granulated zinc smelter slag

Zinc recovery from metallurgical slag and dust by ...


Jul 11, 2018· Lead and zinc smelting slag contains several poisonous elements such as arsenic (As), cadmium (Cd) and chromium (Cr), which makes it hazardous and unacceptable for stockpiling or landfilling [6–8]. The zinc extracted from MSD has potential economic benefits in recycling, reuse, exploitation and application of solid waste pollutants [ 9 – 12 ].

Zinc Slag, औद्योगिक खनिज in Muthammal Colony, …


Zinc slag, a ferro-silicate slag, also referred to as ISF (Imperial Smelting Furnace) slag, is a by-product generated during the primary smelting of zinc ore in a form of blast furnace. It is a granulated, glassy material and has the appearance of dark coloured sand.

Cotreatment of MSWI Fly Ash and Granulated Lead Smelting ...


Jan 08, 2019· To our knowledge, granulated lead smelting slag (GLSS) contains plenty of SiO 2 and Al 2 O 3, and the molar ratio of SiO 2 and Al 2 O 3 is high, which can be considered as an aluminosilicate source for geopolymer production.

The effect of granulated lead–zinc slag on aesthetic and ...


The aim of this study is to produce some pigments from granulated waste slags obtained from lead–zinc smelting furnace for industrial ceramic glaze application. The chemical and phase analysis of slag is characterised by X-ray fluorescence (XRF) and X-ray diffraction (XRD), respectively.

The Smelting Process - Sudbury INO


Kristiansand, Norway. Slag from the converter aisle is trans-ported by the Slag Hauler to disposal pits on site. The Acid Plant was commissioned in 1978 as part of the Smelter Environmental Improvement project. The Acid Plant treats the roaster off-gas, capturing the sulphur dioxide (SO 2) and producing a 93% sulphuric acid (H 2 SO 4), which is ...

Clean strengthening reduction of lead and zinc from ...


Hu and Deng et al. extracted 94 wt % of zinc and 97 wt % of lead from zinc smelting slag by reacting it with carbon at 1050 °C for 6 h (Hu et al., 2014). Miette and Mevisse et al. investigated the intensified reduction of zinc from electric arc furnace dust via reduction with pig iron by using carbon and silicon to inhibit reoxidation of zinc ...

Home | Slag Valorisation Symposium


Apr 01, 2019· Valorisation of EAF slag through a defined reduction method. 15.20 Visa Saari – Boliden Harjavalta. Boliden Harjavalta copper and nickel smelter – Review of smelter operations, slags and slag valorisation studies. 15.40 Moritz to Baben – GTT Technologies. Thermochemistry of vanadium containing slags. 16.00 Hugo Lucas – IME-RWTH Aachen ...

NEW BUSINESS TO REUSE ANACONDA'S SLAG


Granulated Slag Pile, an area of approximately 130 acres located east of Anaconda along Montana Highway 1. This pile consists of an estimated 26.5 million tons of slag, roughly half of the total produced. Over 40 million tons of slag were produced during the 100 years of copper smelting …

Lead and Zinc Smelting - IFC


carded slag from the smelter. Discard slag may contain 0.5–0.7% lead/zinc and is frequently used as fill or for sandblasting. Slags with higher lead/ zinc) content—say, 15% zinc—can be sent for metals recovery. Leaching processes produce resi-dues, while effluent treatment results in sludges that require appropriate disposal. The smelting

Chapter Four - Nonferrous Slag Byproducts | Recycled ...


Roasting, which is heating below the melting point; 2. Smelting, which melts the roasted material; and 3. Converting, where the metal is separated from purities. Phosphorous, copper, nickel, and zinc slags can be air- cooled or granulated (RMRC 2008a; TFHRC 2009). Often, molten slag …

The Solidification of Lead-Zinc Smelting Slag through ...


Lead-Zinc Smelting Slag (LZSS) is an industrial waste produced during the smelting of lead (Pb) and zinc (Zn) from their ores. It is considered hazardous waste as to it contains a number of heavy metals including Pb, Zn, Cu, Mn, Cr, Cd and Ni etc.

Some smelter slags represent a significant environmental ...


Some smelter slags represent a significant environmental hazard. Since the beginning of the industrial age, slag, the glassy material left over when metals are refined from ore, has been ...

Effect of granulated lead smelter slag on strength of fly ...


Granulated lead smelter slag is an effective supplementary cementitious material. • Particle size has significate influence on compressive strength. • Mechanical properties of concrete with slag are similar to those with fly ash. • The addition of lead smelter slag results in a decrease of the drying shrinkage.

(PDF) Application of granulated lead-zinc slag in concrete ...


Studies by Alwaeli, (2017Alwaeli, (, 2016 Alwaeli, ( and 2013 and Alwaeli and Nadziakiewicz, (2012) also demonstrates that granulated lead-zinc slag, scale and steel chip waste can be used as ...

