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Chemical mining of primary copper ores by use of nuclear technology

Abstract

Chemical mining of primary copper ores, with nuclear explosives to break the ore and in-situ hydrostatic pressure to accelerate dissolution of primary ore minerals, may be feasible. A contained nuclear explosion well below the water table would be used to provide a mass of broken ore in a flooded 'chimney'. The hydrostatic pressure in the chimney should increase the solubility of oxygen in a water-sulfuric acid system enough to allow primary copper minerals such as chalcopyrite and bornite to be dissolved in an acceptably short time. Circulation and collection would be accomplished through drill holes. This method should be especially applicable to the deep portions of porphyry copper deposits that are not economical to mine by present techniques. (author)
Authors:
Lewis, A E [1] 
  1. Lawrence Radiation Laboratory, University of California, Livermore, CA (United States)
Publication Date:
May 15, 1970
Product Type:
Conference
Report Number:
CONF-700101(vol.2); INIS-XA-N-229
Resource Relation:
Conference: Symposium on engineering with nuclear explosives, Las Vegas, NV (United States), 14-16 Jan 1970; Other Information: 6 refs, 6 figs; Related Information: In: Symposium on engineering with nuclear explosives. Proceedings. Volume 2, 935 pages.
Subject:
42 ENGINEERING; BOREHOLES; CHEMICAL ENGINEERING; CHIMNEYS; COPPER COMPOUNDS; COPPER ORES; DISSOLUTION; FEASIBILITY STUDIES; HYDROSTATICS; IN-SITU PROCESSING; MINING; NUCLEAR EXPLOSIVES; PORPHYRINS; SOLUBILITY; SULFURIC ACID
OSTI ID:
20768808
Research Organizations:
American Nuclear Society, Hindsdale, IL (United States); United States Atomic Energy Commission (United States)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
TRN: XA04N0875075275
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
page(s) 909-917
Announcement Date:
Sep 25, 2006

Citation Formats

Lewis, A E. Chemical mining of primary copper ores by use of nuclear technology. IAEA: N. p., 1970. Web.
Lewis, A E. Chemical mining of primary copper ores by use of nuclear technology. IAEA.
Lewis, A E. 1970. "Chemical mining of primary copper ores by use of nuclear technology." IAEA.
@misc{etde_20768808,
title = {Chemical mining of primary copper ores by use of nuclear technology}
author = {Lewis, A E}
abstractNote = {Chemical mining of primary copper ores, with nuclear explosives to break the ore and in-situ hydrostatic pressure to accelerate dissolution of primary ore minerals, may be feasible. A contained nuclear explosion well below the water table would be used to provide a mass of broken ore in a flooded 'chimney'. The hydrostatic pressure in the chimney should increase the solubility of oxygen in a water-sulfuric acid system enough to allow primary copper minerals such as chalcopyrite and bornite to be dissolved in an acceptably short time. Circulation and collection would be accomplished through drill holes. This method should be especially applicable to the deep portions of porphyry copper deposits that are not economical to mine by present techniques. (author)}
place = {IAEA}
year = {1970}
month = {May}
}