Process for purification of organic sulfonates and novel...

Details Process for purification of organic sulfonates and novel... Process for purification of organic sulfonates and novel...

C - Chemistry, Metallurgy

07

C

C07C 309/30 (2006.01) B01D 67/00 (2006.01) C07C 303/44 (2006.01) C07C 309/10 (2006.01) C07C 309/36 (2006.01)

Patent

CA 2233815

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.

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