dry granulation copper slag

Blast furnace slag obtained from dry granulation method …

Blast furnace slag obtained from water quenching is generally used for cement production. However, harmful waste, such as SO 2, H 2 S and heavy metals, is discharged into the surrounding environment after water quenching. Dry granulation is an environmentally-friendly treatment, and the performance of dry granulation slag cement is investigated in the …

UG-Mat Nonferrous Slags | Recycled Materials Resource Center

Granulated copper slag is more porous and therefore has lower specific gravity and higher absorption than air-cooled copper slag. The granulated copper slag is made up of regularly shaped, angular particles, mostly between 4.75 mm (3/4 in) and 0.075 mm (No. 200 sieve) in size.

Granulation | TENOVA

Tenova Pyromet has vast experience in the design and construction of wet granulation plants. The wet slag granulation process involves pumping water into the slag cold runner via a blower box to quench the molten slag. The in-house designs have been proven in numerous applications and have shown to be both robust and reliable.

Thermodynamic analysis on molten slag waste heat cascade ...

By WQ method, energy quality of molten copper slag is discounted. Copper slag particles should be fast cooled during granulation process. Thus, lots of air is blown in to make enough heat transfer with copper slag particles, which generate some exergy loss. And exergy efficiency of GWHR method is 76.9%.

Dry Slag Granulation: A Path to Improving the Safety and ...

The energy in slag is lost through dumping and water granulation processes, and where slag is sold as a by-product, it is for its chemical content only. Here, dry granulation processes also offer advantages including the production of by-products which hold value in both their chemical content and physical properties and heat recovery. Dry granulation, therefore, …

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Dry granulation and heat recovery from metallurgical slags: ... A study on the leachability of metals from modified copper slag for added value applications: paper: presentation: Session 5: Metal recovery ... Irene Ruiz-Oria – Atlantic Copper S.L.U. Dry copper slag atomisation: on site laboratory-pilot scale trials at copper smelter facility ...

The effect of size distribution of slag particles obtained ...

With a decrease in cement/slag ratio, the compressive strength for dry granulation slag cement mortar decreased, and then increased, reaching 96.4% …

Recycling of the waste copper slag as a fin aggregate for ...

The copper slag, abtained from the refining process of copper ore(CaF{sub 2}S{sub 2}), is wasted, after used as a sand blasting material for removing and/or cleaning rust and contaminants from the surface of ships. This study covers a possible recycling of the waste copper slag(WCS) as a fine aggregate for cement mortar.

PROCESS AND APPARATUS FOR DRY GRANULATION OF SLAG …

The PROCESS AND APPARATUS FOR DRY GRANULATION OF SLAG WITH REDUCED FORMATION OF SLAG WOOL patent was assigned a Application Number # 14915451 – by the United States Patent and Trademark Office (USPTO). Patent Application Number is a unique ID to identify the PROCESS AND APPARATUS FOR DRY GRANULATION OF SLAG WITH …

Hatch Ironmaking Technologies | Dry Slag Granulation ...

Dry Slag Granulation Water granulation is the most commonly used method to handle blast furnace slag and requires a granulation and a dewatering step to process the slag. In water granulation, the energy in the slag is lost from water evaporation and cooling and is difficult or impossible to recover.

DRY SLAG GRANULATION WITH HEAT RECOVERY*

Dry Granulation Concept. Dry slag granulation is based on molten slag atomisation using a variable speed rotating cup or dish (see Figure 1). The slag is delivered on to the centre of the cup from a slag runner via a vertical refractory lined pipe. The rotation of the cup forces the slag outwards to the cup lip where it is atomised (see Figure 2).

PROPERTIES OF CONCRETE CONTAINING WASTE COPPER …

Copper slag is a voluminous waste material obtained during the manufacturing of copper (matte ... description it is an inert synthetic mineral manufactured by granulation in water of the slag arising from unique fumed copper smelting processes. It is an iron silicate with trace metals ... The dry materials comprising cement, sand (or copper ...

Economic and environmental evaluation of slag dry …

Dry slag granulation (DSG) has the potential to make a fundamental change in slag treatment and deliver a more sustainable alternative compared with the …

Properties and Uses of Steelmaking Slag - IspatGuru

Steelmaking slag can be used as a low-cost adsorbent for arsenic in aqueous system, showing around 95 % to 100 % removal efficiency near initial pH value of 2. The removal mechanism includes the co-precipitation and adsorption of CaCO3. In case of the removal of copper using steelmaking slag, the major mechanisms are adsorption and precipitation.

Review of 6th Global Slag Conference 2010

In a typical year, 17.6Mt of granulated BF slag is produced, 4.1Mt of air-cooled BF slag, 9.8Mt of BOF steelmaking slag, 2.4Mt of EAF slag and 5.5Mt of non-ferrous slag (including copper slag and ferro-nickel slag etc). One long-term trend has been the increase in granulation compared to air-cooling, so that around 80% of slag is now granulated.

Dry Granulation of Blast Furnace Slag - Steel360

Dry slag granulation process is essentially to atomize the liquid slag and then to cool the particles rapidly so as to produce a glassy slag. Heat is recovered from the slag in the following ways. As the spray of slag particles moves outwards from the atomizer, heat is lost by radiation to the vessel and by convection to the air moving through the vessel.

