About: Recovery of pigment-quality magnetite from jarosite precipitate     Goto   Sponge   NotDistinct   Permalink

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Description
  • Sodium and ammonium jarosite precipitated from the sulfuric acid leaching of deep-sea nodules were converted into pigment-quality magnetite by alkali decomposition of jarosite using sodium hydroxide or ammonia solutions at 60 °C and subsequent reaction with FeSO4 at 95 °C. It was found that the base-strength of alkali solutions affected the kinetics of conversion reactions and the morphology of solid phase. The main impurities in jarosite precipitates such as Mn, Cu and Ni were reported into the final products. The sulfur-free magnetite products with the same chroma difference (Cab*) with the same chroma difference (Hab*) as commercial pigments Bayferrox were obtained.
  • Sodium and ammonium jarosite precipitated from the sulfuric acid leaching of deep-sea nodules were converted into pigment-quality magnetite by alkali decomposition of jarosite using sodium hydroxide or ammonia solutions at 60 °C and subsequent reaction with FeSO4 at 95 °C. It was found that the base-strength of alkali solutions affected the kinetics of conversion reactions and the morphology of solid phase. The main impurities in jarosite precipitates such as Mn, Cu and Ni were reported into the final products. The sulfur-free magnetite products with the same chroma difference (Cab*) with the same chroma difference (Hab*) as commercial pigments Bayferrox were obtained. (en)
Title
  • Recovery of pigment-quality magnetite from jarosite precipitate
  • Recovery of pigment-quality magnetite from jarosite precipitate (en)
skos:prefLabel
  • Recovery of pigment-quality magnetite from jarosite precipitate
  • Recovery of pigment-quality magnetite from jarosite precipitate (en)
skos:notation
  • RIV/60461373:22310/10:00023109!RIV11-MSM-22310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • S, Z(MSM6046137302)
http://linked.open...iv/cisloPeriodika
  • 1
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 284236
http://linked.open...ai/riv/idVysledku
  • RIV/60461373:22310/10:00023109
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Deep-sea nodules; Jarosite; Alkali decomposition; Magnetite; Pigments (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [6FD0801C1BB2]
http://linked.open...i/riv/nazevZdroje
  • Hydrometallurgy
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 101
http://linked.open...iv/tvurceVysledku
  • Hron, Tomáš
  • Jandová, Jitka
  • Hong, Vu
http://linked.open...ain/vavai/riv/wos
  • 000274882200001
http://linked.open...n/vavai/riv/zamer
issn
  • 0304-386X
number of pages
http://localhost/t...ganizacniJednotka
  • 22310
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