PREPARATION OF TRIHALIDE ANION EXCHANGE RESINS, REVERSIBLE ADSORPTION AND CHLORINATION REACTIONS USING ION EXCHANGE RESINS

摘要

A method of preparing a trihalide resin, where a trihalide ion solution is contacted with a styrene divinylbenzene polymer resin having polymer bonded -ER3+X− groups where E is N, P, or As, R is a hydrocarbon group and X is Cl, Br, or I. The trihalide ion can be Cl3−, Br3− or I3−. A trichloride resin and a method of preparing the trichloride resin, where a styrene divinylbenzene polymer resin having polymer bonded -ER3+cL− groups is contacted with chlorine. The trichloride resin can be used as a solid equivalent of chlorine gas. Formation of the styrene divinylbenzene resin comprising -ER3+Cl− units can be used to scavenge chlorine from a gas or liquid to form the styrene divinylbenzene resin comprising -ER3+Cl3− units.

主权项

1. A method of preparing a trihalide resin, comprising:
providing a solution comprising trihalide ion, wherein the trihalide ion is trichloride ion, tribromide ion, or triiodide ion; providing a styrene divinylbenzene polymer resin having polymer bonded -ER3+X− groups where R is a hydrocarbon group, E=N, P, or As, and X is Cl, Br, or I; and contacting the styrene divinylbenzene polymer resin with the solution comprising trihalide ion to form a trihalide resin, wherein the halide of the trihalide ion is greater than or equal to the atomic mass of the X− groups.