Introduction to the four major varieties of Perlite resin-Yuanlai Water Treatment

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Introduction to the four major varieties of Perlite resin

Released Date: Aug 15,2015 Article Source: Yuanlai Water Treatment

Pullet resin is a product of the British Pullet Group. It is an ion exchange resin. With its outstanding performance, it is widely used in industries and fields such as power, electronics, chemical engineering, metallurgy, medicine, catalysis, and environmental protection. Now we introduce four main varieties of Perlite ion exchange resins. One of the Perlite resin varieties is the strongly acidic cation resin. This type of resin contains a large number of strongly acidic groups, such as sulfonic acid groups -SO3H, which can easily dissociate H+ in solution, thus presenting strong acidity. After the resin dissociates, the negatively charged groups contained in its body, such as SO3-, can adsorb and combine with other cations in the solution. These two reactions enable the H+ in the resin to exchange with the cations in the solution. Strongly acidic resins have a very strong dissociation ability and can dissociate and undergo ion exchange in both acidic and alkaline solutions. Resin in use

Perlite resin varietiesOne:Strongly acidic cation resin

This type of resin contains a large number of strong acidic groups, such as sulfonic acid groups-SO3HIt is easy to dissociate in solutionH+Therefore, it is strongly acidic. After the resin dissociates, the negatively charged groups contained in the body, such asSO3-It can adsorb and combine with other cations in the solution. These two reactions make the resin inH+Exchange with cations in the solution. Strongly acidic resins have a very strong dissociation ability and can dissociate and undergo ion exchange in both acidic and alkaline solutions. After being used for a period of time, the resin needs to undergo regeneration treatment, that is, to chemically make the ion exchange reaction proceed in the opposite direction, so that the functional groups of the resin return to their original state for reuse. If the cationic resin mentioned above is regenerated with strong acid, at this time, the resin releases the adsorbed cations and then reacts withH+Combine and restore the original composition.

Perlite resin varietiesPart Two:Weakly acidic cation resin

This type of resin contains weakly acidic groups, such as carboxyl groups-COOHIt can dissociate in waterH+ And it is acidic. The negatively charged groups remaining after the resin dissociates, such asR-COO-(RIt is a hydrocarbon group)It can adsorb and combine with other cations in the solution, thereby generating cation exchange. The acidity of this resin, that is, its dissociation property, is relatively weak, at a low levelpHIt is difficult to dissociate and undergo ion exchange, and can only be carried out in alkaline, neutral or slightly acidic solutions(Such aspH5～14)It works. This type of resin is also regenerated with acid(It is easier to regenerate than strongly acidic resins).

Perlite resin varietiesPart ThreeStrongly basic anion resin

This type of resin contains strong basic groups, such as quaternary ammonium groups(Also known as quaternary amino group)-NR3OH(RIt is a hydrocarbon group)It can dissociate in waterOH-And it is strongly alkaline. The positively charged groups of this resin can adsorb and combine with anions in the solution, thereby generating anion exchange.This resin has a very strong dissociation property,In different wayspHAll of them can work normally.It uses strong alkali(Such asNaOH)Regenerate.

Perlite resin varietiesPart Four:Weakly basic anion resin

This type of resin contains weakly basic groups,Such as primary amino groups(Also known as a primary amino group)-NH2Secondary amino groups(Secondary amine group)-NHROr tertiary amino groups(Tertiary amino group)-NR2,They can dissociate in waterOH-And it is weakly alkaline.The positively charged groups of this resin can adsorb and combine with anions in the solution,Thus, anion exchange occurs.In most cases, this resin adsorbs entire other acid molecules in the solution.It can only be used under neutral or acidic conditions(Such aspH1～9)Get off work.It is available.Na2CO3,NH4OHRegenerate.

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