Storage medium and method for separating, storing and transporting chlorine from chlorine-containing gases

A process for the reversible storage of chlorine from chlorine-containing gas in a storage medium, the process comprising:

• contacting chlorine-containing gas with a liquid storage medium in a first step to form a loaded storage medium, the liquid storage medium comprising an ionic compound (I) having the formula
• N—R1mR2nR3o+Clr− (I);
• wherein the loaded storage medium comprises chlorine from the chlorine- containing gas in an ionic compound (III) having the formula
• N—R1mR2nR3o+Cl(r+2)− (III);
• wherein each of R1, R2 and R3 independently comprise an alkyl radical selected from the following group:
• methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, and 2-methylpropyl;
• wherein R1, R2, and R3 collectively comprise more than one type of alkyl radical:
• wherein m is an integer in a range of 0 to 3, n is an integer in a range of 0 to 3, o is an integer in a range of 0 to 3, and wherein a sum consisting of m, n, and o is 4;
• and
• wherein r is an odd number in a range of 1 to 7, and wherein s is an odd number in a range of 1 to 7;
• removing chlorine from the loaded storage medium by increasing a temperature of the storage medium and/or lowering a partial pressure above the storage medium, thereby discharging chlorine.