GB883706A - Improvements in or relating to the detinning of scrap material - Google Patents
Improvements in or relating to the detinning of scrap materialInfo
- Publication number
- GB883706A GB883706A GB1146860A GB1146860A GB883706A GB 883706 A GB883706 A GB 883706A GB 1146860 A GB1146860 A GB 1146860A GB 1146860 A GB1146860 A GB 1146860A GB 883706 A GB883706 A GB 883706A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lacquer
- soda
- lye
- scrap material
- detinning
- 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
- C22B25/00—Obtaining tin
- C22B25/06—Obtaining tin from scrap, especially tin scrap
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G19/00—Compounds of tin
- C01G19/04—Halides
- C01G19/06—Stannous chloride
-
- 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
Abstract
Scrap material, particularly tin sheet waste coated with layers of lacquer. e.g. composed of polyvinyl chloride or epoxy resins, phenolresins, polyester or polystyrene oil or similar synthetic resins, is detinned by first thermally pretracting it only up to temperatures from 120 DEG to 350 DEG C., which preclude a rebuilding or new formation of tin-iron alloys, and then subjecting it to a detinning operation by application of aqueous alkalies, e.g. soda-lye, either by a chemical or an electrolytic process. The heat-treatment may be carried out, e.g. for 3 to 30 minutes, either by using hot air or inert gases, or by applying steam or super-heated water, wherein soda or potash lye, an amine, ammonia or a lacquer-dissolving solvent (e.g. higher boiling ketones such as cyclohexanone) are introduced, preferably at 120 DEG -250 DEG C. and under 8 atmospheres.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE883706X | 1959-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB883706A true GB883706A (en) | 1961-12-06 |
Family
ID=6832162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1146860A Expired GB883706A (en) | 1959-04-04 | 1960-03-31 | Improvements in or relating to the detinning of scrap material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB883706A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2121831A (en) * | 1982-04-13 | 1984-01-04 | Beringer Co Inc | Process for hydrolysis removal of condensation polymers from various objects |
-
1960
- 1960-03-31 GB GB1146860A patent/GB883706A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2121831A (en) * | 1982-04-13 | 1984-01-04 | Beringer Co Inc | Process for hydrolysis removal of condensation polymers from various objects |
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