Development of grafted pea protein (PP-g-PAM): An innovative derivative as flocculant towards mineral suspensions

The article demonstrates the synthesis, characterizations and study of a novel graft copolymer as a flocculant for mineral suspensions. The work involved developing a flocculant through the microwave assisted graft copolymerization of pea protein. Standard physico-chemical characterizations viz. int...

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Bibliographic Details
Published in:Industrial crops and products 2024-12, Vol.222, p.119685, Article 119685
Main Authors: Aryan, Ayush, Pal, Pinki, Singh, Smita, Bhoutika, Tanisha, George, Shruthi K., Sinha, Sweta, Pandey, Jay Prakash, Sen, Gautam
Format: Article
Language:English
Subjects:
Flocculation
Graft copolymer
Intrinsic viscosity
Jar test apparatus
Microwave assisted method
Settling test
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Summary:The article demonstrates the synthesis, characterizations and study of a novel graft copolymer as a flocculant for mineral suspensions. The work involved developing a flocculant through the microwave assisted graft copolymerization of pea protein. Standard physico-chemical characterizations viz. intrinsic viscosity, FTIR, FESEM, TGA, DSC and elemental analysis of the novel material have been performed to confirm the intended grafting. The graft copolymer grade having the highest intrinsic viscosity demonstrated the highest flocculation performance, achieving a flocculation efficacy of 94 % in iron ore, 53 % in coal fine and 69 % in kaolin suspensions. These results are consistent with the theories of flocculation, viz. Singh’s easy approachability model and Brostow, Singh, and Pal's model of flocculation. [Display omitted] •Pea protein was functionally modified by grafting through the microwave assisted technique.•The increased branching units post grafting facilitated the flocculation efficacy.•The modified biomaterial exhibited 94 % flocculation efficacy in iron ore, 53 % in coal fine and 69 % in kaolin suspensions.
ISSN:0926-6690
DOI:10.1016/j.indcrop.2024.119685