GB797607A - Leaching of non-ferrous metals from ores containing metalloids - Google Patents

Leaching of non-ferrous metals from ores containing metalloids

Info

Publication number
GB797607A
GB797607A GB2276655A GB2276655A GB797607A GB 797607 A GB797607 A GB 797607A GB 2276655 A GB2276655 A GB 2276655A GB 2276655 A GB2276655 A GB 2276655A GB 797607 A GB797607 A GB 797607A
Authority
GB
United Kingdom
Prior art keywords
arsenic
slurry
nitric acid
liquor
ore
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2276655A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chemical Construction Corp
Original Assignee
Chemical Construction Corp
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 Chemical Construction Corp filed Critical Chemical Construction Corp
Publication of GB797607A publication Critical patent/GB797607A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/04—Obtaining nickel or cobalt by wet processes
    • C22B23/0407—Leaching processes
    • C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

Copper, nickel and/or cobalt are extracted from ores thereof containing also arsenic, antimony, selenium and/or tellurium by forming a slurry thereof in aqueous sulphuric acid, supplying therein 1 to 5 per cent by weight of nitric acid based on the total liquids of said slurry and maintaining said slurry in the presence of an oxygen-containing gas at the aforesaid nitric acid concentration and a temperature of 100 DEG to 150 DEG C. The copper &c. and any iron present pass into solution as sulphates whilst the arsenic &c. primarily remains in the residue as oxide. In the case of arsenic, some of the arsenic is dissolved as As2O3 which is in part precipitated when the liquor is cooled. Preferred procedures include the use of a pressure of 10 to 200 p.s.i.g. (although open vessels may be used) and the addition of a further quantity of ore to the residual liquor to eliminate nitric acid. A part of the sulphuric acid necessary for sulphate formation may be derived from the sulphur in the ore and the liquor after removal of metal values will then generally be recycled. The nitric acid may be supplied in the slurry by means of nitrogen oxide gases.
GB2276655A 1954-08-16 1955-08-08 Leaching of non-ferrous metals from ores containing metalloids Expired GB797607A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US797607XA 1954-08-16 1954-08-16

Publications (1)

Publication Number Publication Date
GB797607A true GB797607A (en) 1958-07-02

Family

ID=22152630

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2276655A Expired GB797607A (en) 1954-08-16 1955-08-08 Leaching of non-ferrous metals from ores containing metalloids

Country Status (1)

Country Link
GB (1) GB797607A (en)

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