SE454782B - 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
- SE454782B SE454782B SE7704351A SE7704351A SE454782B SE 454782 B SE454782 B SE 454782B SE 7704351 A SE7704351 A SE 7704351A SE 7704351 A SE7704351 A SE 7704351A SE 454782 B SE454782 B SE 454782B
- Authority
- SE
- Sweden
- Prior art keywords
- lead
- redn
- chloride
- high purity
- pbcl2
- Prior art date
Links
- HWSZZLVAJGOAAY-UHFFFAOYSA-L lead(II) chloride Chemical compound Cl[Pb]Cl HWSZZLVAJGOAAY-UHFFFAOYSA-L 0.000 title abstract 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title abstract 2
- 238000002386 leaching Methods 0.000 title abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title 1
- 229910052739 hydrogen Inorganic materials 0.000 title 1
- 239000001257 hydrogen Substances 0.000 title 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 2
- 229910052797 bismuth Inorganic materials 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 239000012141 concentrate Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
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.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE166225A BE840820A (en) | 1975-04-21 | 1976-04-15 | HYDROMETALLURGIC PROCESS FOR TREATING SULPHIDE ORES |
| FR7622138A FR2359211A1 (en) | 1976-07-20 | 1976-07-20 | Selective dissolution of lead from sulphur cpds. - by contacting within aq. soln. contg. a chloride (SW 7.11.77) |
| 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 |
|---|---|
| SE7704351L SE7704351L (en) | 1977-10-16 |
| SE454782B true SE454782B (en) | 1988-05-30 |
Family
ID=27158594
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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) |
| 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 |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (2)
| Country | Link |
|---|---|
| BR (1) | BR7702415A (en) |
| SE (3) | SE454782B (en) |
-
1977
- 1977-04-15 SE SE7704351A patent/SE454782B/en not_active IP Right Cessation
- 1977-04-15 BR BR7702415A patent/BR7702415A/en unknown
-
1986
- 1986-05-20 SE SE8602268A patent/SE8602268D0/en not_active Application Discontinuation
-
1987
- 1987-04-28 SE SE8701744A patent/SE8701744D0/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| BR7702415A (en) | 1978-05-02 |
| SE8701744L (en) | 1987-04-28 |
| SE8701744D0 (en) | 1987-04-28 |
| SE7704351L (en) | 1977-10-16 |
| SE8602268L (en) | 1986-05-20 |
| SE8602268D0 (en) | 1986-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2745933A1 (en) | Method for thiosulfate leaching of precious metal-containing materials | |
| IE44035L (en) | Recovering zinc. | |
| GB1407215A (en) | Hydrometallurgical process for the production of copper | |
| CA2160488A1 (en) | Recovery of Metals from Sulphidic Material | |
| US4131454A (en) | Process for recovering silver and gold from chloride solutions | |
| GB1526115A (en) | Process for the recovery of germanium from germaniferous zinc | |
| Kerley Jr | Recovery of precious metals from difficult ores | |
| US3902890A (en) | Refining silver-bearing residues | |
| 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) | |
| 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) | |
| GB1094849A (en) | Process for purifying nickel sulphide | |
| FR2365636A2 (en) | Sulphide ore leached to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead | |
| FR2365639A2 (en) | Leaching sulphide ore to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead | |
| McGrew et al. | Iodine leach for the dissolution of gold | |
| FR2365637A2 (en) | Oxide ore leached to dissolve lead - which is pptd. as lead chloride and reduced by hydrogen to obtain high purity lead | |
| Tomita et al. | New Sumitomo process and operation for recovering arsenic trioxide from arsenic residue | |
| US4401632A (en) | Recovery of arsenic from flue dust | |
| Kunda | Hydrometallurgical processing of silver concentrate | |
| US4129441A (en) | Recovery of silver from silver containing solutions | |
| GB1516127A (en) | Removing metals from sulphide ores | |
| FR2446863A1 (en) | Lead recovery from sulphidic source - comprises halogenation, brine leaching and purification of leach soln. by redn., then oxidn. | |
| CA1227340A (en) | Separation of lead from other metals | |
| Sanmiya et al. | Oxygen refining of smelted silver residues | |
| Ke et al. | Recovery of Silver From Refinery Anode Slime of Recycled Scrap Copper | |
| KR790000195B1 (en) | Zinc smelting method by colleting dust from steel smelting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
Ref document number: 7704351-1 Effective date: 19941110 Format of ref document f/p: F |