recover zinc from slag ecofer

  • Zinc recovery from metallurgical slag and dust by

    IntroductionMaterial and MethodsResults and DiscussionConclusionData AccessibilityAuthors' ContributionsFundingCurrently, the main source of zinc metal is the traditional zinc resource—zinc sulfide ores However, as the zinc consumption increases and the zinc sulfide ore grades deteriorate, the gap between supply and demand has become a major problem for the zinc industry [1,2] At the same time, large quantities of metallurgical slag and dust (MSD) are constantly produced during the production of steel, lead and zinc smelting, which causes serious pollution owing to the waste residue A zinc content that is over the pre
  • The recovery of zinc from hot galvanizing slag in an anion

    Sep 15, 2010  The recovery of zinc from hot galvanizing slag in an anionexchange membrane electrolysis reactor Ren X(1), Wei Q, Hu S, Wei S Author information: (1)College of Ocean, Harbin Institute of Technology at Weihai, Weihai, PR China

    Cited by: 19
  • Zinc recovery from metallurgical slag and dust by

    Metallurgical slag and dust (MSD) from lead and zinc smelting, steel dust and galvanized steel scrap are important secondary sources of zinc and other valuable metals This paper describes the production feasibility and rationality of a cleaner zinc recovery process using MSD and a hydrometallurgical method It was found that the addition of CH3COONH4 to a NH3–H2O system promotes zinc

  • The recovery of zinc from hot galvanizing slag in an anion

    This paper reports the optimization of the process parameters for recovery of zinc from hot galvanizing slag in an anionexchange membrane electrolysis reactor The experiments were carried out in an ammoniacal ammonium chloride system The influence of composition of electrolytes, pH, stirring rate, current density and temperature, on cathodic current efficiency, specific power consumption

  • Zinc recovery from metallurgical slag and dust by

    Jul 11, 2018  Metallurgical slag and dust (MSD) from lead and zinc smelting, steel dust and galvanized steel scrap are important secondary sources of zinc and other valuable metals This paper describes the production feasibility and rationality of a cleaner zinc recovery process using MSD and a hydrometallurgical method

    Cited by: 10
  • The recovery of zinc from hot galvanizing slag in an anion

    Oct 01, 2010  This paper reports the optimization of the process parameters for recovery of zinc from hot galvanizing slag in an anionexchange membrane electrolysis reactor The experiments were carried out in an ammoniacal ammonium chloride system The influence of composition of electrolytes, pH, stirring rate, current density and temperature, on cathodic

  • Zinc recovery from metallurgical slag and dust by

    Metallurgical slag and dust (MSD) from lead and zinc smelting, steel dust and galvanized steel scrap are important secondary sources of zinc and other valuable metals This paper describes the production feasibility and rationality of a cleaner zinc recovery process using MSD and

  • (PDF) Zinc recovery from zawar ancient siliceous slag

    Zinc recovery from zawar ancient siliceous slag Download Zinc recovery from zawar ancient siliceous slag Rajan Kumar Related Papers A Review of Supergene Nonsulphide Zinc (SNSZ) Deposits the 2014 Update By Gregor Borg Recovery of zinc from leach residues with minimum iron dissolution using oxidative leaching

  • RECOVERY OF ZINC FROM FERRITE ELECTRIC FURNACE

    recovery, since the zinc femite (ZnFe204) in EAF dust is insoluble and thus the zinc which is present in the zinc femte cm not be recovered in the leaching process In the present work, research on the kinetics of zinc femte formation, the leaching of wic ferrite and EAF dust in caustic media were performed and evaluated The experimental

  • Electrolytic Recovery of Copper and Zinc from Brasses

    methods for the recovery of the metal of electrolytic grade In this furnace treatment, the zinc will oxidize and be lost in the slag However, this can be done only by large copper producing companies which have the facilities for the recovery of copper from sulfide ores The brass would have to be shipped from the

  • Zinc recovery from metallurgical slag and dust by

    Metallurgical slag and dust (MSD) from lead and zinc smelting, steel dust and galvanized steel scrap are important secondary sources of zinc and other valuable metals This paper describes the production feasibility and rationality of a cleaner zinc recovery process using MSD and

  • The recovery of Zn and Pb and the manufacture of

    In the second stage of the process, called oxidation sintering procedure, a lightweight brick was produced Samples containing up to 60 wt% zinc smelting slag and 40 wt% kaolin clay were reduced at 1050°C for 6h, and then sintered at 1050°C for 4h The recoveries of Zn and Pb from the brick are 945 ± 06% and 976 ± 02%, respectively

