Method for manufacturing ionic liquid catalysts
AssigneeChevron Phillips Chemical Company LP
InventorsKenneth D. Hope, Donald A. Stern, Donald W. Twomey
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Abstract
A method for manufacturing ionic liquid compositions by use of a two-step process which includes the contacting, under first reaction conditions, an amine compound with a hydrogen halide that is preferably in the gaseous form to provide a first reaction mixture. The first reaction mixture is then contacted, under second reaction conditions, with a metal halide compound to form the ionic liquid end-product.
Claims31
A process comprising:
- contacting under first reaction conditions alkylamine with hydrogen halide gas to form a first reaction mixture;
- and
- thereafter, contacting under second reaction conditions said first reaction mixture with metal halide to form an ionic liquid catalyst.
A process for manufacturing an ionic liquid catalyst, said process comprises the steps of:
- forming a first reaction mixture by mixing with an alkylamine a fluid comprising gaseous hydrogen halide;
- and
- mixing with said first reaction mixture a material comprising metal halide to thereby form a second reaction mixture comprising said ionic liquid catalyst.
A method for manufacturing an ionic liquid catalyst, said method comprises the steps of:
- mixing within a first reaction zone and under first reaction conditions a liquid alkylamine with a first diluent to thereby form a first mixture comprising said first diluent and trimethylamine;
- introducing gaseous hydrogen chloride into said first mixture under the first reaction conditions to thereby cause a first reaction thus forming a first reaction product comprising a salt of alkylamine and hydrogen chloride commingled with said first diluent;
- allowing said first reaction to occur;
- and
- mixing, under second reaction conditions, a metal halide with said first reaction product, to thereby cause a second reaction thus forming a second reaction product comprising an ionic liquid catalyst.
A method for determining the composition of an ionic liquid comprising:
- (a) measuring the specific gravity and molar composition of a plurality of samples of the ionic liquid;
- (b) correlating the specific gravity to the molar composition of the plurality of samples;
- (c) measuring the specific gravity of an additional sample of the ionic liquid;
- and
- (d) determining the molar ratio of the additional sample comparing the specific gravity of the additional sample from step (c) to the correlation from step (b).
Dependencies are inferred from the claim text.