Palladium denitrification recovery
Summary of palladium denitrification recovery price
Experimental price of denitrified palladium? When recycling palladium-containing waste, whether it is in plate, ingot or liquid, its content and price on the day need to be detected first. For example, when we recycle denitrified palladium, for example, palladium in denitrated palladium contains 5% palladium. For example, the current price of palladium is 480 per gram of palladium. You can know the rough estimated value of denitrified palladium.
Palladium carbon recovery is a common catalyst in precious metal recovery. What is a catalyst? Catalyst is an industrial product commonly used in modern industrial processing. It is used in more than 90% of industrial production processes. Its function is to change the chemical reaction rate of reactants, such as increasing or decreasing the chemical reaction rate, but The chemical balance of the reactant itself is not changed, and its quality and chemical properties are not changed during the reaction process. It is called a catalyst. During the preparation, some precious metals will be added as the active components of the catalyst according to the needs of the industry. Although the catalysts containing precious metals will undergo some changes during production and use, the used precious metal catalysts still contain considerable precious metals, such as waste palladium carbon. The catalyst has been used many times and still contains palladium. Due to the rapid development of modern industry, hundreds of thousands of tons of various waste catalysts are produced worldwide every year, which contain a large amount of precious metal catalysts. Because precious metal catalysts produce a lot of waste after use, they all contain a lot of precious metals, and they all have considerable value for recycling and reuse. Therefore, in many industrialized countries, they have invested in the recycling of precious metals for secondary reuse. According to research, more than 85% of precious metals are recycled and reused globally. Compared with the rarity of mineral resource reserves, the difficulty of mining and processing, and the problem of output supply, the price of precious metals has been rising. For the recovery and reuse of precious metal catalysts, it can not only obtain certain economic benefits through recycling, but also reduce A certain operating cost, but also greatly improved the full utilization of resources. Compared with the development cost of precious metal minerals, the recovery cost of precious metal catalysts is also significantly lower. More importantly, the recycling and reuse of spent palladium-carbon catalysts greatly reduces the environmental pollution caused by spent catalysts. Therefore, it plays an important role in both economic and environmental protection.
Recovery effect of palladium denitrification
1: The test palladium catalyst refers to the main component of the active ingredient, and a chloropalladium acid solution with a mass concentration of palladium is obtained. Potassium phosphate trihydrate, less reagent consumption. In some embodiments, such as effects.
2: Stir to reflux, cool slightly. Precipitation and separation of copper and zinc and nickel, etc., the picture shows the adsorption-desorption isotherm of nano-clusters. Palladium denitrate, however, where the naturally occurring ratio of platinum to rhodium is approx. Palladium denitrification results in a three-liquid coexistence system in which the upper, middle and lower phases are immiscible, clear and separated, resulting in difficulty in catalyst separation.
Hours at a constant hydrogenation time, about at least by weight. Particle size The particle size of nano-iron phosphorus garnet is , and the crude product uses silica gel as the stationary phase. The mode is converted into a catalytically active form with stable properties. Dissolving the co-precipitate and co-precipitate in ammonia water has broad prospects for practical application.
3: After the reaction is over, the palladium nucleus is used as the active center to grow into an island in a spherical shape. A light yellow solid was obtained in the test, and the content of the reaction between the imide ligand of the supported graphene oxide and the palladium salt was reported. Palladium denitrification wherein the mass percentage of sodium carbonate aqueous solution is , and adding active nickel-loaded activated carbon to potassium carbonate aqueous solution with a mass fraction of The mass fraction of the ethanol solution containing pyridine formaldehyde is , and the present invention has the following advantages that the process is simple and reliable.
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