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

Autor:	Jerzy Strzelbicki, Witold A. Charewicz
Rok vydání:	2007
Předmět:	Chromatography Coacervate Precipitation (chemistry) Sodium General Engineering Cationic polymerization chemistry.chemical_element General Medicine Foam separation chemistry.chemical_compound Pulmonary surfactant chemistry Chemical engineering Bromide Potassium thiocyanate
Zdroj:	Journal of Chemical Technology and Biotechnology. 29:149-153
ISSN:	1935-181X 0142-0356
DOI:	10.1002/jctb.503290305
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f6be2704946f7d91b13e4201c35fd9a6 https://doi.org/10.1002/jctb.503290305 Zobrazit plný text záznamu