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- W2318380511 abstract "On the method for solvent extraction of liquefaction product, ultrasonic and soxhlet apparatus have been tested to compare the yield, reproducibility and the property of the extract.Extractions of n-hexane insolubles, which were produced from the liquefaction of Taiheiyo coal and Yallourn coal at 440°C under initial hydrogen pressure of 85 kg/cm2·G with tetralin/coal weight ratio of 3 and reaction time of 30min, were carried out with benzene and THF. Little difference in total conversion (benzene conversion plus THF conversion) between ultrasonic and soxhlet extractions was observed, but the conversion from benzene extraction revealed lower level in soxhlet method combined with both electric heater and hot water bath than in ultrasonic method.It was considered to be due to the low diffusion efficiency of benzene into sample by the use of soxhlet apparatus. Same conclusion was drawn from the result on the property of extract. Ultrasonic extraction was, therefore, considered to be a new convenient method to evaluate the accurate conversion using small amount of sample." @default.
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- W2318380511 date "1987-01-01" @default.
- W2318380511 modified "2023-09-26" @default.
- W2318380511 title "Study on the conventional method for the solvent extraction of liquefaction products." @default.
- W2318380511 doi "https://doi.org/10.3775/jie.66.373" @default.
- W2318380511 hasPublicationYear "1987" @default.
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