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- W2321801298 abstract "The hydrothermal oxidizing of chromite was suggested as the possible new wet metallurgical method of chromium. One gram of chromite sample and 5 ml of solvent was added into the micro-autoclave (12 ml of inner volume) with ball for stirring and induced 100 kg/cm' of 02 gas and then was heated in a revolving furnace at temperatures between 150 to 350°C. Cr (VI) ion in the eluted yellow solution was determined by colorimetric analysis. The extractio ratio of Cr(VI) ion from chromite was 70% under conditions of 350°C, 50 minutes. But at above this temperature, higher extraction ratio of Cr(VI) ion from chromite is expected. Besides, the chromite slag containing Cr(VI) ion of few percents was reduced perfectly under hydrothermal condition, at 350°C, for 80 minutes. And then, it was expected that the hydro- thermal process is appliciable as the harmless wet metallurgy of chromite." @default.
- W2321801298 created "2016-06-24" @default.
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- W2321801298 date "1977-01-01" @default.
- W2321801298 modified "2023-09-24" @default.
- W2321801298 title "Hydrothermal Extraction of Cr(VI) Ion from Chromite and Hydrothermal Innocentization of Chromite Slag" @default.
- W2321801298 doi "https://doi.org/10.1246/nikkashi.1977.433" @default.
- W2321801298 hasPublicationYear "1977" @default.
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