Process for purification of organic sulfonates and novel product

摘要

A process for producing a low sulfate organic sulfonate/sulfate aqueous solution from a soluble sulfate containing organic sulfonate/sulfate which comprises forming an aqueous solution of organic sulfonate/sulfate; and passing the aqueous solution of the organic sulfonate/sulfate containing the soluble sulfate over a nanofiltration zone at an elevated pressure to form a retentate with a reduced sulfate content and a permeate containing the soluble sulfate and organic material.