Supported-type [PdSCl<x>]<x> catalyst, preparation method thereof, and applications of supported-type [PdSCl<x>]<x> catalyst
A catalyst and supported technology, applied in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, catalytic reactions, etc., can solve problems such as sublimation loss, and achieve simple preparation, high activity, and convenient operation Effect
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Embodiment 1
[0047] Spherical activated carbon is selected as the carrier, the particle size is 30 mesh, the ash content is 4.6wt%, and the specific surface area is 900m 2 / g, pore volume 1.1mL / g, and treated with 500ml of nitric acid with a concentration of 10wt% at 20°C for 20h, dried at 100°C for 20h, and set aside. 50ml of K 2 PdCl 4 solution (in which the Pd content is 0.001g / ml), 10ml of (NH 4 ) 2 S solution (in which the S content is 0.01g / ml) and 2.5g of the chloride salt of N-hexylpyridine are mixed, and an appropriate amount of deionized water is added to make the volume to 110ml; at 20°C, the mixture is added dropwise under the action of ultrasound onto 100g of spherical activated carbon, and impregnated under vacuum conditions and ultrasonic waves for 0.5 hours; then vacuum-dried at 60°C for 30 hours to obtain the supported ionic liquid-promoted [PdSCl x ] x- A composite catalyst, wherein the Pd loading (relative to the mass of the support) is 0.05wt%, the loading of the S...
Embodiment 2
[0050] Columnar carbon nanotubes are selected as the carrier, the particle size is 80 mesh, the ash content is 2.4wt%, and the specific surface area is 500m 2 / g, pore volume 0.85mL / g. 20ml of (NH 4 ) 2 PdCl 4 solution (wherein the Pd content is 0.05g / ml), 10ml of NaHSO 3 solution (in which the S content is 0.5g / ml) and 25g of N-butyl-N-methylpyrrolidone chloride salt are mixed, and an appropriate amount of deionized water is added to make the volume to 85ml; at 60°C, the mixed Droplets were added to 100g columnar carbon nanotubes, and impregnated under vacuum conditions and ultrasonic waves for 8 hours; then vacuum-dried at 120°C for 2 hours to obtain the supported ionic liquid-promoted [PdSCl x ] x- A composite catalyst, wherein the Pd loading (relative to the mass of the carrier) is 1 wt%, the loading of the S element (relative to the mass of the carrier) is 5 wt%, and the loading of the ionic liquid (relative to the mass of the carrier) is 25 wt%.
[0051]Take 2g of ...
Embodiment 3
[0053] Select columnar SiO 2 As a carrier, its particle size is 50 mesh and its specific surface area is 300m 2 / g, pore volume 0.7mL / g. 20ml of H 2 PdCl 4 solution (wherein the Pd content is 0.01g / ml), 30ml of KHSO 3 Solution (wherein the S content is 0.008g / ml) and the chloride salt of 20g 1-butyl-3-methylimidazole are mixed, and add appropriate amount of deionized water to make it to 70ml; At 50 ℃, under the action of ultrasonic The mixture was added dropwise to 100g columnar SiO 2 , and impregnated under vacuum conditions and ultrasonic waves for 7 hours; then vacuum-dried at 100°C for 8 hours to obtain the supported ionic liquid-promoted [PdSCl x ] x- A composite catalyst, wherein the Pd loading (relative to the mass of the support) is 0.2wt%, the loading of the S element (relative to the mass of the support) is 0.24wt%, and the loading of the ionic liquid (relative to the mass of the support) is 20wt%.
[0054] Take 2g of this catalyst and apply it to the hydrochl...
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