Process for quaternary ammonium bisulfates
AssigneeXerox Corporation
InventorsGeorge Liebermann, H. Bruce Goodbrand, John L. Haack, John Abate
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Abstract
A process for the preparation of a quaternary ammonium bisulfate which comprises the reaction of a quaternary ammonium alkylsulfate with sulfuric acid in a solvent mixture comprised of water and isopropyl alcohol, followed by the recovery of the solid quaternary ammonium bisulfate by crystallization from the reaction mixture.
Claims11
A process for the preparation of a quaternary ammonium bisulfate which consists essentially of the reaction of a quaternary ammonium alkylsulfate with sulfuric acid in solvent mixture comprised of water and isopropyl alcohol, wherein the isopropyl alcohol is present in an amount of about 80 weight percent, and the water is present in an amount of 20 weight percent based on the total weight of the solvent mixture, followed by the recovery of the solid quaternary ammonium bisulfate by crystallization from the reaction mixture.
Dependencies are inferred from the claim text.