Title:
DESULFURIZATION OF EXHAUST FLUE GAS
Document Type and Number:
Japanese Patent JPS5288268
Kind Code:
A
Abstract:
PURPOSE: To provide a process which renders it possible to recover gypsum of good quality, and circulate and reuse an absorbing solution by using an aqueous solution containing an organic acid, NH4 salt, as the absorbing solution so that exhaust gas containing SO2 is desulfurized and scrubbed easily and economically.
Inventors:
ASANAGI ETSUO
HIZAWA MASAKATSU
WAKABAYASHI ATARU
HIZAWA MASAKATSU
WAKABAYASHI ATARU
Application Number:
JP459476A
Publication Date:
July 23, 1977
Filing Date:
January 20, 1976
Export Citation:
Assignee:
CHIYODA CHEM ENG CONSTRUCT CO
International Classes:
B01D53/50; B01D53/14; B01D53/34; B01D53/77; C01F11/46; (IPC1-7): B01D53/14; B01D53/16; B01D53/34; C01F11/46
Domestic Patent References:
| JPS51145469A | 1976-12-14 | |||
| JPS49104881A | 1974-10-03 | |||
| JPS5057985A | 1975-05-20 | |||
| JPS4987591A | 1974-08-21 | |||
| JPS51126375A | 1976-11-04 |
Foreign References:
| US3928537A | 1975-12-23 | |||
| AU101738A | ||||
| DE2460010A1 | 1975-07-03 |