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
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.
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) |
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) |
BR7702415A BR7702415A (en) | 1976-04-15 | 1977-04-15 | HYDROMETALURGICAL PROCESS FOR THE TREATMENT OF SULFURATED COMPOUNDS CONTAINING LEAD |
BE179358A BE856829A (en) | 1976-07-20 | 1977-07-14 | HYDROMETALLURGIC PROCESS FOR THE TREATMENT OF SULPHIDE COMPOUNDS CONTAINING LEAD |
CA282,906A CA1108867A (en) | 1976-07-20 | 1977-07-18 | Hydrometallurgical process for the treatment of sulphidized compounds containing lead |
GR53979A GR66043B (en) | 1976-07-20 | 1977-07-18 | |
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 |
ZA00774362A ZA774362B (en) | 1976-07-20 | 1977-07-19 | Hydrometallurgical process for the treatment of sulphidized compounds containing lead |
PL1977199743A PL111098B1 (en) | 1976-07-20 | 1977-07-19 | Hydrometallugical process for treatment of lead containing sulfur compounds |
GB30335/77A GB1560053A (en) | 1976-07-20 | 1977-07-19 | Hydrometallurgical recovery of lead from mixed metal sulphides |
JP52087216A JPS602371B2 (en) | 1976-07-20 | 1977-07-19 | Wet metallurgy method for treating lead-containing sulfide compounds |
PH20014A PH17756A (en) | 1976-07-20 | 1977-07-20 | Hydrometallurgical process for the treatment of sulphidized compounds containing lead |
ES460890A ES460890A1 (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 |
IE1512/77A IE45861B1 (en) | 1976-07-20 | 1977-07-20 | Hydrometallurgical recovery of lead from mixed metal sulphides |
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 |
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 |
SE8602268A SE8602268D0 (en) | 1976-04-15 | 1986-05-20 | HYDROMETAL SURGICAL PROCEDURE FOR TREATMENT OF SULFUR SOCIETIES, WHICH CONTENTS |
SE8701744A SE8701744D0 (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) |
-
1976
- 1976-09-24 FR FR7628912A patent/FR2365638A2/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2365638B2 (en) | 1983-05-27 |
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