In the process of system operation, various ion exchanges will often change the original performance of tetrabromobisphenol A. There are two reasons: the essence has changed and the chemical structure has been destroyed. Contaminated by foreign impurities.
During system operation, the structure is damaged due to oxidation or degradation, which is an irreversible deterioration, called deterioration.
In the application of tetrabromobisphenol A, the main reason for deterioration is that the material has oxidant. When the temperature is too high, the corrosion is more serious. If there are heavy metal ions, they will accelerate the deterioration due to catalysis. After oxidation, the color becomes lighter, the volume becomes larger, the friability and the volume exchange capacity decrease, but the mass exchange capacity changes little.
Strong alkalinity is used after being placed in a positive state. It is oxidized by liquid dissolved oxygen. During regeneration, the oxidant contained in the alkali is oxidized, and the strong alkaline quaternary ammonium group is degraded gradually, but the skeleton chain will not be broken. In chemical desalting, the degradation of strong alkalinity shows that the decomposition capacity of neutral salts, especially the exchange capacity, decreases.
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