  • Electrolytic Recovery of Copper and Zinc from Brasses

    methods for the recovery of the metal of electrolytic grade In this furnace treatment, the zinc will oxidize and be lost in the slag However, this can be done only by large copper producing companies which have the facilities for the recovery of copper from sulfide ores The brass would have to be shipped from the

  • Recovery of iron from leadzinc metallurgical slags by

    Abstract: The recovery of iron from iron sinking slag and lead smelter slag was investigated by desulfurizationreduction bath smelting The effects of lead smelter slag (LSS) to iron sinking slag (ISS) mass ratio and temperature were investigated in desulfurization experiments

  • Electrolytic Recovery of Copper and Zinc from Brass

    whereby both the copper and zinc may be recovered In this investigation, the work of Thomas Barker, Jr and Douglas H Swank was continued in an effort to recover both copper and zinc from commercial brass by an electrolytic method Such a method would produce metals which would be equivalent to virgin metals in purity

  • Highpurity zinc and ferroalloy recovery from EAF dusts

    Dec 09, 2002  An innovative pyrohydrometallurgical treatment aimed at recovering metallic zinc from powders rich in ZnO has been realised These powders are produced from the thermal fumigation of EAF dusts (mix of dusts manufactured from carbon steel and stainless steel) in an arcplasma furnace, producing ferroalloys, totally inert slag and ZnOrich powders These powders are treated via a

  • RECYCLING OF COPPER, LEAD AND ZINC BEARING WASTES

    recovery operations Included in the Environment Committee programme, is a requirement to "Identify and assess environmentally sound and economically efficient practices for recovery operations" This Guidance Document is concerned with the principal recovery operations applicable to copper, lead and zinc

  • Recovery of Manganese from Zinc Smelter Slag American

    Using a softwarebased experiment design, the application of the leaching process for the extraction of manganese from Zinc Plant Slag (ZPS) was investigated In this study, the effect of different parameters, ie, H2SO4 concentration, pulp density, agitation rate, temperature and reaction time, was investigated Response Surface Methodology (RSM) based on the Central Composite Design (CCD

  • THE SUBMERGED ARC FURNACE (SAF) STATE OF ART IN

    5th International Slag Valorisation Symposium Leuven 35/04/2017 1 THE SUBMERGED ARC FURNACE (SAF) STATE OF ART IN METAL RECOVERY FROM NONFERROUS SLAGS Bernd FRIEDRICH1, Michael KALISCH2, David FRIEDMANN1, Rolf DEGEL2 1 IME Process Metallurgy and Metal Recycling, RWTH Aachen University, 52072 Aachen, Intzestr 3, Germany 2 SMS Group

  • Zinc production environmental impact GreenSpec

    • Zinc, (aka spelter), is an element with symbol Zn and atomic number 30 • Zinc was known from ancient times, when Brass (ie an alloy of Copper and Zinc) was used • Lohneyes was the first to apply the term "Zinc" correctly to the metal that we know today in 1697 • Zinc is a brightbluishwhite metal that is brittle at room temperature

  • Ecofriendly chemicals improve metal recoveries from froth

    May 23, 2021  It has also been tested for the recovery of copper from waste streams, including mineral tailings and waste slag from metal refineries Serna and his team now plan to investigate commercialization

  • UGMat Nonferrous Slags Recycled Materials Resource Center

    Lead and zinc are often related as coproducts in both source and metallurgical treatments, and the various combinations of slags, which include lead, leadzinc, and zinc, are similarly produced Figure 1 presents a general schematic depicting the slag production process for copper, nickel, and leadzinc

  • Waelz process Wikipedia

    Waelz process The Waelz process is a method of recovering zinc and other relatively low boiling point metals from metallurgical waste (typically EAF flue dust) and other recycled materials using a rotary kiln ( waelz kiln ) The zinc enriched product is referred to as waelz oxide, and the reduced zinc by product as waelz slag

  • Hegeler Zinc PHAfinal2107release

    slag were produced and stored in waste piles on the site Subsequently, a zinc oxide plant was built to recover more of the metals from the slag In November 1947, zinc smelting ceased, but zincrolling and sulfuric acid production operations continued until at least 1954 [2] 2

