FR2365636A2 - Sulphide ore leached to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead - Google Patents

Sulphide ore leached to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead

Info

Publication number
FR2365636A2
FR2365636A2 FR7628910A FR7628910A FR2365636A2 FR 2365636 A2 FR2365636 A2 FR 2365636A2 FR 7628910 A FR7628910 A FR 7628910A FR 7628910 A FR7628910 A FR 7628910A FR 2365636 A2 FR2365636 A2 FR 2365636A2
Authority
FR
France
Prior art keywords
lead
hydrogen
reduced
high purity
pptd
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.)
Granted
Application number
FR7628910A
Other languages
French (fr)
Other versions
FR2365636B2 (en
Inventor
Bernard Lambert
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.)
Societe Miniere et Metallurgique de Penarroya
Original Assignee
Societe Miniere et Metallurgique de Penarroya
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 Societe Miniere et Metallurgique de Penarroya filed Critical Societe Miniere et Metallurgique de Penarroya
Priority to FR7628910A priority Critical patent/FR2365636A2/en
Publication of FR2365636A2 publication Critical patent/FR2365636A2/en
Application granted granted Critical
Publication of FR2365636B2 publication Critical patent/FR2365636B2/fr
Granted 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
    • C22B13/00—Obtaining lead
    • C22B13/04—Obtaining lead by wet processes
    • 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
    • C22B13/00—Obtaining lead
    • C22B13/02—Obtaining lead by dry processes
    • 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
    • C22B3/10—Hydrochloric acid, other halogenated acids or salts thereof
    • 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
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Parent Patent describes the leaching of a sulphide ore or concentrate with an aq. soln. of CuCl2, for the selective dissolving of Cu, Pb, Zn, and noble metals leaving behind Fe and S. The improvement is that the ore or concentrate contains Pb, which is recovered from the soln. as PbCl2 crystals, which are then melted and reduced by hydrogen. Redn. is pref. at 750-850 degrees C., esp. using H2 which is diluted by an inert gas and injected into the molten PbCl2. Metallic lead with high purity can be obtd.; the Cl ions are recovered as HCl which is recycled; and the reducing agent employed is inexpensive.
FR7628910A 1976-09-24 1976-09-24 Sulphide ore leached to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead Granted FR2365636A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7628910A FR2365636A2 (en) 1976-09-24 1976-09-24 Sulphide ore leached to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7628910A FR2365636A2 (en) 1976-09-24 1976-09-24 Sulphide ore leached to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead

Publications (2)

Publication Number Publication Date
FR2365636A2 true FR2365636A2 (en) 1978-04-21
FR2365636B2 FR2365636B2 (en) 1979-03-02

Family

ID=9178080

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7628910A Granted FR2365636A2 (en) 1976-09-24 1976-09-24 Sulphide ore leached to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead

Country Status (1)

Country Link
FR (1) FR2365636A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000852A1 (en) * 1978-10-12 1980-05-01 Boliden Ab A method for recovering lead from a lead-chloride raw material
EP0117855A1 (en) * 1983-02-02 1984-09-05 Boliden Aktiebolag Process for recovering lead from lead chloride containing raw material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US704639A (en) * 1899-09-27 1902-07-15 Carl Hoepfner Leaching and extraction of metals from their ores.
US1736659A (en) * 1926-10-11 1929-11-19 Lafayette M Hughes Method of treating ores
FR1350934A (en) * 1963-01-22 1964-01-31 Alberta Res Council Apparatus and method for the direct dry extraction of metals from minerals and other substances

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US704639A (en) * 1899-09-27 1902-07-15 Carl Hoepfner Leaching and extraction of metals from their ores.
US1736659A (en) * 1926-10-11 1929-11-19 Lafayette M Hughes Method of treating ores
FR1350934A (en) * 1963-01-22 1964-01-31 Alberta Res Council Apparatus and method for the direct dry extraction of metals from minerals and other substances

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000852A1 (en) * 1978-10-12 1980-05-01 Boliden Ab A method for recovering lead from a lead-chloride raw material
EP0117855A1 (en) * 1983-02-02 1984-09-05 Boliden Aktiebolag Process for recovering lead from lead chloride containing raw material
US4512803A (en) * 1983-02-02 1985-04-23 Boliden Aktiebolag Process for recovering lead from lead chloride containing raw material

Also Published As

Publication number Publication date
FR2365636B2 (en) 1979-03-02

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