What is cationic polyacrylamide (C-PAM)?

Cationic polyacrylamide (C-PAM), copolymerized from acrylamide and substituted acrylate or acrylamide segments, offers an alternative to PHPA and exhibits high stability under high TDS conditions 28.

Does polyacrylamide behave at oxide-aqueous solution interfaces?

Acrylamide-based polymers such as polyacrylamide (PAM) and their derivatives are widely used as additives to enhance solid-liquid separation in the mineral processing industry. Thus, an investigation of polyacrylamide behaviour at oxide-aqueous solution interfaces is of vital importance.

Does anionic polyacrylamide adsorb more strongly to iron oxide at low pH?

Anionic polyacrylamide adsorbed more strongly to iron oxide at low pH. Anionic polyacrylamide adsorption exceeded that of neutral polyacrylamide at low pH. Acrylamide-based polymers such as polyacrylamide (PAM) and their derivatives are widely used as additives to enhance solid-liquid separation in the mineral processing industry.

Can polyacrylamide adsorption be quantified at different pH values?

In this work, the adsorption of different molecular weight polyacrylamides onto iron oxides and silica was quantified at different pH values. Mineral oxides were characterised by zeta potential, particle size distribution, scanning electron microscopy images and X-ray diffraction.

Does cationic polyacrylamide have effective flocculant behaviour?

They concluded that cationic and anionic polyacrylamide showed effective flocculant behaviour at pH 6 and pH 11 respectively. Leet and Somasundaran studied adsorption of neutral polyacrylamide (MW 700 kg/mol) on a series of mineral oxides including Fe 2 O 3, Cr 2 O 3, Al 2 O 3, TiO 2, SnO 2 and SiO 2 (Leet and Somasundaran, 1989).

Can polyacrylamide contribute to residual polymer formation?

Common methods for treating PAM are membrane filtration 25, thermal distillation 24, oxidation treatment 26, and biological treatments 27. However, addressing the challenge posed by PAM remains a pressing issue within the industry. Fig. 1: Polyacrylamide and its fragments may contribute to residual polymer formation.