Recovery of pigment-quality magnetite from jarosite precipitate

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F10%3A00023109" target="_blank" >RIV/60461373:22310/10:00023109 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Recovery of pigment-quality magnetite from jarosite precipitate

Original language 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.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CA - Inorganic chemistry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2010

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Hydrometallurgy

ISSN

0304-386X

e-ISSN

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Volume of the periodical

101

Issue of the periodical within the volume

1

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

6

Pages from-to

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UT code for WoS article

000274882200001

EID of the result in the Scopus database

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