FIELD: production of catalysts on base of compounds of copper, zinc and aluminum for low-temperature conversion of carbon oxide with water steam; chemical, and petrochemical industries; production of ammonia and hydrogen.
SUBSTANCE: proposed method consists in mixing the solution of ammonia-carbonate complex of copper with solution of ammonia-carbonate complex of zinc and with oxide or hydroxide of aluminum; suspension thus obtained is heated to 40-50°C, then it is subjected to stirring continued for 1-2 h, after which temperature is raised to 85-97°C and purge gas is introduced, for example nitrogen or carbon dioxide and suspension is mixed at solid-to-liquid ratio of 1:(2.0-4.0); sediment is removed; mixture is dried, calcined and liquid stabilizing additives are introduced into calcined mass at solid-to-liquid ratio of 1: (0.2-1.0) and 1-1.5 mass-% of graphite is added; mixture is stirred, granulated and pelletized. Used as stabilizing additives are chromic, nitric or oxalic acids, or their salts, or carbamide.
EFFECT: enhanced activity and thermal stability.
2 cl, 1 tbl, 20 ex
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Authors
Dates
2006-08-10—Published
2004-06-07—Filed