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Microwave assisted synthesis of guar gum based biopolymeric macromolecule optimized as a flocculant for mineral ore processing
International Journal of Biological Macromolecules ( IF 7.7 ) Pub Date : 2022-08-09 , DOI: 10.1016/j.ijbiomac.2022.08.042
Smita Singh 1 , J P Pandey 1 , Gautam Sen 1
Affiliation  

The research endeavour to synthesize a novel, non-toxic, eco-friendly guar gum based biopolymeric macromolecule, [2-(methacryloyloxy) ethyl] trimethyl ammonium chloride grafted guar gum (GG-g-P (MAETMAC)) that has been optimized as a flocculant for mineral ore processing. The synthesis was performed using non-radiation and microwave assisted technique to compare and ensure the superiority of the latter. The intended grafting of monomer[2-(methacryloyloxy) ethyl] trimethyl ammonium chloride on to the biological macromolecule (guar gum) was confirmed through standard physico-chemical characterization techniques namely X-ray diffraction (XRD), scanning electron microscopy (SEM), thermal gravimetric analysis (TGA), Fourier transform infrared (FTIR) spectroscopy, ultraviolet-visible (UV–visible) spectroscopy, intrinsic viscosity study, etc. The flocculation efficacy of the synthesized novel graft copolymer was thoroughly investigated in kaolin, coal fine, and iron ore suspensions. We have explored a graft copolymer, [2-(methacryloyloxy) ethyl] trimethyl ammonium chloride grafted guar gum that has not been studied yet to the best of our knowledge. To establish the superiority of the synthesized biomaterial, the flocculation study revealed that the best grade of the synthesized novel graft copolymer showed flocculation efficacy of 90 % in kaolin, 69 % in Iron ore, and 29 % in coal fine suspensions which was significantly higher than using alum as a coagulant which provided 36 % efficacy in kaolin, 29 % in iron ore and 10 % in coal fine suspensions.



中文翻译:

微波辅助合成基于瓜尔胶的生物聚合物大分子优化为矿物矿石加工的絮凝剂

该研究致力于合成一种新型、无毒、环保的瓜尔豆胶基生物聚合物大分子,[2-(甲基丙烯酰氧基)乙基]三甲基氯化铵接枝瓜尔豆胶 (GG-gP (MAETMAC)),已被优化为絮凝剂用于矿石加工。该合成采用非辐射和微波辅助技术进行,以比较并确保后者的优越性。通过标准物理化学表征技术即 X 射线衍射 (XRD)、扫描电子显微镜 (SEM)、热重分析(TGA)、傅里叶变换红外(FTIR)光谱、紫外-可见(UV-可见)光谱、特性粘度研究等。在高岭土、煤粉和铁矿石悬浮液中彻底研究了合成的新型接枝共聚物的絮凝效果。我们已经探索了一种接枝共聚物,[2-(甲基丙烯酰氧基)乙基]三甲基氯化铵接枝瓜尔豆胶,据我们所知,它还没有被研究过。为了确定合成生物材料的优越性,絮凝研究表明,合成的新型接枝共聚物的最佳等级在高岭土中的絮凝效率为 90%,在铁矿石中为 69%,在煤细悬浮液中为 29%,显着高于使用明矾作为混凝剂,在高岭土中提供 36% 的效果,在铁矿石中提供 29% 的效果,在煤粉悬浮液中提供 10% 的效果。我们已经探索了一种接枝共聚物,[2-(甲基丙烯酰氧基)乙基]三甲基氯化铵接枝瓜尔豆胶,据我们所知,它还没有被研究过。为了确定合成生物材料的优越性,絮凝研究表明,合成的新型接枝共聚物的最佳等级在高岭土中的絮凝效率为 90%,在铁矿石中为 69%,在煤细悬浮液中为 29%,显着高于使用明矾作为混凝剂,在高岭土中提供 36% 的效果,在铁矿石中提供 29% 的效果,在煤粉悬浮液中提供 10% 的效果。我们已经探索了一种接枝共聚物,[2-(甲基丙烯酰氧基)乙基]三甲基氯化铵接枝瓜尔豆胶,据我们所知,它还没有被研究过。为了确定合成生物材料的优越性,絮凝研究表明,合成的新型接枝共聚物的最佳等级在高岭土中的絮凝效率为 90%,在铁矿石中为 69%,在煤细悬浮液中为 29%,显着高于使用明矾作为混凝剂,在高岭土中提供 36% 的效果,在铁矿石中提供 29% 的效果,在煤粉悬浮液中提供 10% 的效果。

更新日期:2022-08-09
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