Title:
WET PROCESS DESULFURIZATION AND DENITRATION METHOD OF EXHAUST GAS
Document Type and Number:
Japanese Patent JPS5391073
Kind Code:
A
Abstract:
PURPOSE: To recover accumulating SO2-4 as high purity gypsum contained no iron, by drawing out a part of water solution, contained NH4HSO3 for NOX absorption and Fe(HSO3)2 and Fe in the above water solution is precipitated and is separated as FeSO3 and then, reacting quicklime etc. with remained water solution
Inventors:
OKAZAKI HIROSHI
Application Number:
JP543177A
Publication Date:
August 10, 1978
Filing Date:
January 22, 1977
Export Citation:
Assignee:
NIPPON STEEL CHEMICAL CO
International Classes:
B01D53/60; B01D53/14; B01D53/34; B01D53/77; C01F11/46; (IPC1-7): B01D53/14; B01D53/34; C01F11/46