Organo-metallic catalyst for preparing cyclohexane by hydrogenation of benzene and preparation method and application thereof
An organometallic and catalyst technology, applied in the field of organometallic catalysts for the hydrogenation of benzene to cyclohexene and its preparation, can solve problems such as pollutants, achieve low reaction temperature, mild reaction conditions, and reduce energy consumption
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Embodiment 1
[0025] Dissolve 2.0 grams of ruthenium trichloride and 10.0 milliliters of 2-methyl-5-isopropyl-1,3-cyclohexadiene in 100 milliliters of absolute ethanol, place in a 150 milliliter three-necked flask, and heat at 70 ° C , react under normal pressure conditions, stop the reaction after 2.5 hours, cool to room temperature, and get a red precipitate, after filtering, wash the filter cake 3 times with absolute ethanol, after filtering and drying, [RuCl 2 (C 10 h 16 )] 2 That is Ru-S1, the product yield is 61%.
[0026] The prepared 1.0 g Ru-S1 and 10 g C 6 (CH 3 ) 6 Put it in a reaction tube at 170°C and react under normal pressure, stop the reaction after 5 hours, cool to room temperature, wash the reaction product with n-hexane for 5 times, and dry it in vacuum to obtain the product [RuCl 2 (C 6 (CH 3 ) 6 )] 2 , namely Ru-S2, the product yield is 70%.
[0027] Place the prepared 0.5 gram RuS2, 0.5 gram anhydrous sodium carbonate, 2 gram 1,3-cyclodihexene and 40 millil...
Embodiment 2
[0032] Dissolve 2.0 grams of ruthenium trichloride and 10.0 milliliters of 2-methyl-5-isopropyl-1,4-cyclohexadiene in 100 milliliters of absolute ethanol and place them in a 150 milliliter three-necked flask at 75° C. The reaction was carried out under high pressure conditions, the reaction was stopped after 2.0 hours, cooled to room temperature, and a red precipitate was obtained. After filtration, the filter cake was washed 5 times with absolute ethanol, and the product [RuCl 2 (C 10 h 16 )] 2 That is Ru-S1, the product yield is 63%.
[0033] The prepared 1.0 g Ru-S1 and 10 g C 6 (CH 3 ) 6 Place it in a reaction tube at 180°C and react under normal pressure, stop the reaction after 3 hours, cool to room temperature, wash the reaction product with n-hexane for 5 times, and dry it in vacuum to obtain the product [RuCl 2 (C 6 (CH 3 ) 6 )] 2 , namely Ru-S2, the product yield is 78%.
[0034] The prepared 0.5 g [RuCl 2 (C 6 (CH 3 ) 6 )] 2 , 0.5 grams of anhydrous ...
Embodiment 3
[0039] Dissolve 2.0 g of ruthenium trichloride and 10.0 ml of 2-methyl-5-isopropyl-1,3-cyclohexadiene in 100 ml of anhydrous propanol, place in a 150 ml three-necked flask, and heat at 85°C , react under normal pressure conditions, stop the reaction after 3.0 hours, cool to room temperature, and get a red precipitate, after filtering, wash the filter cake 4 times with absolute ethanol, filter and dry to get the product [RuCl 2 (C 10 h 16 )] 2 That is Ru-S1, and the product yield is 81%.
[0040] The prepared 1.0 g Ru-S1 and 10 g C 6 (CH 3 ) 6 As for the reaction in the reaction tube at 182° C. under normal pressure, the reaction was stopped after 3 hours, cooled to room temperature, washed with n-hexane for 5 times, and vacuum-dried to obtain the product [Ru(C 6 Me 6 )Cl 2 ] 2 That is Ru-S2, the product yield is 76%.
[0041] The prepared 0.5 gram Ru-S2, 0.5 gram anhydrous sodium carbonate, 5 gram cyclopentadiene and 40 milliliters of absolute ethanol are placed in a...
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