BR9207057A - Process for obtaining water-insoluble chromium compounds and installation for reducing hexavalent chromium - Google Patents

Process for obtaining water-insoluble chromium compounds and installation for reducing hexavalent chromium

Info

Publication number
BR9207057A
BR9207057A BR9207057A BR9207057A BR9207057A BR 9207057 A BR9207057 A BR 9207057A BR 9207057 A BR9207057 A BR 9207057A BR 9207057 A BR9207057 A BR 9207057A BR 9207057 A BR9207057 A BR 9207057A
Authority
BR
Brazil
Prior art keywords
installation
chromium
obtaining water
insoluble
reducing hexavalent
Prior art date
Application number
BR9207057A
Other languages
Portuguese (pt)
Inventor
Giuseppe Bruzzone
Diego Perrone
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 BR9207057A publication Critical patent/BR9207057A/en

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)
  • 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)
BR9207057A 1992-01-21 1992-12-29 Process for obtaining water-insoluble chromium compounds and installation for reducing hexavalent chromium BR9207057A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT92MI92 IT1262918B (en) 1992-01-21 1992-01-21 PROCEDURE AND PLANT FOR THE REDUCTION OF HEXAVALENT CHROMIUM CONTAINED IN THE RESIDUES OF THE PROCESSING OF CHROME MINERALS
PCT/EP1992/003007 WO1993014232A1 (en) 1992-01-21 1992-12-29 Process and plant for the reduction of hexavalent chromium contained in the residue resulting from the processing of chromium minerals

Publications (1)

Publication Number Publication Date
BR9207057A true BR9207057A (en) 1995-12-05

Family

ID=11361603

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9207057A BR9207057A (en) 1992-01-21 1992-12-29 Process for obtaining water-insoluble chromium compounds and installation for reducing hexavalent chromium

Country Status (14)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602006004968D1 (en) 2005-02-08 2009-03-12 Cromotecnica Mexico Sa De Cv METHOD AND APPENDIX FOR THE CONVERSION OF CHROMIUM-DANGEROUS WASTE INTO UNFOLLOWED WASTE
DE202008014318U1 (en) 2008-10-28 2010-04-01 Dr. Hahn Gmbh & Co. Kg Band to hinged about a hinge axis connecting a wing to a frame
NO2870107T3 (en) 2012-07-06 2018-06-16

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1055953B (en) * 1976-02-24 1982-01-11 Stoppani P & Co DECONTAMINATION PROCESS OF WASTE MATERIAL COMING FROM THE PROCESSING OF CHROME MINERALS THROUGH WET CONZOLFO TREATMENT
JP2655864B2 (en) * 1988-03-14 1997-09-24 昭和電工株式会社 Method for producing high reduced chromium ore powder

Also Published As

Publication number Publication date
CZ170394A3 (en) 1995-08-16
TR26598A (en) 1995-03-15
MX9300307A (en) 1993-12-01
CN1074948A (en) 1993-08-04
AU3347593A (en) 1993-08-03
PL171592B1 (en) 1997-05-30
IT1262918B (en) 1996-07-22
WO1993014232A1 (en) 1993-07-22
ZA9343B (en) 1993-08-05
RU94044672A (en) 1996-08-27
RU2096511C1 (en) 1997-11-20
EP0621905A1 (en) 1994-11-02
ITMI920092A1 (en) 1993-07-21
SK84194A3 (en) 1995-08-09
RO110458B1 (en) 1996-01-30
ITMI920092A0 (en) 1992-01-21

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Legal Events

Date Code Title Description
EE Request for examination
FD3 Appl. lapsed due to non-payment of renewal fee
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 15A, 16A, 17A, 18A E 19A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: NAO APRESENTADA A GUIA DE CUMPRIMENTO DE EXIGENCIA. REFERENTE AS 3A, 4A, 5A, 6A, 7A, 8A, 9A, 10A, 11A, 12A, 13A, 14A, 15A, 16A, 17A, 18A E 19A ANUIDADES.