Storage medium for storing hydrogen chloride and method for separating and storing hydrogen chloride hcl from hcl containing gas

A method for separating and storing hydrogen chloride HCl from HCl containing gas, in particular HCl containing process gas, by contacting the HCl containing gas with at least one ionic compound of general formulae (II)

• Wherein R1, R2, R3 being independent from each other an alkyl moiety selected from the group of methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl and sec-butyl, preferably methyl, ethyl, n-propyl,
• Wherein at least one of the moieties R1, R2, R3 differs from each of the others moieties R1, R2, R3,
• Wherein a, b, c are independently from each other 0, 1, 2 or 3, wherein the sum of a+b+c always has to be 4;
• Wherein the hydrogen chloride HCl from the HCl containing gas is bound by the at least one ionic compound of general formulae (II) thereby providing the ionic compound of general formulae (I)
• Wherein R1, R2, R3 being independent from each other an alkyl moiety selected from the group of methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl and sec-butyl, preferably methyl, ethyl, n-propyl;
• Wherein at least one of the moieties R1, R2, R3 differs from each of the others moieties R1, R2, R3;
• Wherein a, b, c are independently from each other 0, 1, 2 or 3, wherein the sum of a+b+c always has to be 4;
• Wherein n>=1, preferably n=1-6, more preferably n=1, 2, 3, 4.