METHOD FOR REGENERATING CATALYST FOR PRODUCING ISOPRENE FROM 4,4-DIMETHYL-1,3-DIOXANE Russian patent published in 2012 - IPC B01J38/02 B01J38/12 C07C11/18

Abstract RU 2446884 C1

FIELD: chemistry.

SUBSTANCE: invention relates to methods of regenerating catalysts. Described is a method of regenerating a catalyst for producing 4,4-dimethyl-1,3-dioxane by firing coke and resin in the presence of water vapour and air or an oxygen-containing mixture in series-connected reactors at temperature 400-500°C and pressure in the first reactor of 0.9-1.4 atm and pressure at the output of the second reactor of 0.5-0.7 atm.

EFFECT: low specific consumption of water vapour and other energy resources.

3 cl, 3 ex

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RU 2 446 884 C1

Authors

Kovalenko Vladimir Vasil'Evich

Dates

2012-04-10—Published

2010-07-28—Filed