GB681622A - Method for refining lead, tin and alloys thereof - Google Patents
Method for refining lead, tin and alloys thereofInfo
- Publication number
- GB681622A GB681622A GB8814/50A GB881450A GB681622A GB 681622 A GB681622 A GB 681622A GB 8814/50 A GB8814/50 A GB 8814/50A GB 881450 A GB881450 A GB 881450A GB 681622 A GB681622 A GB 681622A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alloys
- impurities
- metal
- added
- refining
- 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
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
- C22B13/06—Refining
-
- 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
A method for the collective removal of impurities, particularly Cu, As, Ni, Fe and bound S, from contaminated Pb or Sn or alloys of these metals is characterized by addition of a quantity of a mixture of alkali hydroxide and S to the molten metal or alloy with energetic stirring and without removal of the dross formed on melting, the quantity of reagent added being less than that stoichiometrically equivalent to the amount of impurities. A mush is produced on the molten metal bath which consists of impurities and adhering metal. Energetic stirring is continued and a carbonaceous drying agent is added until adhering metal is separated from the mush which is transformed into a dry residue and removed from the bath. The refining agent, which preferably contains 3 to 5 parts of alkali hydroxide to 1 part of S, may be added in a proportion of 0.1 to 1 per cent by weight of the impure metal or alloy charge. Examples are given of the refining of Pb-Sn-Sb alloys.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US681622XA | 1949-04-12 | 1949-04-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB681622A true GB681622A (en) | 1952-10-29 |
Family
ID=22080798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8814/50A Expired GB681622A (en) | 1949-04-12 | 1950-04-11 | Method for refining lead, tin and alloys thereof |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB681622A (en) |
-
1950
- 1950-04-11 GB GB8814/50A patent/GB681622A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2129445A (en) | Treating impure lead and/or tin metal | |
GB681622A (en) | Method for refining lead, tin and alloys thereof | |
US2110445A (en) | Process for purifying impure lead | |
US2296196A (en) | Process for purifying metals | |
US1786908A (en) | Process for the separation and purification of metals and metallic alloys | |
US2119197A (en) | Refining alloys of lead and tin | |
US1523980A (en) | Treatment of antimonial metals | |
DD127945B1 (en) | PROCESS FOR PROCESSING COOL SCRAP | |
US2343760A (en) | Smelting of drosses, mattes, and the like | |
DE589738C (en) | Process for the extraction of lead, antimony or bismuth | |
US1092936A (en) | Process for purifying aluminum and its alloys. | |
US2115299A (en) | Process for refining lead alloys | |
DE596476C (en) | Process for separating the layer formed during the removal of contaminants from lead, tin or alloys of these metals using aluminum from the adhering metals | |
US1808594A (en) | Process for separating platinum from the other precious metals | |
US2150353A (en) | Refining of white metals | |
US2797990A (en) | Flux for magnesium alloys containing zirconium | |
SU96845A1 (en) | The method of purification of antimony lead from antimony | |
DE500942C (en) | Cleaning of cast metals | |
US2116891A (en) | Process for the production of solder and terne metals | |
US1976225A (en) | Refining white metal scrap | |
US2364815A (en) | Method of treating tin hardhead to recover tin | |
US1460830A (en) | Metallurgical process | |
US2300939A (en) | Process for refining lead | |
DE546028C (en) | Process for the extraction of tin | |
US2103762A (en) | Process for refining metals |