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Conditions For Use Of Glass-lined Equipment

Zibo Taiji Industrial Enamel Co.,Ltd | Updated: May 24, 2017

Glass-lined equipment cannot be used under the following conditions:

(1) Any concentration and any temperature of HF can not be corrosion-resistant;

(2) Phosphoric acid: The concentration of more than 30%, temperature greater than 180 Shan when the corrosion is strong;

(3) Hydrochloric acid: concentration 10-20, temperature is greater than 150 Shan, corrosion is strong;

(4) Sulfuric acid: concentration 10-30, temperature greater than 200 Shan can not withstand corrosion;

(5) Lye: the ph is greater than or equal to 12, the temperature is greater than 100 Shan, can not withstand corrosion.

The corrosion resistance of glass-lined equipment is based on the contact of the glass liner with the medium to form a layer of silicone-oxygen protective film which prevents the media from corroding the tank. When the glass-lined contact with alkali liquid, the surface can not form a silicone-oxygen protective film, resulting in a continuous deep erosion of lye into the glass layer, and the higher the alkali concentration, the higher the temperature of the degree of erosion is greater. The boiling-State alkali solution has the greatest erosion ability.