CZ170394A3 - Process and apparatus for reducing hexavalent chromium contained in a residue from chrome ore dressing process - Google Patents

Process and apparatus for reducing hexavalent chromium contained in a residue from chrome ore dressing process Download PDF

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Publication number
CZ170394A3
CZ170394A3 CZ941703A CZ170394A CZ170394A3 CZ 170394 A3 CZ170394 A3 CZ 170394A3 CZ 941703 A CZ941703 A CZ 941703A CZ 170394 A CZ170394 A CZ 170394A CZ 170394 A3 CZ170394 A3 CZ 170394A3
Authority
CZ
Czechia
Prior art keywords
hexavalent chromium
sulfur
derivatives
chromium
reducing
Prior art date
Application number
CZ941703A
Other languages
Czech (cs)
English (en)
Inventor
Giuseppe Bruzzone
Diego Perrone
Giacomo Bruno
Original Assignee
Stoppani Luigi Spa
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 Stoppani Luigi Spa filed Critical Stoppani Luigi Spa
Publication of CZ170394A3 publication Critical patent/CZ170394A3/cs

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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
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/32—Obtaining chromium
    • 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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/08—Dry methods smelting of sulfides or formation of mattes by sulfides; Roasting reaction methods
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Removal Of Specific Substances (AREA)
CZ941703A 1992-01-21 1992-12-29 Process and apparatus for reducing hexavalent chromium contained in a residue from chrome ore dressing process CZ170394A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT92MI92 IT1262918B (it) 1992-01-21 1992-01-21 Procedimento ed impianto per la riduzione del cromo esavalente contenuto nei residui della lavorazione dei minerali di cromo

Publications (1)

Publication Number Publication Date
CZ170394A3 true CZ170394A3 (en) 1995-08-16

Family

ID=11361603

Family Applications (1)

Application Number Title Priority Date Filing Date
CZ941703A CZ170394A3 (en) 1992-01-21 1992-12-29 Process and apparatus for reducing hexavalent chromium contained in a residue from chrome ore dressing process

Country Status (14)

Country Link
EP (1) EP0621905A1 (it)
CN (1) CN1074948A (it)
AU (1) AU3347593A (it)
BR (1) BR9207057A (it)
CZ (1) CZ170394A3 (it)
IT (1) IT1262918B (it)
MX (1) MX9300307A (it)
PL (1) PL171592B1 (it)
RO (1) RO110458B1 (it)
RU (1) RU2096511C1 (it)
SK (1) SK84194A3 (it)
TR (1) TR26598A (it)
WO (1) WO1993014232A1 (it)
ZA (1) ZA9343B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA200706525B (en) 2005-02-08 2009-01-28 Cromotecnica Mexico Sa De Cv Process and plant for converting hazardous waste containing chromium VI into non-hazardous waste
DE202008014318U1 (de) 2008-10-28 2010-04-01 Dr. Hahn Gmbh & Co. Kg Band zur um eine Scharnierachse scharniergelenkigen Verbindung eines Flügels an einem Rahmen
PT2870107T (pt) 2012-07-06 2018-03-28 Lanxess Deutschland Gmbh Processo para redução de cromo hexavalente em sólidos oxídicos

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1055953B (it) * 1976-02-24 1982-01-11 Stoppani P & Co Procedimento di decontaminazione di materiale di scarto proveniente dalla lavorazione di minerali di cromo mediante trattamento conzolfo per via umida
JP2655864B2 (ja) * 1988-03-14 1997-09-24 昭和電工株式会社 高還元クロム鉱石粉体の製造方法

Also Published As

Publication number Publication date
AU3347593A (en) 1993-08-03
CN1074948A (zh) 1993-08-04
WO1993014232A1 (en) 1993-07-22
TR26598A (tr) 1995-03-15
IT1262918B (it) 1996-07-22
ITMI920092A1 (it) 1993-07-21
PL171592B1 (pl) 1997-05-30
ZA9343B (en) 1993-08-05
EP0621905A1 (en) 1994-11-02
BR9207057A (pt) 1995-12-05
MX9300307A (es) 1993-12-01
SK84194A3 (en) 1995-08-09
RU94044672A (ru) 1996-08-27
RU2096511C1 (ru) 1997-11-20
ITMI920092A0 (it) 1992-01-21
RO110458B1 (ro) 1996-01-30

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