1 strong anion exchange resin: mainly containing reaction based strong functional groups such as ammonium salt with tetrahedral N+ (CH3) 3, in the form of hydrogen and oxygen, N+ (CH3) 3OH- hydroxide ion can be quickly released, in exchange, the exchange of strong anion exchange resin can remove all anions and.
Such as sulfonic SO3H, easy dissociation of H+ in solution, it has strong acidity. The resin after dissociation and negative groups, such as body containing SO3, adsorption combined with other cations in solution. These two reactions make the H+ in the resin exchange with the cations in the solution. Strong dissociation ability of strong acid resin can be dissociated in acid or alkaline solution and can be produced by ion exchange.
After using for a period of time, the resin must be regenerated, that is, the ion exchange reaction is carried out in the opposite direction by using the chemical drugs, so that the functional groups of the resin are returned to the original state, so that the functional groups of the resin are used again. Such as the cationic resin is regenerated with acid, generally use hydrochloric acid cleaning with the ratio of 1:10 after dilution, the resin adsorption of cation release, then combined with H+ to restore the original composition