Alumina supporter, and preparation method and application thereof
A technology of alumina carrier and alumina, which is applied in the direction of catalyst carrier, chemical instrument and method, metal/metal oxide/metal hydroxide catalyst, etc., can solve the problem of large difference in properties of pseudo-boehmite dry rubber powder, Affect the properties of the carrier and the application effect, etc., to achieve the effect of high-efficiency demetallization performance, reduced damage, and improved crushing strength
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example 1
[0025] Weigh an appropriate amount of pseudo-boehmite dry glue (produced by Shenyang Catalyst Factory) powder, place it in a muffle furnace, and bake it at 500°C and 800°C for 3 hours to make alumina dry powder; weigh 20 grams of alumina baked at 500°C powder is mixed with 80 grams of alumina powder roasted at 800 ° C, and 10 grams of pseudoboehmite, 4 grams of scallop powder and an appropriate amount of aqueous solution dissolved in 5 grams of concentrated nitric acid are added to the above-mentioned mixture and kneaded evenly to form a plastic material. Extruded by extruder; the formed strip-shaped wet material was dried at 120°C for 2 hours, and the dried shaped product was calcined at 500°C for 3 hours to obtain the alumina carrier B1 provided by the present invention.
example 2
[0027] Same as Example 1, except that the roasting temperature is 450°C and 700°C respectively, the additions of the two kinds of oxide powders are respectively 30 grams and 70 grams, and the additions of pseudo-boehmite are 20 grams, and the aluminum oxide provided by the invention is obtained Carrier B2.
example 3
[0029] Same as Example 1, except that the roasting temperature is 450°C and 900°C respectively, the additions of the two kinds of oxide powders are respectively 40 grams and 60 grams, and the additions of pseudo-boehmite are 15 grams, so that the aluminum oxide provided by the invention is obtained Vector B3.
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