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GB818747A - Improvements in the removal of arsenic and antimony from roasted sulphidic iron ores, especially roasted iron pyrites, and in the halogenation of the non-ferrous metals contained in these roasted ores - Google Patents

Improvements in the removal of arsenic and antimony from roasted sulphidic iron ores, especially roasted iron pyrites, and in the halogenation of the non-ferrous metals contained in these roasted ores

Info

Publication number
GB818747A
GB818747A GB37239/57A GB3723957A GB818747A GB 818747 A GB818747 A GB 818747A GB 37239/57 A GB37239/57 A GB 37239/57A GB 3723957 A GB3723957 A GB 3723957A GB 818747 A GB818747 A GB 818747A
Authority
GB
United Kingdom
Prior art keywords
roasted
sulphur
iron
ores
antimony
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
GB37239/57A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB818747A publication Critical patent/GB818747A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00Preliminary treatment of ores or scrap
    • C22B1/02Roasting processes
    • C22B1/08Chloridising roasting

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Roasted sulphidic iron ores containing antimony and arsenic are reacted at above 500 DEG C. with phosgene, a sulphur halogen compound (S2Cl2, SCl2), a sulphur oxyhalogen compound (SOCl2, SO2Cl2), with a sulphur fluorine compound corresponding to said sulphur chlorine compounds, with the thermal decomposition products thereof (CO and Cl2) or with substances which react together in the vapour phase to form said compounds (SO2 and halogen, sulphur vapour and halogen), all of these compounds or mixtures being diluted for use with such an amount of an inert gas that the iron in the ore remains substantially unattacked. The reaction may be performed in a multishelf, rotary or fluidized furnace. In the examples, a roasted iron pyrites ore containing arsenic, antimony, copper, lead and cobalt was reacted at 800 DEG C. in a rotary tubular furnace provided with shelves parallel to the axis, with sulphur chloride, sulphuryl chloride, thionyl fluoride and phosgene respectively, said gases being diluted in ratios between 1:5 up to 1:50 with nitrogen. The non-ferrous metals were present only in very small quantities after the product was leached with 4 per cent hydrochloric acid. Specification 749,078 is referred to.
GB37239/57A 1956-12-05 1957-11-29 Improvements in the removal of arsenic and antimony from roasted sulphidic iron ores, especially roasted iron pyrites, and in the halogenation of the non-ferrous metals contained in these roasted ores Expired GB818747A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE818747X 1956-12-05

Publications (1)

Publication Number Publication Date
GB818747A true GB818747A (en) 1959-08-19

Family

ID=6735522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37239/57A Expired GB818747A (en) 1956-12-05 1957-11-29 Improvements in the removal of arsenic and antimony from roasted sulphidic iron ores, especially roasted iron pyrites, and in the halogenation of the non-ferrous metals contained in these roasted ores

Country Status (1)

Country Link
GB (1) GB818747A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649245A (en) * 1968-07-26 1972-03-14 Montedison Spa Process for the purification of pyrite cinders from nonferrous metals, from arsenic and from sulfur
CN106381396A (en) * 2016-09-13 2017-02-08 昆明理工大学 Method for separating arsenic from antimony as well as recovering antimony through roasting of high arsenic-antimony smoke by solid oxidant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649245A (en) * 1968-07-26 1972-03-14 Montedison Spa Process for the purification of pyrite cinders from nonferrous metals, from arsenic and from sulfur
CN106381396A (en) * 2016-09-13 2017-02-08 昆明理工大学 Method for separating arsenic from antimony as well as recovering antimony through roasting of high arsenic-antimony smoke by solid oxidant

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