FR2365638A2 - 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) - Google Patents

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)

Info

Publication number
FR2365638A2
FR2365638A2 FR7628912A FR7628912A FR2365638A2 FR 2365638 A2 FR2365638 A2 FR 2365638A2 FR 7628912 A FR7628912 A FR 7628912A FR 7628912 A FR7628912 A FR 7628912A FR 2365638 A2 FR2365638 A2 FR 2365638A2
Authority
FR
France
Prior art keywords
lead
redn
chloride
high purity
pbcl2
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
FR7628912A
Other languages
French (fr)
Other versions
FR2365638B2 (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 FR7628912A priority Critical patent/FR2365638A2/en
Priority to BR7702415A priority patent/BR7702415A/en
Priority to SE7704351A priority patent/SE454782B/en
Priority to BE179358A priority patent/BE856829A/en
Priority to CA282,906A priority patent/CA1108867A/en
Priority to GR53979A priority patent/GR66043B/el
Priority to PT66825A priority patent/PT66825B/en
Priority to YU01799/77A priority patent/YU179977A/en
Priority to ZA00774362A priority patent/ZA774362B/en
Priority to JP52087216A priority patent/JPS602371B2/en
Priority to PL1977199743A priority patent/PL111098B1/en
Priority to GB30335/77A priority patent/GB1560053A/en
Priority to MX77169917A priority patent/MX146692A/en
Priority to IT12697/77A priority patent/IT1081027B/en
Priority to AU27173/77A priority patent/AU516246B2/en
Priority to IE1512/77A priority patent/IE45861B1/en
Priority to DE2732817A priority patent/DE2732817C2/en
Priority to ES460890A priority patent/ES460890A1/en
Priority to PH20014A priority patent/PH17756A/en
Publication of FR2365638A2 publication Critical patent/FR2365638A2/en
Application granted granted Critical
Publication of FR2365638B2 publication Critical patent/FR2365638B2/fr
Priority to SE8602268A priority patent/SE8602268L/en
Priority to SE8701744A priority patent/SE8701744L/en
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
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The parent patent described the leaching of a sulphide ore or concentrate, contg. Pb and other metals, with an aq. soln. contg. the chloride(s) of Cu, Bi and/or Ag, using below the stoichiometric amt. of chloride needed for complete soln. of the Pb. In this addn. the Pb in 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.
FR7628912A 1976-04-15 1976-09-24 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) Granted FR2365638A2 (en)

Priority Applications (21)

Application Number Priority Date Filing Date Title
FR7628912A FR2365638A2 (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 (SW 7.11.77)
BR7702415A BR7702415A (en) 1976-04-15 1977-04-15 HYDROMETALURGICAL PROCESS FOR THE TREATMENT OF SULFURATED COMPOUNDS CONTAINING LEAD
SE7704351A SE454782B (en) 1976-04-15 1977-04-15 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)
BE179358A BE856829A (en) 1976-07-20 1977-07-14 HYDROMETALLURGIC PROCESS FOR THE TREATMENT OF SULPHIDE COMPOUNDS CONTAINING LEAD
GR53979A GR66043B (en) 1976-07-20 1977-07-18
CA282,906A CA1108867A (en) 1976-07-20 1977-07-18 Hydrometallurgical process for the treatment of sulphidized compounds containing lead
GB30335/77A GB1560053A (en) 1976-07-20 1977-07-19 Hydrometallurgical recovery of lead from mixed metal sulphides
ZA00774362A ZA774362B (en) 1976-07-20 1977-07-19 Hydrometallurgical process for the treatment of sulphidized compounds containing lead
JP52087216A JPS602371B2 (en) 1976-07-20 1977-07-19 Wet metallurgy method for treating lead-containing sulfide compounds
PL1977199743A PL111098B1 (en) 1976-07-20 1977-07-19 Hydrometallugical process for treatment of lead containing sulfur compounds
PT66825A PT66825B (en) 1976-07-20 1977-07-19 HYDROMETALLURGICAL PROCESS FOR THE TREATMENT OF COMPOSESULFIDES CONTAINING LEAD
YU01799/77A YU179977A (en) 1976-07-20 1977-07-19 Hydrometallurgic process for treating lead containing sulfidic compounds
IT12697/77A IT1081027B (en) 1976-07-20 1977-07-20 HYDROMETALLURGIC PROCEDURE FOR THE TREATMENT OF SULPHURED COMPOUNDS CONTAINING LEAD
AU27173/77A AU516246B2 (en) 1976-07-20 1977-07-20 Recovery of lead from sulphide ores and concentrates
IE1512/77A IE45861B1 (en) 1976-07-20 1977-07-20 Hydrometallurgical recovery of lead from mixed metal sulphides
DE2732817A DE2732817C2 (en) 1976-07-20 1977-07-20 Hydrometallurgical process for the selective dissolution of lead from sulfidic minerals and concentrates
ES460890A ES460890A1 (en) 1976-07-20 1977-07-20 Hydrometallurgical recovery of lead from mixed metal sulphides
PH20014A PH17756A (en) 1976-07-20 1977-07-20 Hydrometallurgical process for the treatment of sulphidized compounds containing lead
MX77169917A MX146692A (en) 1976-07-20 1977-07-20 IMPROVEMENTS IN THE HYDROMETALLURGICAL PROCEDURE TO TREAT A SULFURATED COMPOUND THAT CONTAINS LEAD AS LEAST AS NON-IRON METAL
SE8602268A SE8602268L (en) 1976-04-15 1986-05-20 HYDROMETAL SURGICAL PROCEDURE FOR TREATMENT OF SULFUR SOCIETIES, WHICH CONTENTS
SE8701744A SE8701744L (en) 1976-04-15 1987-04-28 HYDROMETAL SURGICAL PROCEDURE FOR TREATMENT OF SULFUR SOCIETIES, WHICH CONTENTS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7628912A FR2365638A2 (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 (SW 7.11.77)

Publications (2)

Publication Number Publication Date
FR2365638A2 true FR2365638A2 (en) 1978-04-21
FR2365638B2 FR2365638B2 (en) 1983-05-27

Family

ID=9178082

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7628912A Granted FR2365638A2 (en) 1976-04-15 1976-09-24 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)

Country Status (1)

Country Link
FR (1) FR2365638A2 (en)

Also Published As

Publication number Publication date
FR2365638B2 (en) 1983-05-27

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