US 2012/0035394 A1Published application

Process for the recovery of betaines from electrodialysis waste streams

AssigneeLonza Ltd.

InventorsMarkus Bicker, Miguel Angel Caraucan Davila

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Abstract

The present invention discloses a process for the recovery of betaines from electrodialysis (ED) waste streams, whereby said waste streams are treated with a pressure driven membrane process.

Claims14

Dependent claims

A process for the recovery of betaines from electrodialysis (ED) waste streams from betaine production processes, whereby said waste streams are treated with a pressure driven membrane process.

Dependencies are inferred from the claim text.

Facts

Application: 13/147,902Filed 3 Feb 2010
Priority: EP 09001502.54 Feb 2009
Published: 9 Feb 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification21 codes

B01D 61/58
Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary…
B01D 61/422
Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization: electrodialysis
B01D 61/44
Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization: ion-selective electrodialysis
C02F 1/44
Treatment of water, waste water, or sewage: by dialysis, osmosis or reverse osmosis

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US 9,415,346 B2Related patent
US 2012/0035394 A1This patent

From the US filing history. Foreign family members aren’t listed.

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