  • The recovery of Zn and Pb and the manufacture of

    In the second stage of the process, called oxidation sintering procedure, a lightweight brick was produced Samples containing up to 60 wt% zinc smelting slag and 40 wt% kaolin clay were reduced at 1050°C for 6h, and then sintered at 1050°C for 4h The recoveries of Zn and Pb from the brick are 945 ± 06% and 976 ± 02%, respectively

  • Recovery of cobalt and zinc from the leaching solution of

    Feb 01, 2019  A series of characterization of zinc slag have been carried out, including XRD and XRF The results showed that the contents in slag of zinc and cobalt were 4424% and 038%, respectively And it is significant to recover the smelting slag First, zinc slag was leached with sulfuric acid to obtain the leaching solution containing multiple ions

  • Recovery of iron, carbon and zinc from steel plant waste

    Sep 01, 1996  Recovery of iron, carbon and zinc from steel plant waste oxides using the AISIDOE postcombustion smelting technology

  • Recovery of iron from leadzinc metallurgical slags by

    Abstract: The recovery of iron from iron sinking slag and lead smelter slag was investigated by desulfurizationreduction bath smelting The effects of lead smelter slag (LSS) to iron sinking slag (ISS) mass ratio and temperature were investigated in desulfurization experiments

  • Highpurity zinc and ferroalloy recovery from EAF dusts

    Dec 09, 2002  An innovative pyrohydrometallurgical treatment aimed at recovering metallic zinc from powders rich in ZnO has been realised These powders are produced from the thermal fumigation of EAF dusts (mix of dusts manufactured from carbon steel and stainless steel) in an arcplasma furnace, producing ferroalloys, totally inert slag and ZnOrich powders These powders are treated via a

  • RECYCLING OF COPPER, LEAD AND ZINC BEARING WASTES

    recovery operations Included in the Environment Committee programme, is a requirement to "Identify and assess environmentally sound and economically efficient practices for recovery operations" This Guidance Document is concerned with the principal recovery operations applicable to copper, lead and zinc

  • Hegeler Zinc PHAfinal2107release

    slag were produced and stored in waste piles on the site Subsequently, a zinc oxide plant was built to recover more of the metals from the slag In November 1947, zinc smelting ceased, but zincrolling and sulfuric acid production operations continued until at least 1954 [2] 2

  • Ecofriendly chemicals improve metal recoveries from froth

    May 23, 2021  It has also been tested for the recovery of copper from waste streams, including mineral tailings and waste slag from metal refineries Serna and his team now plan to investigate commercialization

  • COMINCO LTD TRAIL METALLURGICAL OPERATIONS

    The cakes from the other stages are reprocessed to recover unused zinc and then sent to the Lead Smelter Solution analysis before and after purification is as follows: Before 155 300 60 15 01 02 10 After 157 <03

  • Zinc production environmental impact GreenSpec

    • Zinc, (aka spelter), is an element with symbol Zn and atomic number 30 • Zinc was known from ancient times, when Brass (ie an alloy of Copper and Zinc) was used • Lohneyes was the first to apply the term "Zinc" correctly to the metal that we know today in 1697 • Zinc is a brightbluishwhite metal that is brittle at room temperature

  • [Leaching of nonferrous metals from coppersmelting slag

    Carrying out the process under these parameters resulted in the recovery of 894% of copper and 393% of zinc in the solution The possibility of the bioregeneration of trivalent iron in the solution obtained after the chemical leaching of slag by ironoxidizingacidophilic chemolithotrophic microorganisms without inhibiting their activity was

  • Study on the Process of from Hard Zinc Slag Preparation

    Thermodynamic analysis that the boiling point of Cd, Zn, Pb lower than the Indium, In the distillation process into the gas phase; Boiling point Sn, Cu, Al, Fe than Indium lower, the residual in the liquid phase Vacuum refining hard zinc preparation of indium slag, Indium recovery rate is 812%

  • Technical Resource Document: Extraction and Beneficiation

    Recovery Act (RCRA) as it applies to mining waste was amended in 1980 when Congress passed the Bevill primary lead processing and slag from primary zinc processing are subject to applicable state requirements The remaining two wastes (phosphogypsum and phosphoric acid process waste water) are currently being

  • THE RECOVERY OF GOLD FROM FLOTATION CONCENTRATES

    corrosive on graphite pots than a zincy slag The slag* after grinding and amalgamation (which Is done in the same barrel as is used for grinding s from 350s to 900s> depending Little matte Is ground with the Zinc precipitate slag assayed 2500s to Among the factors which must be considered in a problem

