Production of Novel Ionic Polyacrylamide Based Polymer for the Flocculation of Fine Sulphide Mineral Ores and Tailings

Oscar M. Kazembe*, Itai Mutadza**
*-** Harare Institute of Technology, Zimbabwe.
Periodicity:July - September'2021


Exploration of precious metals in contact with sulphide ores has gained popularity with the exhaustion of the minerals in high grade ore regions. The processing of the sulphide ores via convectional metallurgical practices come with challenges in stages demanding high settling rates of solid suspensions, and hence the research on the production of novel ionic polyacrylamide to facilitate higher settling rates of the sulphide solid suspensions during flocculation and disposal of tailings. This involves the synthesis of aluminium hydroxide colloids with novel ionic properties through the dissolution-precipitation route of Al(OH)3 microagglomerates. Subsequent polymerization of acrylamide monomer was then done in the presence of the colloidal suspension to produce novel ionic Al-PAM. The molecular weight of the synthesized polymer was determined using intrinsic viscosity, with a peak of 16.19×106 gmol-1 obtained at a concentration of 30%. The Degree - of Anionicity (DA) was found to be 56.86% determined using peak values of the -COO and -CO groups from the Fourier Transform Infrared Spectrum (FTIR). Samples of sulphide tailings were then used to evaluate the suitability of the novel Al-PAM in increasing the settling rates during flocculation.


Al-PAM, Sulphide, Polymerization, Flocculation, Tailings.

How to Cite this Article?

Kazembe, O. M., and Mutadza, I. (2021). Production of Novel Ionic Polyacrylamide Based Polymer for the Flocculation of Fine Sulphide Mineral Ores and Tailings. i-manager's Journal on Material Science , 9(2), 1-11.


[1]. Arinaitwe, E., & Pawlik, M. (2009). A method for measuring the degree of anionicity of polyacrylamidebased flocculants. International Journal of Mineral Processing, 91(1-2), 50-54. pro.2008.12.002
[2]. Bio-Rad. (2020). Introduction to Polyacrylamide Gels. Retrieved from ns-technologies/introduction-polyacrylamide-gels?ID= LUSPBRM5B
[3]. Chen, M. (2013). Fundamental Properties of Colloidal Unimolecular Polymer Particles (Doctoral). Missouri University of Science and Technology. Retrieved from
[4]. Eniola, J. O., Kumar, R., Al-Rashdi, A. A., Ansari, M. O., & Barakat, M. A. (2019). Fabrication of novel Al(OH)3 /CuMnAl-layered double hydroxide for detoxification of organic contaminants from aqueous solution. ACS Omega, 4(19), 18268-18278. 84
[5]. González-Gómez, M. A., Belderbos, S., Yañez-Vilar, S., Piñeiro, Y., Cleeren, F., Bormans, G., Deroose, C. M., Gsell, W., Himmelreich, U., & Rivas, J. (2019). Development of superparamagnetic nanoparticles coated with polyacrylic acid and aluminum hydroxide as an efficient contrast agent for multimodal imaging. Nanomaterials, 9(11), 1626.
[6]. Hansora, D., & Pachauri, R. D. (2013). A Facile Route for Industrial Manufacturing Process of Poly (Acryl Amide). (1st Ed). Saarbrucken: LAP LAMBERT Academic Publishing, 17- 28.
[7]. Ikumapayi, F. K. (2010). Flotation Chemistry of Complex Sulphide Ores. Licentiate. Lulea University of Technology. Retrieved from 2:999801/FULLTEXT01.pdf
[8]. Khatibi, S. (2016). Studies on Flocculation of Fine Mineral Tailings Using Novel Polyacrylamide Based Polymer (Masters). Missouri University of Science and Technology.
[9]. Locmelis, M., Melcher, F., & Oberthür, T. (2010). Platinum-group element distribution in the oxidized main sulfide zone, Great Dyke, Zimbabwe. Mineralium Deposita, 45(1), 93-109.
[10]. Manono, M., Corin, K., & Wiese, J. (2019). The effect of the ionic strength of process water on the interaction of talc and CMC: Implications of recirculated water on floatable gangue depression. Minerals, 9(4), 231. https://
[11]. Martinovic, J. (2005). Investigation of the surface properties of gangue minerals in PGM bearing ores (Master's thesis, University of Cape Town). Retrieved from
[12]. Metallon Corporation, (2020). Metallon invests, partners and operates projects across the natural resources and infrastructure sectors. Retrieved from http://
[13]. Mines and Minerals Act, (2018). Mineral Potential Procedures & Requirements of Acquiring Licenses and Permits in terms of the Mines and Minerals Act, 21(5), pp.2.
[14]. Mohsin, M. (2016). Polyacrylamide for wastewater treatment. In 6th TRC-JCCP/Idemitsu International Symposium, Takreer Research Centre, Abu Dhabi, UAE.
[15]. Oberthür, T. (2018). The fate of platinum-group minerals in the exogenic environment—From sulfide ores via oxidized ores into placers: Case studies bushveld complex, South Africa, and Great Dyke, Zimbabwe. Minerals, 8(12), 581.
[16]. Oberthür, T., Melcher, F., Buchholz, P., & Locmelis, M. (2013). The oxidized ores of the main sulphide zone, Great Dyke, Zimbabwe: turning resources into minable reservesmineralogy is the key. Journal of the Southern African Institute of Mining and Metallurgy, 113(3), 191-201.
[17]. Öhlander, B., Chatwin, T., & Alakangas, L. (2012). Management of sulfide-bearing waste, a challenge for the mining industry. Minerals, 2(1), 1-10. 3390/min2010001
[18]. Shatat, R. S., Niazi, S. K., & Ariffin, A. (2017). Synthesis and Characterization of Different Molecular Weights Polyacrylamide. IOSR Journal of Applied Chemistry, 10(04), 67-73.
[19]. Siyam, T. (2012). Development of acrylamide polymers for the treatment of waste water. Designed Monomers and Polymers, 4(2), 107-168. 1163/156855500300203377
[20]. Xiong, B., Loss, R. D., Shields, D., Pawlik, T., Hochreiter, R., Zydney, A. L., & Kumar, M. (2018). Polyacrylamide degradation and its implications in environmental systems. NPJ Clean Water, 1(1), 1-9. 018-0016-8
[21]. Yu, B., Tian, Z., Xiong, J., & Xiang, L. (2013). Synthesis of Al (OH)3 Nanostructures from Al (OH)3 Microagglomerates via Dissolution-Precipitation Route. Journal of Nanomaterials, 1-6.
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