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Acid And Alkaline Resistance Of Ceramic Fiber Modules

Aug 18, 2022

The ceramic fiber module is a new type of refractory lining product launched to simplify and speed up the construction of the kiln and improve the integrity of the lining. The product is white in color and regular in size. It can be directly fixed on the steel plate anchoring nails of the industrial kiln shell. .

The chemical properties of the ceramic fiber module are relatively stable on the whole, and it has good resistance to acid and alkali erosion, but the ceramic fiber module should not be used in the furnace atmosphere of the following substances.

01 Fluorine

Fluorine is the most corrosive to ceramic fibers, and it reacts with all aluminosilicate materials, including mullite fibers.

02 Vanadium and other heavy metals

Vanadium and other heavy metals in inferior fuel oil will produce V2O5 when it burns. It melts into liquid at about 690 degrees, adsorbs in the pores of the fiber, and forms a hard shell on the surface of the fiber lining, which corrodes layer by layer after falling off.

03 Sulfur and Sulfuric Acid

Sulfuric acid, while not reactive with ceramic fibers, is highly corrosive to metal anchors, and in some cases even "dissolves" anchors and furnace shells.

04 Alkali metal

Prolonged used in alkaline environments can cause shrinkage and damage to the fibrous lining, and the surface layer will continue to corrode the bottom layer after peeling off.

05 Sulfuric acid

Experiments have shown that when used in an environment above 540 ° C for a long time, the fiber will shrink significantly.


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