Document Type and Number:
Japanese Patent JPS5530704
Kind Code:
B2
Abstract:
Sulfonation of a sulfonatable organic compound is effected by means of a two-stage reaction with an SO3-containing gas, in which the first-stage reaction is carried out by flowing, in parallel flow relation, said organic compound and said SO3-containing gas upwardly into the lower ends of a plurality of vertically positioned cylinders or double-cylinders, and the second-stage reaction is carried out by the steps of collecting the reaction product of the first-stage reaction, adding fresh SO3-containing gas to the reaction product thus collected and flowing in parallel flow arrangement the reaction mixture downwardly into the upper end of a vertically positioned cylinder or double-cylinder.
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Application Number:
JP8906975A
Publication Date:
August 13, 1980
Filing Date:
July 21, 1975
Export Citation:
International Classes:
B01J10/02; C07B31/00; C07B45/02; C07C67/00; C07C301/00; C07C303/00; C07C303/02; C07C303/06; C07C305/00; C07C309/01