Extraction of contaminant metals from dumped metacolloid ores in order to reduce their hazardousness

Extraction of contaminant metals from dumped metacolloid ores in order to reduce their hazardousness Problems of human and environmental protection from discharges formed in out-of-balance ores dumped from nonferrous metallurgy were considered. To the most hazardous dumps belong those of metacolloid ores, discharges from which are contaminated with copper, zinc, iron, and also indium and cadmium. It was found that the most effective way to preclude the contamination is by using heap leaching of contaminant metals from ores in the chemical reclamation of the dumps. Mathematical dependences of the leaching rate of easily soluble compounds of metals (copper, zinc, indium, and cadmium) from metacolloid ores on the main technological factors of the process: sulfuric acid concentration, ore spraying density, and oxidation interval between sprayings were determined, the optimal process modes were found, and the cost-efficient production of metals in reclamation of dumps of this kind to a state in which they hardly contaminate the environment was calculated. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Extraction of contaminant metals from dumped metacolloid ores in order to reduce their hazardousness

Loading next page...
 
/lp/springer_journal/extraction-of-contaminant-metals-from-dumped-metacolloid-ores-in-order-RXzorJdOIz
Publisher
Pleiades Publishing
Copyright
Copyright © 2016 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427216030058
Publisher site
See Article on Publisher Site

Abstract

Problems of human and environmental protection from discharges formed in out-of-balance ores dumped from nonferrous metallurgy were considered. To the most hazardous dumps belong those of metacolloid ores, discharges from which are contaminated with copper, zinc, iron, and also indium and cadmium. It was found that the most effective way to preclude the contamination is by using heap leaching of contaminant metals from ores in the chemical reclamation of the dumps. Mathematical dependences of the leaching rate of easily soluble compounds of metals (copper, zinc, indium, and cadmium) from metacolloid ores on the main technological factors of the process: sulfuric acid concentration, ore spraying density, and oxidation interval between sprayings were determined, the optimal process modes were found, and the cost-efficient production of metals in reclamation of dumps of this kind to a state in which they hardly contaminate the environment was calculated.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Jun 15, 2016

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve Freelancer

DeepDyve Pro

Price
FREE
$49/month

$360/year
Save searches from
Google Scholar,
PubMed
Create lists to
organize your research
Export lists, citations
Read DeepDyve articles
Abstract access only
Unlimited access to over
18 million full-text articles
Print
20 pages/month
PDF Discount
20% off