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PRESSELS BASED ON PYROGEN-PRODUCED SILICON DIOXIDE-ALUMINUM OXIDE MIXED OXIDE, METHOD FOR THEIR PRODUCTION AND THEIR USE.
PRESSELS BASED ON PYROGEN-PRODUCED SILICON DIOXIDE-ALUMINUM OXIDE MIXED OXIDE, METHOD FOR THEIR PRODUCTION AND THEIR USE.
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机译:基于热解二氧化硅-氧化铝-氧化铝混合氧化物的压力机,其生产方法和用途。
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摘要
A pressed component made of pyrogenically produced SiO2-Al2O3 and mixed oxides has the following physical chemical characteristics an outer dia. of 2-15 mm, a BET surface of 90-200 m2/g, a pore vol. of 0.6-1.3 ml/g, a pore distribution such that no pores are less than 5nm in size, and at least 80% are between 5 and 40nm is size, a strength of 30-120 N and a compsn. comprising comprising greater than 75 wt% SiO2 and the rest Al2O3.
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