How to Deal with Zinc Alloy Slags in the Die Casting ...


A. Strictly control the smelting temperature, the higher the temperature is, the more the zinc alloy slag becomes. B. Try not to stir the alloy liquid in the zinc container as much as possible, because any kind of stir will cause alloy liquids to be in more contact with oxygen atoms in the air, forming more zinc slags.

FUNDAMENTALS OF ZINC RECOVERY FROM METALLURGICAL …


granulated slag (stockpiled in dumps) can be directly charged into the fuming furnace. ... agents can be delivered to the smelting furnace, also. Zinc and lead oxides contained in the molten bath are reduced to their metals at temperatures of 1400OC to 1500OC, and thus report to the gas phase. The residual, or ...

Visualisation and quantification of heavy metal ...


The Imperial Smelting Furnace (ISF) for producing lead and zinc simultaneously has operated on four continents and in eleven countries from the 1950's. One of the process changes that the ISF introduced was the production of a finely granulated slag waste.

(PDF) Reuse of Slags Containing Lead and Zinc as Aggregate ...


Technical studies have shown that ferro-silicate slag from the Imperial Smelting Furnace (ISF slag) production of zinc can be used as a replacement for sand in cementitious mixes.

Slag - Wikipedia


Slag is the glass-like by-product left over after a desired metal has been separated (i.e., smelted) from its raw ore.Slag is usually a mixture of metal oxides and silicon dioxide.However, slags can contain metal sulfides and elemental metals. While slags are generally used to remove waste in metal smelting, they can also serve other purposes, such as assisting in the temperature control of ...

COMPARATIVE RESULTS OF COPPER FLOTATION FROM …


GRANULATED SMELTER SLAG**** Abstract Smelter slag is obtained in the process of metallurgical converting of copper concentrate in the Smel-ter Plant in Bor, Serbia. Today, the reserves of this material are evaluated at about more of a year, with the average copper content of 0.6-0.9%. Production of copper concentrate by flotation of smelter slag

Utilization of granulated lead slag as a structural ...


Aug 24, 2014· Pyrometallurgical processing of lead ores generates large amounts of slag which is stockpiled as chunk or granules. Romanian dump heaps of such slag produced in the period 1972–1998, occupy an area of 4522 m2 and a volume of 6616 m3. To assess the possibility of using this material in road construction, a complex characterisation of this waste has been carried out.

Fineness Effect on Pozzolanic Activity of Cu-Ni Slag in ...


This paper presents the experimental results of the fineness effect on the pozzolanic activity of Cu-Ni slag in cemented tailing backfill. Cement paste and cemented tailing backfill samples that without or contain Cu-Ni slag with various grinding times were made and cured at 20°C for 7, 28, and 150 days. Mechanical test and microstructural analyses are performed.

RECOVERY OF PIG IRON FROM COPPER SMELTING SLAG BY ...


Copper smelting slag typically contains about 1 wt.% copper and 40 wt.% iron depending upon the initial ore quality and the furnace type. Main components of copper slag are iron oxide and silica. T hese exist in copper slag mainly in the form of fayalite (2FeO·SiO 2). This study was intended to recover pig iron from the copper smelting slag by ...

Ferrosilicate slag from zinc production as aggregates ...


The zinc production process at BZL, Avonmouth, however, also produced 80,000 tonnes per year of ferro-silicate slag (Imperial Smelting Furnace slag, ISF slag) as a by-product. Ferro-silicate slag was produced and landfilled until March 2003 (when BZL ceased zinc production) and, at the time of writing, there are still significant quantities of this

Ferrosilicate slag from zinc production as aggregates ...


ISF slag is a by-product, generated during the primary smelting of zinc ore in a form of blast furnace. It is a granulated, glassy material and has the appearance of dark coloured sand. It typically has a particle size distribution between coarse and fine sand, and a higher specific gravity than sand due to its metal content (Figure 2).

granulated slag pictures


slag, dross, scalings and other waste from the manufacture of iron or steel (excl. granulated slag, waste suitable for the recovery of iron or manganese) 26201100: hard zinc spelter: 26201900: slag, ash and residues containing mainly zinc (excl. hard zinc spelter) 26202100

UG-Mat Nonferrous Slags | Recycled Materials Resource Center


Zinc Slag Although studies performed in Oklahoma for four types of zinc smelter wastes (fine slags) indicate that they are suitable for use as fine aggregate in hot mix asphalt concrete, (8) no North American documentation was identified regarding the use of zinc or lead slags in asphalt paving. A road trial completed in the United Kingdom ...

Types of iron and steel slag : NIPPON SLAG ASSOCIATION


The molten slag flows into a cooling yard, where it is cooled slowly by natural cooling and by spraying with water. This results in a crystalline, rock-like air-cooled slag. Granulated slag The molten slag is cooled rapidly by jets of pressurized water, resulting in a vitreous, granulated slag.