A fully automatic gold refining machine is a complex piece of equipment that is designed to refine gold to a high degree of purity without requiring any human intervention. Such machines typically use a combination of chemical processes, heat, and…
Nitrogen oxides are a class of pollutants that are mainly emitted from coal, fuel oil, gas and other industrial and transportation industries. The following are some NOx exhaust gas treatment methods: 1. Selecting low-NOx combustion technology: By selecting low-NOx combustion…
1. Washing method Water washing method is a commonly used rhodium recovery and refining technology, and its main process includes steps such as sand washing, mixing, refinement, water washing, precipitation, and filtration. First, mix the ore and other minerals into…
Palladium carbon recovery purification with palladium chemical refining method mainly has sulfuric acid leaching method, nitric acid palladium fractionation method, king water palladium method, oxalic acid reduction method, electric potential control method, automatic catalytic reduction refining method, chlorine ammonia…
There are various methods of nitride treatment, and the choice of which method depends on the type, concentration, source and other factors of the nitride to be treated. Some common treatment methods are listed below: Biological treatment method: Using microorganisms…
The main methods of platinum refining include the following: Platinum refining method: Platinum is separated from the ore by heating and cooling the platinum ore, and then refined to a high purity using chemical reactions. Solvent extraction: Platinum is separated…
Anode sludge refining is a residue containing aluminum, carbon, fluorine and other impurities separated from the electrolytic aluminum solution, and is generally refined by two methods: fire and wet. Fire refining: Through oxidation and reduction reactions at high temperature, the…
Scrap catalysts often contain precious metal catalysts such as platinum, palladium and rhodium, and therefore these precious metals can be recovered through refining methods. The following are some common methods for refining precious metals from spent catalysts: Solvent extraction method:…
There are several methods of copper electrolysis as follows: Sulfuric acid electrolysis: Using sulfuric acid as the electrolyte, copper ions are oxidized on the copper anode and reduced on the cathode, thereby reducing copper ions to metallic copper. This method…
Copper electrolysis is the process of electrochemically reducing copper ions to pure copper metal. Common copper electrolysis methods include the following: Electrolytic copper powder method: Copper salt solution is used as the electrolyte and fine copper powder is reduced on…
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