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ZA9343B - Process and plant for the reduction of hexavalent chromiun contained in the residue resulting from the processing of chromium minerals. - Google Patents

Process and plant for the reduction of hexavalent chromiun contained in the residue resulting from the processing of chromium minerals.

Info

Publication number
ZA9343B
ZA9343B ZA9343A ZA9343A ZA9343B ZA 9343 B ZA9343 B ZA 9343B ZA 9343 A ZA9343 A ZA 9343A ZA 9343 A ZA9343 A ZA 9343A ZA 9343 B ZA9343 B ZA 9343B
Authority
ZA
South Africa
Prior art keywords
chromiun
hexavalent
plant
contained
reduction
Prior art date
Application number
ZA9343A
Other languages
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 ZA9343B publication Critical patent/ZA9343B/xx

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
    • 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)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (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)
ZA9343A 1992-01-21 1993-01-05 Process and plant for the reduction of hexavalent chromiun contained in the residue resulting from the processing of chromium minerals. ZA9343B (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
ZA9343B true ZA9343B (en) 1993-08-05

Family

ID=11361603

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9343A ZA9343B (en) 1992-01-21 1993-01-05 Process and plant for the reduction of hexavalent chromiun contained in the residue resulting from the processing of chromium minerals.

Country Status (14)

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

Families Citing this family (2)

* 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
US9725364B2 (en) * 2012-07-06 2017-08-08 Lanxess Deutschland Gmbh Method for reducing hexavalent chromium in oxidic solids

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
MX9300307A (es) 1993-12-01
IT1262918B (it) 1996-07-22
TR26598A (tr) 1995-03-15
AU3347593A (en) 1993-08-03
SK84194A3 (en) 1995-08-09
ITMI920092A0 (it) 1992-01-21
RU2096511C1 (ru) 1997-11-20
EP0621905A1 (fr) 1994-11-02
RO110458B1 (ro) 1996-01-30
RU94044672A (ru) 1996-08-27
WO1993014232A1 (fr) 1993-07-22
BR9207057A (pt) 1995-12-05
PL171592B1 (pl) 1997-05-30
CN1074948A (zh) 1993-08-04
ITMI920092A1 (it) 1993-07-21
CZ170394A3 (en) 1995-08-16

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