High-dispersity catalyst for chloroethylene synthesis and preparation method and application thereof
A catalyst and high-dispersion technology, applied in the direction of catalyst activation/preparation, catalytic reaction, hydrogen halide addition preparation, etc., can solve the problems of low mass transfer and low gas metal dispersion, achieve high catalytic activity and reduce substrate diffusion effect, good stability
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Embodiment 1
[0082] Catalyst preparation:
[0083] 1) Select 9.1 g of silicon carbide carrier and 0.91 g of zirconium boride carrier and mix them mechanically for 3 hours, then calcinate for 2 hours under the condition of nitrogen atmosphere and 200° C., and the obtained solid sample is ready for use.
[0084] 2) Dissolve 0.08g of triphenylmethylphosphine bistrifluoromethanesulfonimide salt and 0.02g of triphenylethylphosphine bromide in 5mL of toluene, stir well, then add the solid sample obtained in step 1) , impregnated for 2 hours, and dried at 180°C for later use. Wherein the mass loading of ionic liquid is 1%.
[0085] 3) Dissolve 0.009g of chloroauric acid in 0.05mL of toluene, stir evenly, add the sample obtained in step 2), dip in an external 0.2kV static electric field for 2h, and dry at 180°C for use. Wherein the mass loading amount of gold element is 0.05%.
[0086] 4) 10.109 g of the solid sample obtained above was re-dispersed in a mixed solution of 50 mL of toluene and 1....
Embodiment 2
[0090] Catalyst preparation:
[0091] 1) Select 2g of titanium carbide carrier and 8g of lanthanum boride carrier and mix them mechanically for 2h, then calcinate for 3h in argon atmosphere and 300°C, and the obtained solid sample is ready for use.
[0092] 2) Dissolve 0.25g triphenylmethylphosphine bistrifluoromethanesulfonimide salt and 0.25g N-pentyl-ethylpiperidinium chloride salt ionic liquid in 5mL nitrogen nitrogen dimethylformamide, stir well , adding the solid sample obtained in step 1), soaking for 3 hours, and drying at 180°C for later use. Wherein the mass loading of ionic liquid is 5%.
[0093] 3) Dissolve 0.103g of ruthenium chloride in 0.5mL of nitrogen-nitrogen dimethylformamide, stir evenly, add the sample obtained in step 2), and immerse in an external 3kV static electric field for 2.5h, and under the condition of 180°C Dry and set aside. Wherein the mass loading amount of ruthenium element is 0.5%.
[0094] 4) 12.5 g of the solid sample obtained above wa...
Embodiment 3
[0098] Catalyst preparation:
[0099] 1) 8 g of zirconium carbide carrier and 2 g of hafnium boride carrier were selected and mixed mechanically for 4 hours, and then calcined for 8 hours in a nitrogen atmosphere at 400° C., and the obtained solid sample was used for later use.
[0100]2) Take 0.4g of 1-propyl-2,3-dimethylimidazole bis-trifluoromethanesulfonimide salt and 0.4g of 1-hexyl-2,3-dimethylimidazole bis-trifluoromethanesulfonimide salt ion The liquid was dissolved in 8 mL of toluene, and after stirring evenly, the solid sample obtained in step 1) was added, soaked for 4 hours, and dried at 180°C for later use. Wherein the mass loading of ionic liquid is 8%.
[0101] 3) Dissolve 4.53g of copper phthalocyanine in 9.1mL of toluene, stir evenly, add the sample obtained in step 2), dip in an external 3kV static electric field for 3h, and dry at 180°C for later use. Wherein the mass loading of copper element is 5%.
[0102] 4) 14.81 g of the solid sample obtained above ...
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