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US 2014/0235873 A1Published application
Process for Producing Ionic Liquids
AssigneeBoulder Ionics Corporation
InventorsRajendra P. Singh, Jerry Lynn Martin, Joseph Carl Poshusta
Life of this patent
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Abstract
The present invention provides a method for producing ionic liquids without the use of a volatile solvent and/or water. In some embodiments, methods of the invention allow a continuous process for producing ionic liquids.
Claims27
A process for producing an ionic liquid of the formula [R1Q]+RF−, said process comprising:
- reacting a compound of the formula Q with a quaternizing agent of the formula R1X in the absence of a volatile solvent under conditions sufficient to produce a quaternary salt of the formula:
- [R1Q]+X−
- reacting said quaternary salt with an acidic form of an ionic liquid counter anion compound of the formula HRF under conditions sufficient to produce said ionic liquid of the formula [R1Q]+RF− and a volatile acid of the formula HX,
- wherein
- Q is an amine, phosphine, or arsine;
- R1 is a quaternizing moiety, such that [R1Q]+ forms an ionic liquid cation;
- X is a leaving group;
- RF is an ionic liquid anion moiety.
5 more elements
A process for producing an ionic liquid of the formula [R1Q1]+R1F−, said process comprising:
- reacting a compound of the formula Q1 with a quaternizing agent of the formula R1X in the absence of a volatile solvent under conditions sufficient to produce a quaternary salt of the formula:
- [R1Q1]+X−
- reacting said quaternary salt with a fluorinated acidic form of an ionic liquid counter anion compound of the formula HR1F under conditions sufficient to produce said ionic liquid of the formula [R1Q]+R1F− and a volatile acid of the formula HX,
- wherein
- Q1 is a tertiary amine, phosphine or arsine compound;
- R1 is a quaternizing moiety, such that [R1Q1]+ forms a quaternary ionic liquid cation;
- X is a leaving group;
- R1F is a fluorinated ionic liquid anion moiety.
5 more elements
An ionic liquid having no more than 100 parts per million by weight of water and no more than 100 parts per million by weight of halide.
Dependencies are inferred from the claim text.