Method and plant for separation of synthetic water soluble...

Details Method and plant for separation of synthetic water soluble... Method and plant for separation of synthetic water soluble...

B - Operations, Transporting

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B01D 61/02 (2006.01) B01D 61/14 (2006.01) B01D 61/58 (2006.01) B01J 19/24 (2006.01) C08G 12/00 (2006.01) C08G 12/12 (2006.01)

Patent

CA 1326637

Abstract Aqueous solutions of water soluble synthetic resins, such as urea-formaldehyde resins, are charged to an ultra- filtration membrane unit for separation into a concentrate solution and a permeate solution. The permeate solution is recirculated to a polymeization reactor, preferably after first having been subjected to reverse osmosis for upgrading of the permeate. A plant for production and separ- ation of synthetic water soluble resins comprises a polymer- ization reactor and an ultrafiltration membrane unit whereby the permeate outlet of the ultrafiltration unit is connected with the polymerization reactor, preferably via a reverse osmosis unit.

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