IT1033725B - Hydro-metallurgical extraction of non-ferrous metals - from prim. and sec. ores, by -prods and ind wastes - Google Patents

Hydro-metallurgical extraction of non-ferrous metals - from prim. and sec. ores, by -prods and ind wastes

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Publication number
IT1033725B
IT1033725B IT483675A IT483675A IT1033725B IT 1033725 B IT1033725 B IT 1033725B IT 483675 A IT483675 A IT 483675A IT 483675 A IT483675 A IT 483675A IT 1033725 B IT1033725 B IT 1033725B
Authority
IT
Italy
Prior art keywords
leaching
soln
ores
contg
prods
Prior art date
Application number
IT483675A
Other languages
Italian (it)
Original Assignee
Cronjaeger H
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cronjaeger H filed Critical Cronjaeger H
Priority to IT483675A priority Critical patent/IT1033725B/en
Application granted granted Critical
Publication of IT1033725B publication Critical patent/IT1033725B/en

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  • Manufacture And Refinement Of Metals (AREA)

Abstract

Non-ferrous metals e.g. Cu, Ni, Zn, Co, Sn, U and partic. Au, and Pt metals are extracted from prim. and sec. ores, concentrates, Mn-contg. ores, thermal leaching sediments, metallurgical inter and by-prods, and ind. wastes by leaching the matl in particulate form with a soln. composed of Mg chloride and/or other alkali chlorides contg. 50-350 g NaCl/l, and nitric acid of about 3-90 wt.% concn., and at a temp. 20-110 degrees C. The leaching process is carried out for a period of 30 min to 5 h, and pref. by mechanically and/or pneumatically stirring the mixt. The leaching soln. is made up by mixing the respective substances corresponding to the required concn. of H+-, Cl--, and NO3- ions, and by using dosing units and instruments for feeding the addns to the leaching unit. Pref. the soln. is made up by using waste nitriding acids, or natural salt solns., seawater or suitable industrial waste waters contg. salt. The waste leaching soln., which is regenerated, and the steam condensates are recycled.
IT483675A 1975-07-22 1975-07-22 Hydro-metallurgical extraction of non-ferrous metals - from prim. and sec. ores, by -prods and ind wastes IT1033725B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT483675A IT1033725B (en) 1975-07-22 1975-07-22 Hydro-metallurgical extraction of non-ferrous metals - from prim. and sec. ores, by -prods and ind wastes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT483675A IT1033725B (en) 1975-07-22 1975-07-22 Hydro-metallurgical extraction of non-ferrous metals - from prim. and sec. ores, by -prods and ind wastes

Publications (1)

Publication Number Publication Date
IT1033725B true IT1033725B (en) 1979-08-10

Family

ID=11114684

Family Applications (1)

Application Number Title Priority Date Filing Date
IT483675A IT1033725B (en) 1975-07-22 1975-07-22 Hydro-metallurgical extraction of non-ferrous metals - from prim. and sec. ores, by -prods and ind wastes

Country Status (1)

Country Link
IT (1) IT1033725B (en)

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