Preparation of pigment-quality hematite from jarosite
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F14%3A43898419" target="_blank" >RIV/60461373:22310/14:43898419 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Preparation of pigment-quality hematite from jarosite
Original language description
Sodium and ammonium jarosite precipitates from the sulfuric acid leaching of deep-sea nodules were converted into well crystallized hematite by alkali decomposition of jarosite using sodium hydroxide or ammonia solutions and subsequent sintering at 400 and 750 °C. It was found that base-strength of alkali solutions and reaction temperature affected the kinetics of conversion reactions and morphology of solid phase. The main impurities in jarosite precipitates such as Mn, Cu and Ni reported into the final product, but hematite obtained from decomposition of ammonium jarosite contained significantly less Cu due to formation of copper ammonia complex.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JK - Corrosion and material surfaces
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the 18th Conference on Environment and Mineral Processing
ISBN
978-80-248-3427-6
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
165-170
Publisher name
Vysoká škola báňská - Technická univerzita Ostrava
Place of publication
Ostrava
Event location
Ostrava
Event date
May 29, 2014
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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