Production of acid from smelting flue gas; treatment of waste acid
Thread Content
Why is there a large amount of foam in the reaction tank of the sulfur chemical processing unit for waste acid treatment, and also in the flow channel?
Absorption of acid-making exhaust gases from smelting processes, at a low temperature of 60°C, with sulfuric acid as a by-product.
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The concentration of the dilute acid is too high, resulting in a vigorous reaction
Concentrated acid is added, resulting in the formation of foam along with elemental sulfur
Is there a yellow powdery layer on the surface?