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Hydrocarbon resin can generally be divided into C5 alphatic hydrocarbon resin, DCPD petroleum resin, C9 aromatics, C5 C9 resin and etc. Because its compositing polymer is hydrocarbon compound, it is also called hydrocarbon resins. Commonly, they are of wide application for their particular performance.
In the industry of adhesive and sealant, hydrocarbon resin plays an important role as tie resin. Petroleum resin can generally be classified four types, as C5 (aliphatic), C9 aromatic (polycyclic aromatic hydrocarbons),
First of all, we should quickly identify the source of the oil, troubleshooting, and to prevent the oil continues to leak into the. When necessary, it should clean up the oil accumulated in the equipment. Slight contamination of the resin does not necessarily need to be addressed in several renewable gradually restoring its exchange capacity. Serious pollution of the resin through a small-scale test, select the appropriate method of treatment.
The silicon compound contamination occurs in strong base anion exchange, especially in the strong, weak-type anion exchange resin joint application equipment and systems, which often results in the anion exchange in addition to silicon efficiency decline.
Sulfuric acid regeneration calcium-type cation resin regeneration solution concentration is too high, or the flow rate is too slow, CaSO4 SO42-concentration near the resin particles at the regeneration of Ca2 + solution exceeds the solubility product of CaSO4 precipitation occurs,
Cation and anion resins iron contamination may occur. The appearance of the contaminated resin is dark brown, severe turns black. Under normal circumstances, the iron content of more than 150mg per 100g of the resin, it should be processed. The presence of iron will accelerate the degradation of the anion exchange resin.