GB1070814A - Process for production of pure selenium - Google Patents

Process for production of pure selenium

Info

Publication number
GB1070814A
GB1070814A GB2963765A GB2963765A GB1070814A GB 1070814 A GB1070814 A GB 1070814A GB 2963765 A GB2963765 A GB 2963765A GB 2963765 A GB2963765 A GB 2963765A GB 1070814 A GB1070814 A GB 1070814A
Authority
GB
United Kingdom
Prior art keywords
precipitate
pure selenium
solution
production
stirring
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
GB2963765A
Inventor
Rolf Wagenmann
Gunther Wehle
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.)
Mansfeld Kombinat Wilhelm Pieck VEB
Original Assignee
Mansfeld Kombinat Wilhelm Pieck VEB
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 Mansfeld Kombinat Wilhelm Pieck VEB filed Critical Mansfeld Kombinat Wilhelm Pieck VEB
Priority to GB2963765A priority Critical patent/GB1070814A/en
Publication of GB1070814A publication Critical patent/GB1070814A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B19/00—Selenium; Tellurium; Compounds thereof
    • C01B19/02—Elemental selenium or tellurium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Pure selenium is obtained from impure selenite solutions, which may contain nitrate, by a process comprising acidifying the solution, adding a solution of a magnesium salt and an ammonium salt, adding ammonia to precipitate crystalline MgSeO36H2O, the impurities remaining in the original solution; filtering the precipitate, dissolving it in dilute HCl or H2SO4 and adding SO2 to precipitate the pure selenium. The ammonia, which may be gaseous or aqueous, is preferably added with stirring at 60-70 DEG C. until a pH of 8 is obtained, the stirring being continued for 3 hours.
GB2963765A 1965-07-13 1965-07-13 Process for production of pure selenium Expired GB1070814A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2963765A GB1070814A (en) 1965-07-13 1965-07-13 Process for production of pure selenium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2963765A GB1070814A (en) 1965-07-13 1965-07-13 Process for production of pure selenium

Publications (1)

Publication Number Publication Date
GB1070814A true GB1070814A (en) 1967-06-07

Family

ID=10294706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2963765A Expired GB1070814A (en) 1965-07-13 1965-07-13 Process for production of pure selenium

Country Status (1)

Country Link
GB (1) GB1070814A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102757023A (en) * 2012-07-23 2012-10-31 济源市金利冶炼有限责任公司 Method for recovering selenium from lead smelting soot

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102757023A (en) * 2012-07-23 2012-10-31 济源市金利冶炼有限责任公司 Method for recovering selenium from lead smelting soot
CN102757023B (en) * 2012-07-23 2014-08-13 济源市金利冶炼有限责任公司 Method for recovering selenium from lead smelting soot

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