Ionic liquids
AssigneeUniversity of Leicester
InventorsAndrew Peter Abbott, Hadi Mohammad Ali Abood
Life of this patent
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Abstract
There is provided a mixture having a freezing point of up to 100° C. formed by a process comprising the step of contacting: (A) from 1 to 2 equivalents of a compound of formula (I) AlX3 (I) wherein each X independently represents Cl, Br or F; with (B) 1 equivalent of a compound of formula (II) R1—C(O)—N(R2)(R3) (II) wherein R1 to R3 have meanings given in the description. There is also provided further mixtures containing additional components, as well as methods of using the mixtures in various applications, such as for the electroreduction of the mixtures to produce aluminum metal.
Claims12
A mixture having a freezing point of up to 100° C. formed by a process comprising the step of contacting:
- (A) from 1 to 2 equivalents of a compound of formula (I)
- AlX3 (I)
- wherein each X independently represents Cl, Br or F;
- with
- (B) 1 equivalent of a compound of formula (II)
- R1—C(O)—N(R2)(R3) (II)
- wherein:
- R1 represents
- C1-4 alkyl optionally substituted by one or more F atoms,
- —N(H)R4;
- R4 represents H or C1-4 alkyl optionally substituted by one or more F atoms;
- and
- R2 and R3 independently represent
- H,
- C1-6 alkyl optionally substituted by one or more F atoms or aryl.
A mixture formed by a process comprising:
- contacting from 1 to 2 equivalents of a compound of formula (I)
- AlX3 (I)
- with 1 equivalent of a compound of formula (II)
- R1—C(O)—N(R2)(R3) (II)
- to form a mixture;
- wherein:
- each X independently represents Cl, Br or F;
- R1 is C1-4 alkyl optionally substituted by one or more F atoms, or —N(H)R4;
- R4 is H or C1-4 alkyl optionally substituted by one or more F atoms;
- and
- R2 and R3 independently represent H, C1-6 alkyl optionally substituted by one or more F atoms, or aryl;
- and
- contacting the mixture with an additive.
Dependencies are inferred from the claim text.