Recovery and Reuse of a Surfactant in Ion Flotation

Grieves, Robert B.; Sickles, J.E.; Ghosal, J. K.; Bhattacharyya, Dibakar

doi:10.1080/01496396908052268

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1972

1979

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Cited by 4 publications

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Foam separation and precipitate flotation. The problem of surfactant recovery and reuse

Charewicz

Strzelbicki

1979

J. Chem. Technol. Biotechnol.

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An experimental investigation is presented on the recovery of cationic [dimethyl‐benzyldodecylammonium bromide (DMBDA‐Br)] and anionic [sodium dodecyl‐benzylsulphonate (Na‐DBS)] surfactants from foam separation and precipitate flotation concentrates. DMBDA‐Br was recovered and reused fr m the concentrate of foam separation of perrhenates with recovery of over 90% by applying coacervation by potassium thiocyanate. Na‐DBS was recovered and reused from the concentrate of precipitate flotation of copper hydroxide with recovery over 90% by applying precipitation with dodecylbenzylsulphonic acid from solution of concentrate dissolved in sulphuric acid at pH range from 1.0 to 2.5. Recovered surfactants were found efficient for subsequent flotation processes.

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