  • The recovery of Zn and Pb and the manufacture of

    In the second stage of the process, called oxidation sintering procedure, a lightweight brick was produced Samples containing up to 60 wt% zinc smelting slag and 40 wt% kaolin clay were reduced at 1050°C for 6h, and then sintered at 1050°C for 4h The recoveries of Zn and Pb from the brick are 945 ± 06% and 976 ± 02%, respectively

  • Recovery of cobalt and zinc from the leaching solution of

    Feb 01, 2019  A series of characterization of zinc slag have been carried out, including XRD and XRF The results showed that the contents in slag of zinc and cobalt were 4424% and 038%, respectively And it is significant to recover the smelting slag First, zinc slag was leached with sulfuric acid to obtain the leaching solution containing multiple ions

  • An alternative approach to recovering valuable metals from

    This study used a vitrification process (with good potential for commercialization) to recover valuable metals from Zn phosphating sludge The involved vitrification process achieves two major goals: it transformed hazardous Zn phosphating sludge into inert slag and it concentrated Fe (835%) and Zn (928%) into ingot and fine particulatephase material, respectively

  • Leaching and recovery of zinc and copper from brass slag

    Leaching and recovery processes for zinc and copper from brass slag by sulfuric acid were carried out and iron and aluminum were also precipitated as hydroxides in addition to silica gel The factors affecting the performance and efficiency of the leaching processsuch as agitation rate, leaching time, acid concentration and temperature were

  • Recovery of iron, carbon and zinc from steel plant waste

    Sep 01, 1996  Recovery of iron, carbon and zinc from steel plant waste oxides using the AISIDOE postcombustion smelting technology

  • Recovery of iron from leadzinc metallurgical slags by

    Abstract: The recovery of iron from iron sinking slag and lead smelter slag was investigated by desulfurizationreduction bath smelting The effects of lead smelter slag (LSS) to iron sinking slag (ISS) mass ratio and temperature were investigated in desulfurization experiments

  • Hegeler Zinc PHAfinal2107release

    slag were produced and stored in waste piles on the site Subsequently, a zinc oxide plant was built to recover more of the metals from the slag In November 1947, zinc smelting ceased, but zincrolling and sulfuric acid production operations continued until at least 1954 [2] 2

  • Study on the Process of from Hard Zinc Slag Preparation

    Thermodynamic analysis that the boiling point of Cd, Zn, Pb lower than the Indium, In the distillation process into the gas phase; Boiling point Sn, Cu, Al, Fe than Indium lower, the residual in the liquid phase Vacuum refining hard zinc preparation of indium slag, Indium recovery rate is 812%

  • Ecofriendly chemicals improve metal recoveries from froth

    May 23, 2021  It has also been tested for the recovery of copper from waste streams, including mineral tailings and waste slag from metal refineries Serna and his team now plan to investigate commercialization

  • COMINCO LTD TRAIL METALLURGICAL OPERATIONS

    The cakes from the other stages are reprocessed to recover unused zinc and then sent to the Lead Smelter Solution analysis before and after purification is as follows: Before 155 300 60 15 01 02 10 After 157 <03

  • Technical Resource Document: Extraction and Beneficiation

    Recovery Act (RCRA) as it applies to mining waste was amended in 1980 when Congress passed the Bevill primary lead processing and slag from primary zinc processing are subject to applicable state requirements The remaining two wastes (phosphogypsum and phosphoric acid process waste water) are currently being

  • THE RECOVERY OF GOLD FROM FLOTATION CONCENTRATES

    corrosive on graphite pots than a zincy slag The slag* after grinding and amalgamation (which Is done in the same barrel as is used for grinding s from 350s to 900s> depending Little matte Is ground with the Zinc precipitate slag assayed 2500s to Among the factors which must be considered in a problem

  • New insight into atmospheric mercury emissions from zinc

    Cu slag 2 5 3 Co slag 60 30 42 Cd slag 6 3 4 Pb slag 38 10 4 In slag 3 1 2 Leaching slag 198 132 209 Ag slag 1 1 1 Waste liquid 33 99 34 ZnO recovery process Coke powder 99 66 102 FGD gypsum 5 ZnO 42 33 52 Wastewater station Water station slag 4 Drainage 330

  • F23J 1 Removing ash, clinker, or slag from combustion

    CNA Composite slag feeding device for slag cooler : 09/05/2012: CNB Horizontal type waste heat boiler of zinccontaining dust recovery system of rotary hearth furnace : 08/2012