SE7902955L - PROCEDURE FOR TREATMENT OF METAL-CONTAINING SUBSTANCES AND WASTE FROM THE METALLURGICAL INDUSTRY - Google Patents

PROCEDURE FOR TREATMENT OF METAL-CONTAINING SUBSTANCES AND WASTE FROM THE METALLURGICAL INDUSTRY

Info

Publication number
SE7902955L
SE7902955L SE7902955A SE7902955A SE7902955L SE 7902955 L SE7902955 L SE 7902955L SE 7902955 A SE7902955 A SE 7902955A SE 7902955 A SE7902955 A SE 7902955A SE 7902955 L SE7902955 L SE 7902955L
Authority
SE
Sweden
Prior art keywords
slurry
metal
waste
procedure
treatment
Prior art date
Application number
SE7902955A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE444579B (en
Inventor
F H Tuovinen
M O Vattulainen
H P Saari
A R Kortehisto
Original Assignee
Outokumpu Oy
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 Outokumpu Oy filed Critical Outokumpu Oy
Publication of SE7902955L publication Critical patent/SE7902955L/en
Publication of SE444579B publication Critical patent/SE444579B/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
    • 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
    • C22B7/02—Working-up flue dust
    • 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
    • C22B7/006—Wet processes
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The hazards to pollution of the environment by metal-bearing dusts and residues are reduced by a process which comprises slurrying the residues in water or a pickling-acid slurry, adjusting the pH of the resultant slurry, when necessary, to 7 or above in order to precipitate compounds of the heavy metals present in the slurry, dehydrating the slurry, and fragmenting the product of the dehydration. A reducing agent may be added to reduce hexavalent chromium if present. The fragments of filter cake can be worked up, in a smelting furnace to yield a metallic body and slag, the flue gas being purified.
SE7902955A 1978-04-04 1979-04-03 PROCEDURE FOR THE TREATMENT OF METALLIC SUBSTANCE AND WASTE FROM THE METALLURGICAL INDUSTRY SE444579B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI781035A FI58349C (en) 1978-04-04 1978-04-04 FOERFARANDE FOER BEHANDLING AV METALLHALTIGA STOFT OCH AVFALL FRAON METALLURGISK INDUSTRI

Publications (2)

Publication Number Publication Date
SE7902955L true SE7902955L (en) 1979-10-05
SE444579B SE444579B (en) 1986-04-21

Family

ID=8511601

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7902955A SE444579B (en) 1978-04-04 1979-04-03 PROCEDURE FOR THE TREATMENT OF METALLIC SUBSTANCE AND WASTE FROM THE METALLURGICAL INDUSTRY

Country Status (8)

Country Link
JP (1) JPS5511187A (en)
AT (1) AT367800B (en)
DE (1) DE2911855C2 (en)
FI (1) FI58349C (en)
FR (1) FR2421951A1 (en)
GB (1) GB2017670B (en)
IT (1) IT1115084B (en)
SE (1) SE444579B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4326883A (en) * 1979-07-10 1982-04-27 Inland Steel Company Process for deoiling and agglomerating oil-bearing mill scale
AT370138B (en) * 1981-03-05 1983-03-10 Voest Alpine Ag METHOD FOR RECOVERING HEAVY METALS
US4425228A (en) 1982-03-02 1984-01-10 Bethlehem Steel Corporation Wet-classifying method for recovery of carbon and iron-bearing particles
JPH0234615U (en) * 1988-08-26 1990-03-06
GB8907163D0 (en) * 1989-03-30 1989-05-10 Shell Int Research A process of treating metal chloride wastes
NL8902783A (en) * 1989-11-10 1991-06-03 Hoogovens Groep Bv METHOD FOR SELECTIVELY SEPARATING A NON-FERRO METAL.
DE4131577C2 (en) * 1991-09-23 1999-11-25 Kronos Titan Gmbh Process for producing landfill-capable products from metal chlorides without inert components
US5573576A (en) * 1994-10-24 1996-11-12 International Solidification, Inc. Method of treating steel mill waste
US5792364A (en) * 1997-04-29 1998-08-11 Bethlehem Steel Corporation Wastewater treatment process for vacuum degasser effluent
DE19911168A1 (en) * 1999-03-12 2000-09-14 Abb Patent Gmbh Process and arrangement for the treatment of chloride-containing dust
ITRM20010727A1 (en) * 2001-12-11 2003-06-11 Ct Sviluppo Materiali Spa PYRO-HYDRO-METALLURGICAL PROCEDURE FOR THE RECOVERY OF ZINC, LEAD AND OTHER METALS OF INTEREST FROM POWDERS FROM SIDERUR PLANTS

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51111412A (en) * 1975-03-27 1976-10-01 Toho Aen Kk Wet method of treatment of dust from iron industry
JPS5236501A (en) * 1975-09-18 1977-03-19 Sumitomo Heavy Ind Ltd Method of treating blast furnace slurry containing heavy metals
JPS5295529A (en) * 1976-02-09 1977-08-11 Nittan Co Ltd Separating and recovering method of heavy metals from aqueous suspension of fine carbon particles containing heavy metals
DE2621144C3 (en) * 1976-05-13 1978-11-02 Th. Goldschmidt Ag, 4300 Essen Process for processing non-ferrous metal hydroxide sludge waste

Also Published As

Publication number Publication date
IT1115084B (en) 1986-02-03
DE2911855C2 (en) 1982-08-12
DE2911855A1 (en) 1979-10-11
FR2421951B1 (en) 1985-03-01
FR2421951A1 (en) 1979-11-02
FI781035A (en) 1979-10-05
GB2017670A (en) 1979-10-10
FI58349B (en) 1980-09-30
JPS5511187A (en) 1980-01-25
JPS6153414B2 (en) 1986-11-18
AT367800B (en) 1982-07-26
ATA239779A (en) 1981-12-15
FI58349C (en) 1981-01-12
IT7948582A0 (en) 1979-04-02
SE444579B (en) 1986-04-21
GB2017670B (en) 1982-06-03

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