Ruthenium catalyst for producing vinyl chloride, and preparation method thereof
A ruthenium catalyst and catalyst technology are applied in the directions of catalyst activation/preparation, hydrogen halide addition preparation, chemical instruments and methods, etc., can solve problems such as sublimation loss of ruthenium catalyst, achieve good economy and industrial application value, convenient operation, The effect of enhancing stability
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Embodiment 1
[0052] Select columnar activated carbon as the carrier, its particle size is 40 mesh, the ash content is 3.0wt%, and the specific surface area is 800m 2 / g, pore volume 0.6ml / g, and treated with 200ml of 10wt% hydrochloric acid at 25°C for 3.5h. Dry at 110°C for 10 hours and set aside. 50ml of RuCl 3 The solution (wherein the Ru content is 0.002g / ml) is mixed with 5g of 1-butyl-3-methylimidazolium chloride salt, and the mixed solution is added dropwise on the 100g activated carbon carrier under the action of ultrasonic waves at 30°C. The soaking time is 8 hours. Then at 30°C, add 10ml of Na to the above system dropwise under the action of ultrasound. 2 S solution (wherein the S content is 0.01g / ml), and soaked for 10 hours under the action of ultrasonic waves. The impregnated catalyst was vacuum-dried at 110°C for 6 hours to obtain catalyst A, wherein the Ru loading (relative to the mass of the support) was 0.1wt%, the S loading (relative to the mass of the support) was 0....
Embodiment 2
[0055] Select columnar carbon nanotubes as the carrier, the particle size is 50 mesh, the ash content is 3.0wt%, and the specific surface area is 200m 2 / g, the pore volume is 0.66ml / g. Mix 12.5ml of ammonium hexachlororuthenate solution (wherein the Ru content is 0.08g / ml) and 20g of tributylethylphosphine bromide, and add the mixed solution dropwise to 100g of carbon nanotubes under ultrasonic action at 40°C On the carrier, the impregnation time is 5 hours under the action of ultrasonic waves. Then, at 40°C, 10ml of KHS solution (in which the S content is 0.5g / ml) and 43.5ml of deionized water were added dropwise to the above system under the action of ultrasonic waves, and immersed for 6 hours under the action of ultrasonic waves. The impregnated catalyst was vacuum-dried at 100°C for 8 hours to obtain catalyst B, in which the Ru loading (relative to the mass of the support) was 1 wt%, the S loading (relative to the mass of the support) was 5 wt%, and the loading of the io...
Embodiment 3
[0058] Select columnar graphene as the carrier, its particle size is 80 mesh, the ash content is 2.1wt%, and the specific surface area is 2630m 2 / g, the pore volume is 1.5ml / g. Mix 100ml of potassium pentachlororuthenate (III) solution (wherein the Ru content is 0.004g / ml) and 10g of tributylmethylammonium chloride, and add the mixed solution dropwise to 100g of graphene carrier under the action of ultrasonic waves at 20°C On, the immersion time is 4 hours under the action of ultrasonic waves. Then at 20°C, add 20ml of (NH 4 ) 2 S 2 o 3 solution (wherein the S content is 0.2g / ml) and 30ml deionized water, and soaked for 8 hours under the action of ultrasonic waves. The impregnated catalyst was vacuum-dried at 90°C for 9 hours to obtain catalyst C, in which the Ru loading (relative to the mass of the support) was 0.4wt%, the S loading (relative to the mass of the support) was 4wt%, and the loading of the ionic liquid was 10wt%. .
[0059] Take 2g of this catalyst and appl...
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