Kaolinic heavy aromatic hydrocarbon transalkylation catalyst preparation method
A kind of heavy aromatic hydrocarbon alkyl, catalyst technology, applied in the field of catalysis
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Embodiment 1
[0065] Take 600g (dry basis) particles of 200-mesh attapulgite clay, add it to 1200g of sulfuric acid solution with a concentration of 15%, and treat it for 4 hours at 60°C, filter, wash, and dry to obtain transcrystalline activated clay , add 13.76g safflower powder and mix with mass percent concentration and be 30% sodium hydroxide aqueous solution as peptizer, rolling molding makes in the formed bead that particle diameter is that the bead content of 0.30~0.50 millimeter is 25 (mass) %, The content of pellets with a particle diameter of 0.50-0.70 mm is 60 (mass)%, the content of pellets with a particle diameter of 0.70-1.00 mm is 12 mass%, and the content of pellets with a particle diameter greater than 1 mm is 3 (mass)%. Dry at 120°C for 12 hours, bake at 550°C for 2 hours (the same below), and detect the chemical composition by X-ray fluorescence diffraction, in which the content of silicon oxide is 69.03%, the content of aluminum oxide is 17.68%, the content of magnesium ...
Embodiment 2
[0067]All reaction raw materials are the same as example 1, and wherein acid treatment condition is to get 600g attapulgite, join in the concentration of 1200g and be in the sulfuric acid solution of 10%, under 60 ℃ of conditions, process 6 hours, obtain conversion after filtering, washing, drying Crystal activated clay, add 14.12g sodium carboxymethyl cellulose and mix well, use 30% sodium hydroxide aqueous solution as the peptizer, roll it into small balls of different sizes and ratios on a rolling ball machine, and dry at 120°C for 12h , Roasted at 650°C for 2 hours, and the chemical composition was detected by X-ray fluorescence diffraction. The content of silicon oxide was 68.44%, the content of aluminum oxide was 17.35%, the content of magnesium oxide was 1.93%, and the content of iron oxide was 1.27%. Under stirring conditions, put 700ml of sodium silicate, 200ml of lye, 87ml of directing agent, 150ml of deionized water and 500g of activated attapulgite microspheres into...
Embodiment 3
[0069] All reaction raw materials are the same as Example 1, wherein the acid treatment condition is to get 600g attapulgite, join in 1800g concentration and be in the sulfuric acid solution of 10%, under 70 ℃ of conditions, process 6 hours, after filtering, washing, drying, obtain transcrystal Activated clay, add 14.48g of celadon powder and mix well, use 20% sodium hydroxide aqueous solution as the peptizer, roll it into small balls of different sizes and proportions on a rolling ball machine, dry at 120°C for 12h, and roast at 550°C for 2h , using X-ray fluorescence diffraction to detect the chemical composition, wherein the silicon oxide content is 68.16%, the aluminum oxide content is 17.22%, the magnesium oxide content is 2.02%, and the iron oxide content is 1.35%. Under the condition of stirring, put 750ml of sodium silicate, 240ml of lye, 105ml of directing agent, 200ml of deionized water and 500g of activated attapulgite microspheres into a 2L stainless steel reaction ...
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