Title:
PRODUCTION OF SULFURIC TRIOXIDE FROM FUMING SULFURIC ACID
Document Type and Number:
Japanese Patent JPS61168506
Kind Code:
A
Abstract:
A continuous process for the generation of sulphur trioxide from oleum suitable for use in the sulphonation of organic compounds which comprises continuously introducing oleum feed to a sulphur trioxide desorption tower; continuously introducing a dry feed airstream comprising recycled dry feed air stream to the desorption tower, whereby a gaseous mixture of sulphur trioxide in air is produced; collecting spent oleum from the desorption tower; introducing the gaseous mixture to a sulphpnation reactor; and recycling spent gaseous mixture from the reactor to the desorption tower as recycled feed air. The process offers reduced environmental pollution and operating costs.
Inventors:
KAMURON GOODON MAREE
HOITSUTAA ROBAATO FURANSHISU
HOITSUTAA ROBAATO FURANSHISU
Application Number:
JP818886A
Publication Date:
July 30, 1986
Filing Date:
January 20, 1986
Export Citation:
Assignee:
CIL INC
International Classes:
B01D53/77; C01B17/74; C07B31/00; C07B45/02; B01D53/50; C07C67/00; C07C301/00; C07C303/02; C07C303/06; (IPC1-7): B01D53/34; C01B17/74; C07B45/02; C07C139/00
Attorney, Agent or Firm:
Shigeru Yagida
Previous Patent: JPS61168505
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