Method for preparing palladium acetate compound
A technology of palladium acetate and compounds, which is applied in the field of preparation of palladium acetate compounds, can solve the problems of long time required and affecting the purity of palladium acetate crystals, etc., and achieve the effect of high yield
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Embodiment 1
[0019] Accurately weigh 100g of palladium sponge, add aqua regia to dissolve it, and make it into 50g / L chloropalladium acid solution, add 1%-10% of , , One or two mixtures of aqueous solution and 5%–15% sodium hydroxide solution to adjust the pH value to 9, add an appropriate amount of 4:1 formaldehyde and hydrazine hydrate, and raise the temperature to 50 Restore the floating active palladium black sponge, filter and wash until there is no chloride ion; add the active palladium black sponge, glass beads and glacial acetic acid into the distillation flask, set up the reflux tube, and heat the reflux reaction in an infrared electric furnace, batch by batch Add 2–3 liters of glacial acetic acid, and the reaction is complete in about 30–120 minutes; filter while hot, transfer the filtrate to a rotary evaporator, control the negative pressure to 0.08MPa, and the evaporation temperature to 30–60 , evaporated to the precipitation of palladium acetate crystals, then cooling a...
Embodiment 2
[0021] Accurately weigh 100g of palladium sponge, add aqua regia to dissolve it, and make it into 50g / L chloropalladium acid solution, add 1%-10% of , , One or two mixtures of aqueous solution and 5%–15% sodium hydroxide solution to adjust the pH to 10, add an appropriate amount of 4:1 formaldehyde and hydrazine hydrate, and raise the temperature to 50 Restore the floating active palladium black sponge, filter and wash until there is no chloride ion; add the active palladium black sponge, glass beads and glacial acetic acid into the distillation flask, set up the reflux tube, and heat the reflux reaction in an infrared electric furnace, batch by batch Add 2–3 liters of glacial acetic acid, and the reaction is complete in about 30–120 minutes; filter while hot, transfer the filtrate to a rotary evaporator, control the negative pressure to 0.08MPa, and the evaporation temperature to 30–60 , evaporated to the precipitation of palladium acetate crystals, then cooled and cry...
Embodiment 3
[0023] Accurately weigh 100g of palladium sponge, add aqua regia to dissolve it, and make it into 50g / L chloropalladium acid solution, add 1%-10% of , , One or two mixtures of aqueous solution and 5%–15% sodium hydroxide solution to adjust the pH value to 9, add an appropriate amount of 5:1 formaldehyde and hydrazine hydrate, and raise the temperature to 50 Restore the floating active palladium black sponge, filter and wash until there is no chloride ion; add the active palladium black sponge, glass beads and glacial acetic acid into the distillation flask, set up the reflux tube, and heat the reflux reaction in an infrared electric furnace, batch by batch Add 2-3 liters of glacial acetic acid at a time, and the reaction is complete in about 30-120 minutes; filter the solution while it is hot and transfer it to a rotary evaporator, control the negative pressure to 0.08MPa, and the evaporation temperature to 30-60 , evaporated to the precipitation of palladium acetate cr...
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