FR2365639A2 - Leaching sulphide ore to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead - Google Patents

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

Info

Publication number
FR2365639A2
FR2365639A2 FR7628913A FR7628913A FR2365639A2 FR 2365639 A2 FR2365639 A2 FR 2365639A2 FR 7628913 A FR7628913 A FR 7628913A FR 7628913 A FR7628913 A FR 7628913A FR 2365639 A2 FR2365639 A2 FR 2365639A2
Authority
FR
France
Prior art keywords
lead
redn
pbcl2
obtd
pref
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
FR7628913A
Other languages
French (fr)
Other versions
FR2365639B2 (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 FR7628913A priority Critical patent/FR2365639A2/en
Publication of FR2365639A2 publication Critical patent/FR2365639A2/en
Application granted granted Critical
Publication of FR2365639B2 publication Critical patent/FR2365639B2/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
    • 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
    • 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
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/20—Obtaining zinc otherwise than by distilling
    • C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
    • 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
    • C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
    • 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)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The parent patent described the leaching of a sulphide ore or concentrate, contg. zinc and other nonferrous metals, with an aq. soln. of CuCl2. The resulting soln. was subjected to liq.-liq. reaction with an organic phase which acquires the Zn; and the Zn is recovered from the organic phase by elution. In this addn. the ore or concentrate contains Pb; and the Pb obtd. in the leaching soln. is recovered as PbCl2 crystals, which are then melted and reduced by H2. Redn. is pref. at 750-850 degrees C., esp. using H2 diluted by an inert gas and injected into the molten PbCl2. The hourly flow of H2 is pref. at least twice the stoichiometric amt. necessary for total redn. of the PbCl2; and the H2 in the gases leaving the redn. process is pref. sepd. from the HCl obtd. and recycled to the redn. process, whereas the HCl is recycled for dissolving the lead. Metallic lead with high purity can be obtd.; the Cl ions are directly recovered as HCl which is recycled; and the reducing agent is inexpensive. The process also eliminates extra processing stages which were necessary with the earlier patents.
FR7628913A 1976-09-24 1976-09-24 Leaching sulphide ore to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead Granted FR2365639A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7628913A FR2365639A2 (en) 1976-09-24 1976-09-24 Leaching sulphide ore 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
FR7628913A FR2365639A2 (en) 1976-09-24 1976-09-24 Leaching sulphide ore to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead

Publications (2)

Publication Number Publication Date
FR2365639A2 true FR2365639A2 (en) 1978-04-21
FR2365639B2 FR2365639B2 (en) 1980-12-05

Family

ID=9178083

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7628913A Granted FR2365639A2 (en) 1976-09-24 1976-09-24 Leaching sulphide ore 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) FR2365639A2 (en)

Also Published As

Publication number Publication date
FR2365639B2 (en) 1980-12-05

Similar Documents

Publication Publication Date Title
CA2745933A1 (en) Method for thiosulfate leaching of precious metal-containing materials
EP0081310A3 (en) Metal sulphide extraction
US4131454A (en) Process for recovering silver and gold from chloride solutions
GB1526115A (en) Process for the recovery of germanium from germaniferous zinc
ES8303538A1 (en) Recovering zinc from zinc-containing sulphidic material.
IE44467L (en) Recovery of zinc.
US3634070A (en) Process for recovery of copper and other metals from source materials
EP2963132A1 (en) Method for leaching gold from gold ore containing pyrite
Chi et al. Recovering RE from leaching liquor of rare earth ore by extraction
FR2365639A2 (en) Leaching sulphide ore to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead
FR2365636A2 (en) Sulphide ore leached to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead
GB1094849A (en) Process for purifying nickel sulphide
SE454782B (en) Leaching sulphide ore to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead (SW 7.11.77)
FR2365638A2 (en) Leaching sulphide ore to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead (SW 7.11.77)
US4276084A (en) Hydrometallurgical process for the recovery of lead
US4302428A (en) Yellowcake processing in uranium recovery
FR2365637A2 (en) Oxide ore leached to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead
US4401632A (en) Recovery of arsenic from flue dust
US5178665A (en) Recovery of dissolved gold by sodium borohydride (NaBH4) reduction
Hoffmann The hydrometallurgical extraction and recovery of high-purity silver
GB1516127A (en) Removing metals from sulphide ores
WO2019064709A1 (en) Gold leaching method and gold recovery method
AU2013100677A4 (en) Method of pretreating gold ore
US4129441A (en) Recovery of silver from silver containing solutions
US2547939A (en) Extraction of tin from ores and concentrates