GB2017670A - Process for the Treatment of Metal-Bearing Dusts and Residues of the Metallurgical Industry - Google Patents

Process for the Treatment of Metal-Bearing Dusts and Residues of the Metallurgical Industry

Info

Publication number
GB2017670A
GB2017670A GB7911758A GB7911758A GB2017670A GB 2017670 A GB2017670 A GB 2017670A GB 7911758 A GB7911758 A GB 7911758A GB 7911758 A GB7911758 A GB 7911758A GB 2017670 A GB2017670 A GB 2017670A
Authority
GB
United Kingdom
Prior art keywords
residues
slurry
metal
treatment
metallurgical industry
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.)
Granted
Application number
GB7911758A
Other versions
GB2017670B (en
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.)
Outokumpu Oyj
Original Assignee
Outokumpu Oyj
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 Oyj filed Critical Outokumpu Oyj
Publication of GB2017670A publication Critical patent/GB2017670A/en
Application granted granted Critical
Publication of GB2017670B publication Critical patent/GB2017670B/en
Expired 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
    • 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

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.
GB7911758A 1978-04-04 1979-04-04 Process for the treatment of metal-bearing dusts and residues of the metallurgical industry Expired GB2017670B (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
GB2017670A true GB2017670A (en) 1979-10-10
GB2017670B GB2017670B (en) 1982-06-03

Family

ID=8511601

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7911758A Expired GB2017670B (en) 1978-04-04 1979-04-04 Process for the treatment of metal-bearing dusts and residues of 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)

Cited By (8)

* 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
US4404027A (en) * 1981-03-05 1983-09-13 Voest-Alpine Aktiengesellschaft Method of recovering heavy metals
EP0390293A1 (en) * 1989-03-30 1990-10-03 Kemira Pigments B.V. A process of treating metal chloride wastes
EP0427341A1 (en) * 1989-11-10 1991-05-15 Hoogovens Groep B.V. Method for selectively separating a non-ferrous metal
BE1006509A3 (en) * 1991-09-23 1994-10-04 Kronos Titan Gmbh Process for products that could waste removal from metal chlorides without inert fraction.
WO1997001650A1 (en) * 1995-06-26 1997-01-16 International Solidification, Inc. Method of treating steel mill waste
WO1998049105A1 (en) * 1997-04-29 1998-11-05 Bethlehem Steel Corporation Wastewater treatment process for vacuum degasser effluent
EP1319727A2 (en) * 2001-12-11 2003-06-18 CENTRO SVILUPPO MATERIALI S.p.A. Pyro-hydrometallurgical process for the recovery of zinc, lead and other value metals from iron- and steelmaking shop dusts

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE19911168A1 (en) * 1999-03-12 2000-09-14 Abb Patent Gmbh Process and arrangement for the treatment of chloride-containing dust

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

Cited By (9)

* 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
US4404027A (en) * 1981-03-05 1983-09-13 Voest-Alpine Aktiengesellschaft Method of recovering heavy metals
EP0390293A1 (en) * 1989-03-30 1990-10-03 Kemira Pigments B.V. A process of treating metal chloride wastes
EP0427341A1 (en) * 1989-11-10 1991-05-15 Hoogovens Groep B.V. Method for selectively separating a non-ferrous metal
BE1006509A3 (en) * 1991-09-23 1994-10-04 Kronos Titan Gmbh Process for products that could waste removal from metal chlorides without inert fraction.
WO1997001650A1 (en) * 1995-06-26 1997-01-16 International Solidification, Inc. Method of treating steel mill waste
WO1998049105A1 (en) * 1997-04-29 1998-11-05 Bethlehem Steel Corporation Wastewater treatment process for vacuum degasser effluent
EP1319727A2 (en) * 2001-12-11 2003-06-18 CENTRO SVILUPPO MATERIALI S.p.A. Pyro-hydrometallurgical process for the recovery of zinc, lead and other value metals from iron- and steelmaking shop dusts
EP1319727A3 (en) * 2001-12-11 2003-10-15 CENTRO SVILUPPO MATERIALI S.p.A. Pyro-hydrometallurgical process for the recovery of zinc, lead and other value metals from iron- and steelmaking shop dusts

Also Published As

Publication number Publication date
IT1115084B (en) 1986-02-03
IT7948582A0 (en) 1979-04-02
SE7902955L (en) 1979-10-05
AT367800B (en) 1982-07-26
DE2911855C2 (en) 1982-08-12
JPS5511187A (en) 1980-01-25
DE2911855A1 (en) 1979-10-11
ATA239779A (en) 1981-12-15
FR2421951A1 (en) 1979-11-02
JPS6153414B2 (en) 1986-11-18
FI58349B (en) 1980-09-30
GB2017670B (en) 1982-06-03
FI58349C (en) 1981-01-12
SE444579B (en) 1986-04-21
FR2421951B1 (en) 1985-03-01
FI781035A (en) 1979-10-05

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee