Back to results
US 9,174,915 B2Granted
Extraction towers and processes for using the same
AssigneeExxonMobil Chemical Patents Inc.
InventorCarl R. Beck
Life of this patent
Estimating the term…
Abstract
The disclosure relates to processes and systems utilizing one or more extraction towers in the recovery and recycle of acid catalysts used in the production of carboxylic acids. The carboxylic acids may be neo-acids produced through the hydrocarboxylation of olefins or olefin mixtures.
Claims15
A process comprising:
- producing in one or more reactors at least one neo-acid by carbonylation of olefins utilizing a boron trifluoride catalyst system containing water thereby obtaining a reactor effluent from said one or more reactors comprising a mixture of a neo-acid, and one or more of a catalyst, a catalyst salt, and a complex of a catalyst and a neo-acid;
- passing the reactor effluent through at least one extraction tower;
- contacting at least a portion of the reactor effluent with water;
- separating at least a portion of the neo-acid from the reactor effluent;
- and
- recovering the separated neo-acid;
- wherein the at least one extraction tower comprises two or more phases operating at least two extractions.
4 more elements
Dependencies are inferred from the claim text.