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WO1991005881A3 - Procede d'elimination de chrome a partir de matiere residuelle contenant du chrome - Google Patents

Procede d'elimination de chrome a partir de matiere residuelle contenant du chrome Download PDF

Info

Publication number
WO1991005881A3
WO1991005881A3 PCT/US1990/005827 US9005827W WO9105881A3 WO 1991005881 A3 WO1991005881 A3 WO 1991005881A3 US 9005827 W US9005827 W US 9005827W WO 9105881 A3 WO9105881 A3 WO 9105881A3
Authority
WO
WIPO (PCT)
Prior art keywords
chromium
waste material
chromates
subjected
water soluble
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.)
Ceased
Application number
PCT/US1990/005827
Other languages
English (en)
Other versions
WO1991005881A2 (fr
Inventor
Omar Baturay
James E Shirk
Adam L Sigerson
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.)
Chrome Technology Inc
Original Assignee
Chrome Technology Inc
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 Chrome Technology Inc filed Critical Chrome Technology Inc
Publication of WO1991005881A2 publication Critical patent/WO1991005881A2/fr
Publication of WO1991005881A3 publication Critical patent/WO1991005881A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • C01G37/14—Chromates; Bichromates
    • 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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/001—Dry processes
    • C22B7/002—Dry processes by treating with halogens, sulfur or compounds thereof; by carburising, by treating with hydrogen (hydriding)
    • 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)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

On a mis au point un procédé d'élimination de chrome d'une matière résiduelle contenant du chrome, consistant à sécher la matière résiduelle par chauffage indirect, à la réduire à une grosseur particulaire inférieure à 0,105 mm, à la mélanger avec des réactifs alcalins et oxydants et à la faire réagir dans une cuve de réaction par chauffage indirect, approximativement selon la condition d'oxygène st÷chiométrique, afin de former une matière de réaction contenant des chromates solubles dans l'eau. On refroidit et on recalibre la matière de réaction, puis on la soumet à une extraction par solvant aqueux afin de produire une phase solide ne contenant pas de chrome, ainsi qu'une phase aqueuse contenant des chromates solubles dans l'eau. On soumet cette phase aqueuse à une évaporation ayant pour résultat une phase de chromates concentrés. Ainsi, la matière résiduelle est rendue non dangereuse et le chrome est récupéré sous forme de chromates utiles.
PCT/US1990/005827 1989-10-13 1990-10-11 Procede d'elimination de chrome a partir de matiere residuelle contenant du chrome Ceased WO1991005881A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US421,136 1989-10-13
US07/421,136 US5007960A (en) 1989-10-13 1989-10-13 Method for removing chromium from chromium containing waste material

Publications (2)

Publication Number Publication Date
WO1991005881A2 WO1991005881A2 (fr) 1991-05-02
WO1991005881A3 true WO1991005881A3 (fr) 1991-05-30

Family

ID=23669306

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/005827 Ceased WO1991005881A2 (fr) 1989-10-13 1990-10-11 Procede d'elimination de chrome a partir de matiere residuelle contenant du chrome

Country Status (2)

Country Link
US (1) US5007960A (fr)
WO (1) WO1991005881A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9300598A (nl) * 1993-04-06 1994-11-01 Hoogovens Tech Services Werkwijze voor het opwerken van chroomhoudend slib, in het bijzonder van slib houdende chroomhydroxyde.
TR199902664T2 (xx) * 1997-04-28 2000-01-21 Kaszas-Savos Melania At�k ve art�k maddelerden tekrar ham madde elde edilmesine dair i�lem ve tesis.
US6607474B2 (en) 2000-06-30 2003-08-19 Rmt, Inc. Method for stabilizing chromium-contaminated materials
BRPI1010875A2 (pt) * 2009-04-30 2016-03-15 World Resources Co processo para a recuperação de metais e compostos metálicos de minério extraído e de outras matérias-primas contendo metais
CN102173455B (zh) * 2011-01-17 2013-02-27 湖南农业大学 一种利用含铬废渣生产含铬产品的方法
GB201417128D0 (en) * 2014-09-29 2014-11-12 Ds Smith Plastics Ltd Dispensing assembly
CN116119620B (zh) * 2023-03-03 2024-08-23 湖南恒光科技股份有限公司 一种氯酸钠芒硝脱铬工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042474A (en) * 1973-08-02 1977-08-16 Pako Corporation Separating nickel, cobalt and chromium from iron in metallurgical products
US4162295A (en) * 1977-11-14 1979-07-24 Allied Chemical Corporation Method for production of alkali metal chromates from chrome ores
US4207295A (en) * 1979-02-13 1980-06-10 Union Carbide Corporation Processing of chromium ore
US4318788A (en) * 1979-12-12 1982-03-09 Andco Environmental Processes, Inc. Chromate recovery process
US4668483A (en) * 1986-05-12 1987-05-26 Gte Products Corporation Process for recovery of chromium
US4966760A (en) * 1988-08-26 1990-10-30 Ladd Judith A Method for recovering chromium from chromium-bearing material

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3932598A (en) * 1970-04-24 1976-01-13 Cooper Hugh S Process for producing alkali metal chromates and dichromates
US3816094A (en) * 1972-03-09 1974-06-11 Allied Chem Method for the conversion of chromite ore to sodium chromate
US3816095A (en) * 1972-03-09 1974-06-11 Allied Chem Method for recovering chromium values from chromite ore
FR2179650B1 (fr) * 1972-04-14 1974-07-26 Ugine Kuhlmann
US3981965A (en) * 1972-08-17 1976-09-21 Allied Chemical Corporation Suppression of water pollution caused by solid wastes containing chromium compounds
US3819800A (en) * 1972-08-28 1974-06-25 Diamond Shamrock Corp Alkali metal chromate production
US3937785A (en) * 1974-09-17 1976-02-10 Allied Chemical Corporation Treatment of chromium ore residues to suppress pollution
US4171248A (en) * 1977-11-03 1979-10-16 Ppg Industries, Inc. Method of opening chrome ore

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042474A (en) * 1973-08-02 1977-08-16 Pako Corporation Separating nickel, cobalt and chromium from iron in metallurgical products
US4162295A (en) * 1977-11-14 1979-07-24 Allied Chemical Corporation Method for production of alkali metal chromates from chrome ores
US4207295A (en) * 1979-02-13 1980-06-10 Union Carbide Corporation Processing of chromium ore
US4318788A (en) * 1979-12-12 1982-03-09 Andco Environmental Processes, Inc. Chromate recovery process
US4668483A (en) * 1986-05-12 1987-05-26 Gte Products Corporation Process for recovery of chromium
US4966760A (en) * 1988-08-26 1990-10-30 Ladd Judith A Method for recovering chromium from chromium-bearing material

Also Published As

Publication number Publication date
WO1991005881A2 (fr) 1991-05-02
US5007960A (en) 1991-04-16

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