FIELD: chemistry.
SUBSTANCE: composition contains 1-20% yttrium oxide, 1-30% tungsten oxide and zirconium oxide - the rest. The specific surface area of the composition is at least equal to 20 m2/g after calcination for 4 hours at 900°C.
EFFECT: high efficiency of the catalyst, obtaining catalysts with specific acidity and heat resistance.
13 cl, 1 tbl, 1 ex
Title |
Year |
Author |
Number |
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