FR2378868A2 - Antimony extraction by chloriding antimony ores - using calcium chloride in an oxidising atmosphere contg. sulphur dioxide - Google Patents

Antimony extraction by chloriding antimony ores - using calcium chloride in an oxidising atmosphere contg. sulphur dioxide

Info

Publication number
FR2378868A2
FR2378868A2 FR7702594A FR7702594A FR2378868A2 FR 2378868 A2 FR2378868 A2 FR 2378868A2 FR 7702594 A FR7702594 A FR 7702594A FR 7702594 A FR7702594 A FR 7702594A FR 2378868 A2 FR2378868 A2 FR 2378868A2
Authority
FR
France
Prior art keywords
ores
antimony
chloriding
calcium chloride
sulphur dioxide
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.)
Granted
Application number
FR7702594A
Other languages
French (fr)
Other versions
FR2378868B2 (en
Inventor
Gilles Barbery
Rene Bloise
Jean-Paul Bourgeois
Jean-Marie Winter
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.)
Bureau de Recherches Geologiques et Minieres BRGM
Original Assignee
Bureau de Recherches Geologiques et Minieres BRGM
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 Bureau de Recherches Geologiques et Minieres BRGM filed Critical Bureau de Recherches Geologiques et Minieres BRGM
Priority to FR7702594A priority Critical patent/FR2378868A2/en
Priority to GB1111577A priority patent/GB1570127A/en
Priority to MX16850577A priority patent/MX144450A/en
Publication of FR2378868A2 publication Critical patent/FR2378868A2/en
Application granted granted Critical
Publication of FR2378868B2 publication Critical patent/FR2378868B2/fr
Granted 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
    • C22B30/00—Obtaining antimony, arsenic or bismuth
    • C22B30/02—Obtaining antimony

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

In the extn. of Sb from Sb ores by hot treatment with a chloriding agent, the Sb ore is contacted with CaCl2 in an oxidising atmos. in the presence of SO2 and at 450-600 degrees C. The conditions are such that S-contg. ores can be oxidised to form in one part of the reaction zone oxidn. prods. and Sb oxidn. prods. and in another part the Sb oxidn. prods. are chlorided. In the case of oxidised ores direct chloriding is achieved and the volatile Sb chlorides are recovered. S impurities in the Sb and the formation of H2S are avoided. Waste CaCl2 can be used for chloriding the ores and problems of regeneration inherent in the process using Cl2 or HCl are atmos. and Sb2O5 promotes this reaction. in an oxidising atmos. and Sb2O5 promotes this reaction.
FR7702594A 1976-03-26 1977-01-31 Antimony extraction by chloriding antimony ores - using calcium chloride in an oxidising atmosphere contg. sulphur dioxide Granted FR2378868A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7702594A FR2378868A2 (en) 1977-01-31 1977-01-31 Antimony extraction by chloriding antimony ores - using calcium chloride in an oxidising atmosphere contg. sulphur dioxide
GB1111577A GB1570127A (en) 1976-03-26 1977-03-16 Extraction of antimony from ores
MX16850577A MX144450A (en) 1976-03-26 1977-03-25 IMPROVED PROCESS FOR THE EXTRACTION OF ANTIMONY THROUGH CHLORINATION OF MINES CONTAINING IT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7702594A FR2378868A2 (en) 1977-01-31 1977-01-31 Antimony extraction by chloriding antimony ores - using calcium chloride in an oxidising atmosphere contg. sulphur dioxide

Publications (2)

Publication Number Publication Date
FR2378868A2 true FR2378868A2 (en) 1978-08-25
FR2378868B2 FR2378868B2 (en) 1980-04-25

Family

ID=9186076

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7702594A Granted FR2378868A2 (en) 1976-03-26 1977-01-31 Antimony extraction by chloriding antimony ores - using calcium chloride in an oxidising atmosphere contg. sulphur dioxide

Country Status (1)

Country Link
FR (1) FR2378868A2 (en)

Also Published As

Publication number Publication date
FR2378868B2 (en) 1980-04-25

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