GB756863A - Process for the recovery of secondary tin from tin coated metal objects - Google Patents

Process for the recovery of secondary tin from tin coated metal objects

Info

Publication number
GB756863A
GB756863A GB2090353A GB2090353A GB756863A GB 756863 A GB756863 A GB 756863A GB 2090353 A GB2090353 A GB 2090353A GB 2090353 A GB2090353 A GB 2090353A GB 756863 A GB756863 A GB 756863A
Authority
GB
United Kingdom
Prior art keywords
tin
solution
stannate
alkali
sulphate
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
GB2090353A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2090353A priority Critical patent/GB756863A/en
Publication of GB756863A publication Critical patent/GB756863A/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
    • C22B25/00—Obtaining tin
    • C22B25/06—Obtaining tin from scrap, especially tin scrap
    • 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)
  • Chemically Coating (AREA)

Abstract

A solution of alkali metal stannate and/or stannite, formed by dissolving the tin from a tin-coated metal with a solution of (e.g. 5-10 per cent) caustic alkali into which (in the case of stannate) carbon dioxide-free air or oxygen is passed, is treated with an alkali earth metal hydroxide to produce the insoluble alkaline earth stannate, and/or stannite (e.g. barium stannate) which is removed, and the remaining solution recycled. The precipitated salt may be treated with sulphuric acid solution to form barium sulphate and stannous or stannic sulphate or with an alkali metal sulphate to form barium sulphate and alkali metal stannate or stannite, or with hydrochloric acid solution in the stoichiometric amount required to form alkaline earth metal chloride and to free tin as more or less hydrated oxide.ALSO:A tin coating, together with its corrosion products is removed from the metallic base by reacting the coated article with a solution of caustic alkali and removing tin from the resulting solution by addition of one or more of the alkaline earth hydroxides, the solution freed from the tin being recycled without further treatment to the tin dissolving stage.
GB2090353A 1953-07-28 1953-07-28 Process for the recovery of secondary tin from tin coated metal objects Expired GB756863A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2090353A GB756863A (en) 1953-07-28 1953-07-28 Process for the recovery of secondary tin from tin coated metal objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2090353A GB756863A (en) 1953-07-28 1953-07-28 Process for the recovery of secondary tin from tin coated metal objects

Publications (1)

Publication Number Publication Date
GB756863A true GB756863A (en) 1956-09-12

Family

ID=10153729

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2090353A Expired GB756863A (en) 1953-07-28 1953-07-28 Process for the recovery of secondary tin from tin coated metal objects

Country Status (1)

Country Link
GB (1) GB756863A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3542507A (en) * 1967-12-01 1970-11-24 Gen Mills Inc Recovery of tin from tin bearing solutions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3542507A (en) * 1967-12-01 1970-11-24 Gen Mills Inc Recovery of tin from tin bearing solutions

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