Method of desulfurizing exhaust emission using pulverized slag a

Details Method of desulfurizing exhaust emission using pulverized slag a Method of desulfurizing exhaust emission using pulverized slag a

1976-02-26

1978-02-14

Vertiz, O. R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423166, C01B 1700, C01F 100

Patent

active

040738647

ABSTRACT:
A method of desulfurizing exhaust emissions which comprises pulverizing slag from a blast furnace, converter, open-hearth furnace or the like which is composed principally of Ca.sub.2 Al.sub.2 SiO.sub.7, suspending the resulting minute particles in water, and bringing the aqueous suspension of pulverized slag into contact with the exhaust that contains sulfur dioxide and oxygen, while supplying the slag at a rate to keep the pH of the suspension within a range of 1.5 to 4.0 and thereby to remove the sulfur dioxide from the exhaust.

REFERENCES:
patent: 3547583 (1970-12-01), Wilson
patent: 3720754 (1973-03-01), Wilson
patent: 3906079 (1975-09-01), Tonaki et al.

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