Microwave irradiation coupled with zero-valent iron that enhances the composite geopolymerization of chromite ore processing residue and its mechanisms

Huang, Tao; Cao, Zhenxing; Fan, Xinchuan; Jin, Junxun; Yang, Chao; Liu, Longfei; Zhang, Shuwen

doi:10.1007/s11356-021-13072-9

Cited by 6 publications

(1 citation statement)

References 53 publications

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“…In the field of polymer organic chemistry, extensive research has shown that microwaves can assist in polymer synthesis, extraction, and curing applications [6][7][8]. Studies have shown that microwave electromagnetic oscillations can break chemical bonds to convert macromolecular compounds into lower molecular compounds, which shortens the reaction time and enhances energy efficiency.…”

Section: Introductionmentioning

confidence: 99%

Effect of non-thermal effects in microwave heating on the rheology and chemical properties of petroleum asphalt

Wang,

Gong,

Song

et al. 2024

Mater. Res. Express

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This study systematically analyses the rheological properties of typical petroleum asphalt heated by microwaves at different temperatures through viscosity, penetration, dynamic shear, low-temperature bending, and other rheological tests. The results show that the non-thermal effect of microwaves enhances the fluidity of petroleum asphalt in the high-temperature viscous flow state, becomes softer in the medium-temperature viscoelastic state, and becomes hard and brittle in the low-temperature glassy state. The effect of microwaves also causes some specific changes in the properties of bitumen, including softening point and glass transition temperature in the opposite direction, as well as a large difference in the response of bitumen of different viscosities. The chemical changes in microwave-heated bitumen were analyzed using component tests and microscopic observation. It was found that microwave heating homogenized and dispersed the asphaltene aggregates into small particles, with the heavy components significantly reduced and the light components increased.

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Section: Introductionmentioning

confidence: 99%