What is the difference between cationic adsorbate and anionic polyacrylamide?

The first one—anionic polyacrylamide (AN PAM) contained 30% of the ionizable carboxyl groups whereas the cationic polyacrylamide (CT PAM)—35% of the quaternary amine groups. The average molecular weight of the adsorbate was equal to 13,000 and 7000 kDa, respectively.

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.

What types of polyacrylamides are used in dewatering?

Anionic, cationic, and nonionic polyacrylamides are used as coagulants and flocculants for the solid-liquid separations and enrichment of various minerals depending on the situation or application. The main processes that are used in dewatering include dewatering screens, sedimentation, filtering, and thermal drying.

What is ionic polyacrylamide (PAM)?

These substances, also called soil flocculants, are macromolecular compounds which contribute to the reinforcement of soil structure as a result of its adsorption on the mineral surface. The soil conditioners commonly used in agriculture is ionic polyacrylamide (PAM)—both anionic and cationic.

What is an anionic polyacrylamide?

Anionic polyacrylamides make up the largest portion of the polyacrylamide market. The polymers can be prepared over a wide range of anionic charges and molecular weights (1000 to > 20,000,000 molecular weight). The workhorse comonomer for the production of anionic polyacrylamides is acrylate salts of acrylic acid.