4 results about "Atmospheric oxygen" patented technology

The invention relates to a method for removing atmospheric oxygen from a granular adsorber material (1) enriched with carbon dioxide, in particular in a DAC system (100; 100a), wherein the atmospheric oxygen is displaced from the adsorber material (1) by a medium that displaces the atmospheric oxygen.

This invention provides a method for recovering metallic copper by atmospheric pressure oxygen-enriched leaching, relating to the field of hydrometallurgy. The method includes: mixing copper sulfide concentrate with a sulfuric acid solution to obtain a mixed slurry; introducing an oxygen-rich gas under atmospheric pressure to carry out a leaching reaction; and after the reaction, separating the liquid and solid to obtain a copper-containing leachate. By using the synergistic leaching of sulfuric acid solution and oxygen-rich gas under atmospheric pressure, this method eliminates the reliance on expensive high-pressure equipment, removes the safety hazards of high-pressure explosions, and significantly reduces equipment corrosion and investment costs. Using oxygen as a highly efficient oxidant, this method significantly shortens the extraction cycle, overcomes the drawbacks of time-consuming bioleaching and the generation of waste, and achieves efficient, safe, and low-cost extraction of metallic copper from copper sulfide concentrate.

The invention relates to a method for removing atmospheric oxygen from a granular adsorber material (1) enriched with carbon dioxide, in particular in a DAC system (100; 100a), wherein the atmospheric oxygen is displaced from the adsorber material (1) by a medium that displaces the atmospheric oxygen.

The invention relates to a method for removing atmospheric oxygen from a granular adsorber material (1) enriched with carbon dioxide, in particular in a DAC plant (100; 100a), in which the atmospheric oxygen is displaced from the adsorber material (1) by a medium displacing the atmospheric oxygen.