Study on Electrostatic Separation of Quinoline Insolubles from Coal Tar Pitch

Wang, Hong; Wolfe, Eric; Martínez, Manuel A.; Lowe, Tracie

doi:10.2172/1960688

Cited by 1 publication

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“…19 The QI component, i.e., α resin, is a heavy component of HCTP, with an average molecular weight of 1800−2600. 20 The mass and yield of the four group components are presented in Table 3. It can be seen that the yield of the four group components after extraction with three organic solvents is in the order HI-TS > HS > TI-QS > QI.…”

Section: Content Of Metallic Elements In Hctpmentioning

confidence: 99%

Distribution of Metallic Elements in Four Group Components of High-Temperature Coal Tar Pitch

et al. 2023

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The metallic elements in high-temperature coal tar pitch (HCTP) will affect the properties of carbon materials produced from the HCTP. The study on the metallic elements in HCTP is essential for the quality improvement of its derived carbon materials. In this paper, the content of 15 metallic elements in HCTP and its four group components, including n-heptanesoluble substance (HS), n-heptane-insoluble−toluene-soluble substance (HI-TS), toluene-insoluble−quinoline-soluble substance (TI-QS), and quinoline-insoluble substance (QI), was determined. The results show that the content of Na, Ca, Fe, Mg, Zn, K, Pb, and Al is more than 100 ppm and is much higher than that of other metallic elements. The content of Ni, V, Cr, Mo, Sb, Cu, and Mn ranges from 0 to 50 ppm. By mass calculation of the contents of four group components in HCTP, it can be concluded that Na and Fe are randomly distributed in the group components. Al, Zn, Pb, V, and Mn are mainly distributed in the inorganic form in the QI component. Ca, Mg, K, Ni, Cr, Mo, Sb, and Cu are mainly distributed in the small molecular group components such as HS and HI-TS.

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Section: Content Of Metallic Elements In Hctpmentioning

confidence: 99%