GB788525A - Improvements in or relating to the recovery of zinc from the zinc crust obtained in the separation of silver from lead - Google Patents

Improvements in or relating to the recovery of zinc from the zinc crust obtained in the separation of silver from lead

Info

Publication number
GB788525A
GB788525A GB1316856A GB1316856A GB788525A GB 788525 A GB788525 A GB 788525A GB 1316856 A GB1316856 A GB 1316856A GB 1316856 A GB1316856 A GB 1316856A GB 788525 A GB788525 A GB 788525A
Authority
GB
United Kingdom
Prior art keywords
per cent
furnace
condenser
zinc
temperature
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.)
Expired
Application number
GB1316856A
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
Publication of GB788525A publication Critical patent/GB788525A/en
Expired 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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/001—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
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/04—Obtaining zinc by distilling
    • 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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/16—Dry methods smelting of sulfides or formation of mattes with volatilisation or condensation of the metal being produced
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

788,525. Distilling zinc; producing lead alloy. SOC. MINIERE & METALLURGIQUE PENARROYA and LEFERRER. F. April 30, 1956 [May 20. 1955], No. 13168/56. Class 82(1) [Also in Group XII] / Zinc crust (an alloy containing Ag. Zn and Pb) obtained in the operation of silver from lead is enclosed in an air tight furnace 6 and its temperature raised to 750- 850‹C. by electric resistors 3. The Zn vapour is conducted through an air tight passage 20 to an air tight condenser 13, the furnace, passage and condenser being maintained at a pressure of 3-12 mm. Hg. The condensed Zn 17 is maintained automatically at a temperature of 420-450‹C. on the one hand by exchange of heat between the furnace, passage and condenser, and on the other hand by a regulating device which is controlled by the condenser temperature, and itself controls the electric resistors. The supply of heat to the alloy is cut off manually or automatically when a sudden rise in furnace temperature to about 1000‹C. indicates that there is no more Zn in the furnace. Substantially pure Zn is collected from the condenser and substantially Zn-free alloy from the furnace. If the zinc crust initially has a melting point above 800‹C., lead is added to reduce it. The regulating device may be a thermo-couple 16 immersed in the condensed Zn and connected by a relay to the electric resistors. The condenser is fitted with a starting heater 15, and the furnace also has a thermo-couple to provide an indication of its temperature. In an example, zinc crust containing 50 per cent Zn, 19.25 per cent Ag, 29.25 per cent Pb and 1.5 per cent Cu was treated to produce Zn containing 1 per cent Pb and 0.15 per cent Ag, and Pb containing 38 per cent Ag, 3.5 per cent Cu, 1 per cent Zn, and 0.5 per cent impurities.
GB1316856A 1955-05-20 1956-04-30 Improvements in or relating to the recovery of zinc from the zinc crust obtained in the separation of silver from lead Expired GB788525A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR788525X 1955-05-20

Publications (1)

Publication Number Publication Date
GB788525A true GB788525A (en) 1958-01-02

Family

ID=9219607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1316856A Expired GB788525A (en) 1955-05-20 1956-04-30 Improvements in or relating to the recovery of zinc from the zinc crust obtained in the separation of silver from lead

Country Status (1)

Country Link
GB (1) GB788525A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360362A (en) * 1963-10-18 1967-12-26 Metallurgical Processes Ltd Dezincing of lead
GB2119490A (en) * 1982-04-30 1983-11-16 Westinghouse Electric Corp Improvements in or relating to furnaces for combination metal reduction and distillation
US5232486A (en) * 1991-04-23 1993-08-03 Brunswick Mining And Smelting Corporation Limited One step process for the treatment of Parkes desilvering crust to recover zinc and produce a suitable feed for cupellation
GB2266945A (en) * 1992-05-08 1993-11-17 Borli Srl Tank furnace for low pressure injection casting
EP3117015A4 (en) * 2014-03-13 2017-10-11 Glencore Technology Pty Ltd. Process for refining metals

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360362A (en) * 1963-10-18 1967-12-26 Metallurgical Processes Ltd Dezincing of lead
GB2119490A (en) * 1982-04-30 1983-11-16 Westinghouse Electric Corp Improvements in or relating to furnaces for combination metal reduction and distillation
US5232486A (en) * 1991-04-23 1993-08-03 Brunswick Mining And Smelting Corporation Limited One step process for the treatment of Parkes desilvering crust to recover zinc and produce a suitable feed for cupellation
GB2266945A (en) * 1992-05-08 1993-11-17 Borli Srl Tank furnace for low pressure injection casting
EP3117015A4 (en) * 2014-03-13 2017-10-11 Glencore Technology Pty Ltd. Process for refining metals

Similar Documents

Publication Publication Date Title
GB865370A (en) Improvements in or relating to processes for producing semi-conductor devices
GB788525A (en) Improvements in or relating to the recovery of zinc from the zinc crust obtained in the separation of silver from lead
GB834593A (en) Improvements in or relating to thermocouples
GB900668A (en) Method for production of bismuth
De Haas et al. The electrical resistance of cadmium, thallium and tin at low temperatures
GB766061A (en) Improvements in or relating to uranium alloys
GB620644A (en) Improvements in condensing zinc vapour
GB870261A (en) Improvements in or relating to aluminium lithium alloys
US1792944A (en) Copper-silicon alloy
GB423699A (en) An improved apparatus for separating metals by vacuum distillation
US3147073A (en) Process for preparing molten silver chloride by the controlled reaction of chlorine on charge of metallic silver
GB829669A (en) Improvements in or relating to zinc-base bearing materials
GB552120A (en) Improvements in and relating to the production of metal or alloy powders
GB1057167A (en) Process for obtaining refined zinc by distillation
Petukhov et al. Liquidus Area on the Phase Diagram of the System Pb--Sn--Se
GB1154579A (en) Process for the Preparation of a Germanium-Silicon Alloy and Alloys Produced Thereby.
GB814852A (en) Improvements in or relating to the separation of tellurium from selenium
Larikov et al. The Effect of Impurities on the Growth Kinetics of Recrystallization Centers in Copper
GB990022A (en) Improvements in alloys with a nickel-chromium base
GB933001A (en) Improvements in or relating to equipment for use at low temperatures
GB465345A (en) Process for the refining of lead and lead alloys
GB912571A (en) A process for the production of a system zn cd sb
GB454480A (en) Process for the preparation of aluminium ethylate
O'brien et al. The preparation of metastable solid neodymium nitrate
Tomilo et al. Specific Electrical Resistance of Scandium as a Function of Temperature