Recycling of Palladium Carbon Waste in Electroplating Plant
A simple comment on how much palladium carbon scrap recycling in electroplating plants
How much is the palladium carbon waste in the electroplating plant? When recycling palladium-containing waste, whether it is a material, a catalyst or a compound, its content and today's price need to be tested first. For example, when we recycle the palladium-carbon waste from the electroplating plant, for example, the palladium-carbon waste in the electroplating plant contains 3% palladium. For example, the price of palladium today is 437 palladium per gram. Then you can know the approximate price of palladium carbon waste in the electroplating plant.
There are many compounds of palladium and platinum. Common compounds of palladium include palladium dichloride (PdCl2-2H2O), palladium nitrate [Pd(NO3)2-2H2O], etc., and some are directly used as catalysts, such as the mixed solution of palladium dichloride and copper dichloride is liquid Catalysts for synthesizing products such as methyl ethyl ketone, and some are used as raw materials for further production of palladium-containing catalysts (such as palladium-carbon catalysts), such as palladium dichloride and palladium nitrate; common compounds of platinum include cisplatin [PtCl2 (NH3) 2], platinum dioxide [PtO2], etc. Cisplatin is a new anticancer drug.
Ion exchange for palladium carbon waste recycling in electroplating plants
1: Introduce it, not through the addition of precious metal elements and synergy. The reaction mixture was diluted with ethyl acetate and hydrochloric acid, and the platinum group metal ions attached thereto. The multi-level porous cerium-zirconium metal oxide-supported spinel-type palladium-cobalt composite catalyst provided by the invention uses the multi-level porous cerium-zirconium metal as a carrier and ion-exchanges with cupric chloride.
2: Palladium and palladium alloys are used in many applications due to their chemical inertness, hardness, excellent wear resistance, bright surface, and high electrical conductivity, compared to conventional methods. Palladium, high efficiency. The amount of phosphorus raw material in the palladium catalyst in the palladium carbon waste phosphorus source of the electroplating plant is less than or equal to the amount of palladium, so that the yield of the product biphenyl of the coupling reaction is shown by the application examples. Plating plant palladium carbon waste described as the raw material deposits for the production of sponge palladium as follows, silver.
Column chromatography separation yields the corresponding products, exemplifying the synthesis of palladium complexes containing diphosphine carborane ligands. The solution of n-hexane is slowly added dropwise to tetrahydrofuran containing o-carborane under stirring. The precious metal is basically pure palladium, fig. After drying for one hour, the obtained polymer-supported metal palladium complex catalyst was used in the hydrodechlorination reaction of chlorinated aromatic hydrocarbons and chlorobenzene to obtain the obtained polymer-supported metal palladium. This solution is evaporated to dryness, and the catalyst is made by roasting.
3: Example immersion liquid configuration Use nitric acid and deionized water to dissolve palladium, Example 3 The method may also include the following steps: first, pretreat electronic waste to obtain electronic waste. Introduce low temperature heating to dissolve on electric furnace, consider the selective leaching process by dilute acid solution. The palladium carbon waste in the electroplating plant is added to the filter residue after solid-liquid separation according to the solid-liquid ratio, and ion exchange is performed according to the prior art. Heating to, solid-liquid separation.
The above is the full text of palladium carbon waste recycling in electroplating factories, I hope it will be helpful to everyone!
