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UPDATED 1 Sept: The EI library in London is temporarily closed to the public, as a precautionary measure in light of the ongoing COVID-19 situation. The Knowledge Service will still be answering email queries via email , or via live chats during working hours (09:15-17:00 GMT). Our e-library is always open for members here: eLibrary , for full-text access to over 200 e-books and millions of articles. Thank you for your patience.
Frontier between adsorption and precipitation of polyacryllic acid on calcium carbonate. C. Geffroy et al. Rev. Inst. Francais Petrole, March-April 1997, 52(2), 183--190.
Details are given of adsorption experiments using a dialysis membrane to separate the solid particles from the solution. It has been established that in some circumstances, depending on the relative amount of calcite, calcium ions and polyelectrolyte, precipitation takes place rather than adsorption. Especially in the case at low polymer concentration---less than 2 g/l. From the results which are presented and discussed, it is concluded that in the presence of divalent ions, the surface binding of the polyelectrolyte results from precipitation rather than an adsorption phenomenon.
Abstract details
Journal title: Revue Institut Francais de Petrole
Keywords: Chemical and physical properties
Subjects: Natural and physical sciences, Chemical sciences, Chemical and petrochemical, Petroleum engineering
