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- W2333670078 abstract "This paper described about the selective recovery of anatase concentrate and hematite concentrate from ilmenite concentrate. The ilmenite concentrate was dry ground to -200 mesh with pebble ball mill. After coal and salt, coal and ferric chloride and coal were mixed to the ilmenite concentrate, those were made pellets. The pellets were roasted with reduction gases generated in situ from the coal admixed the ilmenite concentrate. After that, the roasted pellets were wet ground to -200 mesh with porcelain mortar and leached with 6.0 mol/dm3 of H2SO4 for 15 hours at 97°C. Anatase and hematite concentrate were collected from the leach liquor by two processes. One process was the collection of anatase concentrate from the leach liquor. Another process was the collection of hematite concentrate from filtrate of anatase concentrate that was collected. In the former process, Ti4+ ions in the leach liquor were reduced to Ti3+ by keeping to ORP=-180--200 mV and pH=0.6-0.7 with metallic magnesium and then anatase concentrate of 52.3%Ti was obtained with 93% of recovery by being oxidized for 2 hours at 97°C. In the latter process, Fe3+ ions in filtrate that collected Anatase concentrate were reducd to fe2+ by keeping to ORP=-180--200 mV with metallic iron. After that, in order to collect hematite concentrate, using ozone as oxidant, those ions were oxidized by keeping to ORP=+450-+500 mV and pH=3.20-3.30 and hematite concentrate of 70%Fe was obtained with 99% or more of recovery." @default.
- W2333670078 created "2016-06-24" @default.
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- W2333670078 date "2002-01-01" @default.
- W2333670078 modified "2023-10-04" @default.
- W2333670078 title "Recovery of Titanium Oxide and Iron Oxide from Ilmenite Concentrate." @default.
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- W2333670078 doi "https://doi.org/10.4144/rpsj1986.49.3" @default.
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