Patent application number | Description | Published |
20130331603 | Process for Purifying Terephthalic Acid Using Ionic Liquids - Methods of purifying crude or contaminated terephthalic acid using ionic liquids are described. Crude or contaminated terephthalic acid is contacted with a solvent in the absence of an oxidizing agent to form a purified product having at least 30 wt % less 4-carboxybenzaldehyde compared to the crude or contaminated terephthalic acid. The solvent consists essentially of an ionic liquid, optionally an ionic solid or a material capable of forming an ionic salt, and optionally an aqueous solvent. The ionic liquid is formed in situ from at least one ionic liquid precursor. | 12-12-2013 |
20130345482 | Alkylation Process Using Phosphonium-Based Ionic Liquids - A process for making an alkylate is presented. The process includes mixing an isoparaffin stream with an olefin stream in an alkylation reactor. The alkylation reactor includes a catalyst for performing the reaction. The catalyst is an ionic liquid that is a quaternary phosphonium based ionic liquid, and the reaction is performed at or near ambient temperatures. | 12-26-2013 |
20130345483 | Alkylation Process Using Phosphonium-Based Ionic Liquids - A process for making an alkylate is presented. The process includes mixing an isoparaffin stream with an olefin stream in an alkylation reactor. The alkylation reactor includes a catalyst for performing the reaction. The catalyst is an ionic liquid that is a quaternary phosphonium based ionic liquid, and the reaction is performed at or near ambient temperatures. | 12-26-2013 |
20130345484 | Alkylation Process Using Phosphonium-Based Ionic Liquids - A process for making an alkylate is presented. The process includes mixing an isoparaffin stream with an olefin stream in an alkylation reactor. The alkylation reactor includes a catalyst for performing the reaction. The catalyst is an ionic liquid that is a quaternary chloroaluminate based ionic liquid, and the reaction is performed at or near ambient temperatures. | 12-26-2013 |
20140113804 | ASYMMETRIC PHOSPHONIUM HALOALUMINATE IONIC LIQUID COMPOSITIONS - Quaternary phosphonium haloaluminate compounds according to Formula (I): | 04-24-2014 |
20140213435 | PHOSPHONIUM-BASED IONIC LIQUIDS - Quaternary phosphonium haloaluminate compounds according to Formula (I): | 07-31-2014 |
20150210609 | IONIC LIQUID ALKYLATION OF 1-BUTENE TO PRODUCE 2,5-DIMETHYLHEXANE - A process for producing dimethylhexanes (DMH) is provided. The DMH can be used to produce p-xylene. The process involves the alkylation of isobutane and 1-butene using an ionic liquid to produce naphtha that is rich in DMH. The DMH is then converted in high selectivity to xylene, including p-xylene, by dehydrocyclization. | 07-30-2015 |
20150273460 | REGENERATION OF AN ACIDIC CATALYST BY ALKYLATION OF AROMATIC COMPOUNDS - Methods for regenerating deactivated acidic catalyst containing conjunct polymer are described. The deactivated acidic catalyst containing conjunct polymer is contacted with at least one aromatic compound in a regeneration zone under regeneration conditions. The conjunct polymer reacts with the at least one aromatic compound resulting in a regenerated acidic catalyst and at least one aromatic compound alkylated with conjunct polymer. The acidic catalyst is selected from the group consisting of sulfuric acid, hydrofluoric acid, trifluoromethanesulfonic acid, phosphoric acid, boron trifluoride, toluenesulfonic acid, trifluoroacetic acid, and acidic ionic liquids. | 10-01-2015 |
20150274613 | INTEGRATED FLUID CATALYTIC CRACKING AND ALKYLATION PROCESS - An integrated hydrocarbon conversion process is described. The process includes contacting a heavy hydrocarbon feedstock with a hydrocarbon cracking catalyst in a fluidized reactor zone to produce light olefins to form a fluid catalytic cracker (FCC) effluent stream comprising a range of hydrocarbons. The FCC effluent stream is separated to form at least a stream rich in C | 10-01-2015 |
20150274614 | METHOD FOR RECOVERING ENTRAINED IONIC LIQUID FROM AN IONIC LIQUID IMMISCIBLE PHASE - A method for recovering entrained ionic liquid from an immiscible phase containing droplets of ionic liquid is described. The method includes contacting the immiscible phase containing the droplets of ionic liquid with a scrubbing ionic liquid phase in a scrubbing zone. The immiscible phase containing the droplets of ionic liquid has a first level of droplets of ionic liquid. At least a portion of the droplets of ionic liquid are transferred to the scrubbing ionic liquid phase to form a recovered ionic liquid phase comprising the scrubbing ionic liquid and the transferred portion of the droplets of ionic liquid and a second immiscible phase having a second level of droplets of ionic liquid lower than the first level. The second immiscible phase is separated from the recovered ionic liquid phase. | 10-01-2015 |
20150276645 | PROCESS FOR CONTROLLING AN IONIC LIQUID CATALYST REGENERATION USING A CONDUCTIVITY MEASUREMENT - A process in which the conductivity of an ionic liquid catalyst used in a continuous reaction process is measured in order to determine the amount of conjunct polymer associated with the ionic liquid catalyst. The conductivity may be used to control: an amount of spent ionic liquid catalyst passed back to the reaction zone; an amount of spent ionic liquid catalyst passed to a regeneration zone; an amount of spent ionic liquid catalyst removed from the continuous reaction process; an amount of fresh ionic liquid catalyst passed to the reaction zone; an amount of regenerated ionic liquid catalyst passed to the reaction zone; or combinations thereof. | 10-01-2015 |