B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
53/375, 362/45
B01D 11/04 (2006.01) C02F 1/26 (2006.01) C02F 1/52 (2006.01)
Patent
CA 1108320
Abstract: The invention relates to a method wherein dissolved materials are re- moved from an aqu? solution by means Or a liquid extraction compris- ing an extraction step and a re- -extraction step, the essential features Or the method being that the extraction step is performed in the presence of surfactants and that the surfactants are removed in connection eith the re-extraction step.
301174
Reinhardt Hans
Troeng Bengt T.
Fetherstonhaugh & Co.
Svenska Rayon Aktiebolaget
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