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- W2351095985 abstract "Shanxi anthracite has been subjected to oxygen-oxidation at 260℃ in all aqueous solution of potassium hydroxide to produce water-soluble coal acids(CA), then the water-soluble coal acids have been selectively decarboxylated in the mixed medium of KHSO4 and H2SO4 to produce crude pyromellitic acid(PA).The study has obtained the best decarboxylated conditions: reaction temperature 330℃; CA:H2SO4:KHSO4=1:2:5 and the reaction time is 1.5h. Pure PA is obtained by solvent recrystallization method and the best solvent was 2-pentanone." @default.
- W2351095985 created "2016-06-24" @default.
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- W2351095985 date "2013-01-01" @default.
- W2351095985 modified "2023-09-25" @default.
- W2351095985 title "Alkali Oxygen and Selectively Decarboxylated of Anthracite to Prepare Pyromellitic Acid" @default.
- W2351095985 hasPublicationYear "2013" @default.
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