a H.sub.2/CO synthetic gas in a desired ratio by producing a synthetic gas in which H.sub.2 and CO are mixed through hydrolysis of both carbon dioxide and a nitrogen compound with low power. In a low-power electrochemical apparatus for producing a synthetic gas according to the present invention, by performing the reduction of the carbon dioxide at the cathode and the oxidation of the nitrogen compound at the anode at the same time, carbon dioxide conversion efficiency may be improved 30% or more compared to the conventional carbon dioxide conversion system, and a synthetic gas with a desired H.sub.2/CO ratio may be produced by controlling the H.sub.2/CO ratio of the produced synthetic gas, and by reducing a driving voltage, the corrosion problem of electrode materials may be inhibited and the durability of electrodes may be increased.

A method for separating elemental phosphorus from iron oxide-containing and phosphate-containing materials includes at least the following steps: providing at least one iron oxide-containing and phosphate-containing material, adding at least one aluminum carrier to the at least one iron oxide-containing and phosphate-containing material and melting the at least one aluminum carrier together with the at least one iron oxide-containing and phosphate-containing material to form an aluminum-containing and optionally aluminum oxide-containing phosphate slag melt, reacting the aluminum-containing and optionally aluminum oxide-containing phosphate slag melt to elemental, gaseous phosphorus, iron and Al.sub.2O.sub.3-containing slag in a melting vessel, withdrawing the elemental, gaseous phosphorus and tapping off the iron and the Al.sub.2O.sub.3-containing slag.

A method for separating elemental phosphorus from iron oxide-containing and phosphate-containing materials includes at least the following steps: providing at least one iron oxide-containing and phosphate-containing material, adding at least one aluminum carrier to the at least one iron oxide-containing and phosphate-containing material and melting the at least one aluminum carrier together with the at least one iron oxide-containing and phosphate-containing material to form an aluminum-containing and optionally aluminum oxide-containing phosphate slag melt, reacting the aluminum-containing and optionally aluminum oxide-containing phosphate slag melt to elemental, gaseous phosphorus, iron and Al.sub.2O.sub.3-containing slag in a melting vessel, withdrawing the elemental, gaseous phosphorus and tapping off the iron and the Al.sub.2O.sub.3-containing slag.

Methods and systems for degradation of polymeric and non-polymeric substances is provided. An example method includes generating structurally altered gas molecules from water, where the structurally altered gas molecules have a higher probability of attraction of electrons into areas adjunct to the structurally altered gas molecules than molecules of the water. The method further includes infusing the structurally altered gas molecules into a matter containing the polymeric substances and the non-polymeric substances, where upon being infused, the structurally altered gas molecules cause a decrease in concentration of the polymeric substances and the non-polymeric substances in the matter.

Methods and systems for degradation of polymeric and non-polymeric substances is provided. An example method includes generating structurally altered gas molecules from water, where the structurally altered gas molecules have a higher probability of attraction of electrons into areas adjunct to the structurally altered gas molecules than molecules of the water. The method further includes infusing the structurally altered gas molecules into a matter containing the polymeric substances and the non-polymeric substances, where upon being infused, the structurally altered gas molecules cause a decrease in concentration of the polymeric substances and the non-polymeric substances in the matter.

Methods and systems for producing iron from an iron-containing ore and removing impurities found in the iron-containing ore are disclosed. For example, a method for producing iron comprises providing a feedstock having an iron-containing ore and one or more impurities to a dissolution subsystem comprising a first electrochemical cell; producing an iron-rich solution, in the dissolution subsystem; treating the iron-rich solution to remove at least a portion of one or more impurities by raising a pH of the iron-rich solution from an initial pH to an adjusted pH thereby precipitating at least a portion of the one or more impurities in the treated iron-rich solution; delivering the treated iron-rich solution to an iron-plating subsystem having a second electrochemical cell; second electrochemically reducing at least a first portion of the transferred formed Fe.sup.2+ ions to Fe metal; and removing the Fe metal from the second electrochemical cell thereby producing iron.

A geomimetic process of sulfate replacement by mineralized carbonate, either in situ or ex situ, is used for mineral carbon sequestration and critical element recovery.