PROCESS FOR TREATING COAL TAR OR COAL TAR PITCH
process for treating coal tar or coal tar pitch (57) A process for obtaining pitch containing a substantially pure secondary QI component alone, which comprises centrifuging …
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process for treating coal tar or coal tar pitch (57) A process for obtaining pitch containing a substantially pure secondary QI component alone, which comprises centrifuging …
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WO1985001057A1 - Process for treating coal tar or coal tar pitch - Google Patents ... Process for treating coal tar or coal tar pitch Download PDF Info Publication number WO1985001057A1. WO1985001057A1 PCT/JP1984/000415 JP8400415W WO8501057A1 WO 1985001057 A1 WO1985001057 A1 WO 1985001057A1 JP 8400415 W JP8400415 W JP 8400415W WO …
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Coal tar is a byproduct of the coking, liquefaction, or gasification of coal. Coal-tar pitch is the residue that remains after the distillation of coal tar. Coal tar and coal-tar pitch are used in coal-tar-based sealcoat products, although …
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The capabilities of different methods for the thermal and thermochemical processing of coals with the production of pitch-like products are considered.
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WO1985001057A1 PCT/JP1984/000415 JP8400415W WO8501057A1 WO 1985001057 A1 WO1985001057 A1 WO 1985001057A1 JP 8400415 W JP8400415 W JP 8400415W WO 8501057 A1 WO8501057 A1 WO 8501057A1 Authority WO WIPO (PCT) Prior art keywords tar temperature call pitch centrifugation Prior art date Application number …
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Zero QI impregnated pitch from coal tar (TP-1, TP-2, and TP-3) can also be made using solvent extraction or sedimentation process, which may not be cost-effective. Depending …
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Currently, improved coal-based pitches are in the process of being developed from tar fractions, such as anthracene-oil with no QI, with the aim of obtaining graphitic materials. This paper …
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Using coal tar pitch as a fuel is an effective way of comprehensive utilization of resources. However, coal tar pitch is difficult to be burned completely resulting in environmental pollution …
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coal tar or coal tar pitch as a result of thermal treatment is called mesophase or secondary Ql. The mesophase content of coal tar or coal tar pitch is determined by a test method designated …
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This method requires the distillation of the supernatant liquid after removing the primary QI components in order to get tar and/or pitch as useful component and must recover the oil …
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Pitch substantially free from primary and secondary QI components and solids comprising secondary QI components are prepared by centrifuging coal tar or coal tar pitch at a high temperature, heat-treating the separated supernatant liquid and centrifuging again the liquid at …
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Tar is a dark, thick liquid obtained from the distillation of organic materials, used in road surfacing and roofing, while pitch is a viscous substance derived from tar or plants, used in waterproofing and sealing.
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