Sustainable solutions for the non ferrous metals industry

GreenSlag for dry granulation of slags PowerSlag includes an energy recovery system For wide range of various types of slag in the non ferrous and ferroalloy industry containing large amount of heat Successfully tested for copper slag, other slags under investigation New type of dry granulation system allowing the recovery of heat from the slag ...

Mechanical activation of granulated blast furnace slag and ...

Reactivity and performance of dry granulation blast furnace slag cement. Junxiang Liu, Qingbo Yu, Zongliang Zuo, F. Yang, Zhicheng Han, Q. Qin; Materials Science, Engineering. Cement and Concrete Composites. 2019; 30. Save. Alert. Mechanical Activation of Granulated Copper Slag and Its Influence on Hydration Heat and Compressive Strength of ...

DESIGN OF A MODERN LARGE CAPACITY FeNi SMELTING …

– the slag and metal tapping facilities, – the off gas system, – the refining plant and – the metal granulation plant. The capacity of each facility is calculated according to the mass and energy balance for the annual amount of dry ore or, respectively, calcined ore to be processed.

4th International Slag Valorisation Symposium - Zero Waste

"Dry slag granulation of modified BOF slag" China Steel Corporation (Taiwan) Paper Shuigen HUANG 1, Muxing GUO 1, Yiannis PONTIKES 1, Joris VAN DYCK 1, Chintinne MATHIAS 2, Peter Tom JONES 1, Bart BLANPAIN 1 "In-situ observation of ZnO containing Cu slag solidification by confocal laser scanning microscope"

Kinetic study on recovery heat of granulated blast-furnace ...

Qin Y, Lv X, Bai C, Chen P, Qiu G. Dry granulation of molten slag using a rotating multi-nozzle cup atomizer and characterization of slag particles. Steel Res Int. 2013;84(9):852–62. CAS Article Google Scholar Liu J, Yu Q, Duan W, Qin Q. Experimental investigation on ligament formation for molten slag granulation.

Experimental investigation on molten slag granulation for ...

Dry granulation technology can be applied to granulate molten metallurgical slags with different viscosity and surface tension. Ligament formation for blast furnace slag, ferroalloy slag and copper slag granulation can obtain comparatively uniform solid slag particles, which is beneficial to heat transfer or chemical reaction.

Some Fundamental Aspects of Dry Slag Granulation Process

Abstract: There is a growing interest in development of a dry slag granulation (DSG) process so as to recover the sensible and latent heats from molten slags and convert iron blast furnace slags into a glassy phase that is a suitable replacement for Portland cement. The combination of waste heat recovery and conversion of slag into a saleable

Study on Preparation of Oxygen Carrier Using Copper Slag ...

In order to eliminate the complicated pretreatment process, this paper put forward to using granulated copper slags as precursor, which fully utilizes the waste heat of the high-temperature slag and provides a new idea to recover thermal energy from copper slag. In previous work, the dry granulation method has been proved to be a feasible way ...

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Dry granulation and heat recovery from metallurgical slags. 09.10 Plenary Lecture. ... 10.40 Irene Ruiz-Oria – Atlantic Copper S.L.U. Dry copper slag atomisation: on site laboratory-pilot scale trials at copper smelter facility. 11.00 Jan Peter Schupsky – Forschungszentrum Jülich .

(PDF) The effect of smelting and granulation on some ...

Conservation and Recycling 39 (2003) The obtained value for slag sample is 299 – 313, Elsevier; 9.713 kWh/t and for granulated slag sample [2] Nikolić K. et al., Project Study on is 9.984 kWh/t, which is very similar to the Reserves of Technogenic Copper granulated slag sample, although the calcu- Deposit Depo of Slag 1 - Bor, the lated ...

US3868440A - Recovery of metal values from copper slag ...

A hydrometallurgical process for treating slag material, especially copper smelter slag material, comprises vigorously mixing the slag material with about one part by weight of sulfuric acid and about one part by weight of water for each part by weight of the slag material, and allowing the resulting mixture to react to produce a dry, solid material, containing the metal values of the …

Design and Operation of Dry Slag Granulation Pilot Plant ...

10%The hot air can be recovered and used in other process operations. Compared with water granulation, dry granulation enables production of slag granules without water and significant waste heat recovery. Dry granulation of slags was first proposed more than 30 years ago and has been the subject of numerous studies [3,4,5,6,7]. …

Assessment of the Harmfulness of the Slags from Copper ...

192 ARCHIVES of FOUNDRY ENGINEERING Volume 17, Issue 3/2017, 191 -195 slag mass, and the alloy composed of 85 % Fe3C, 4 % P, • Slag originated from the primary copper production process remainder Fe, refined to the granulation 20 -100 mm in a total in the flash furnace of the Outtokumpuja Company in HM amount of 1 % versus the copper mass ...

Outotec Flash Smelting Technology

Granulation Slag Storage Area Slag Flotation Hot Gas Cleaning Hot Gas Cleaning Flash Smelting and Flash Converting process. With flexibility, low energy consumption, high sulfur capture, and excellent economy of scale, Outotec Flash Smelting technology is the world's leading method for copper and nickel smelting. More than half of the