Effects of main stimulators(i.e.,flue gas desulfurization gypsum and carbide slag) and auxiliary stimulators(i.e.,Na2SO4 and cement clinker) on the hydration process and microstructure of water-granulated secondary nickel slag were investigated via the measurement of filling material strength,infrared spectroscopic analysis and thermal …
The cleaned slag from the electric furnace is water granulated. Slag production is about 200 000 tons per year and the slag is classified as normal waste according to Finnish and European standards. Part of the slag is utilized for sandblasting abrasive and in building material industry but the major share of the slag is landfilled to the
To address this challenge, this study proposes the use of high magnesium nickel slag (HMNS) as an alternative to river sand in alkali-activated ground granulated blast furnace slag (AAS) mortars. The length changes of mortar bars were measured, and a series of characterizations were conducted to assess phase assemblage and …
This study investigated the alkali-silica reaction (ASR) of air-cooled and water-quenched high-magnesium nickel slag (HMNS) fine aggregates in alkali …
The experimental results revealed that the maximum flexural and compressive strength of nickel slag sand using a full-size substitution group corresponded to an optimal dosage of 30%, while the ...
ABSTRACT A hydrometallurgical method is discussed to selectively extract base metals such as copper, cobalt, nickel and iron from the copper granulated slag (0.53% Cu) at atmospheric pressure.
Granulated copper-nickel matte (Feinstein) which has its specific features was studied in ... Method of Continuous Converting of Nickel-Containing Copper Sulfide Materials to Blister Copper, Dump Slag, and Copper–Nickel Alloy [in Russian], Patent 2625621 RF, IPC S22V15/00, No. 2015146716; appl. Apr. 1, 2016; publ. Jul. 17, 2017, …
Ground granulated blast furnace slag (GGBS) is a by-product from the blast-furnaces used to make iron. Blast-furnaces are fed with controlled mixture of iron-ore, coke and limestone, and operated at a temperature of …
ABSTRACT A hydrometallurgical method is discussed to selectively extract base metals such as copper, cobalt, nickel and iron from the copper granulated slag (0.53% Cu) at atmospheric pressure. It involves first-stage leaching of slag with organic (citric acid) to selectively recover cobalt, nickel and iron. The residue containing high …
The results indicate that water-granulated secondary nickel slag, stimulated by several stimulators, is consisted of glass phases and crystals that hydrate into …
GRANULATED NICKEL MATTE (LESS THAN 2% MOISTURE CONTENT) ... IRON AND STEEL SLAG AND ITS MIXTURE Description n the second paragraph, I replace "if necessary the cargo is transported" with "if necessary. The cargo is transported". IMSBC CODE 2018 EDITION – Errata and Corrigenda – November 2018 7 IRON OXIDE …
This article suggests that the slag for nickel smelting is adjusted by increasing the amount of lime, partly instead of quartz, to ... Then, the phase analysis of the water-granulated slag was made. XRD patterns were recorded with an X-ray diffractometer (Rigaku D/max2400, Japan) using Cu Ka radiation (k = 1.5444 A) operating at 42 kV and
Influence of granulated gradation nickel slag aggregate on compressive strength of concrete has been investigated. In this study, the influence of granulated gradation nickel slag aggregate with aggregate size LS 9.50 mm, LS 5.60 mm, LS 2.36 mm, LS 2.00 mm and the combination of those fourth aggregate size on compressive …
Ferro Nickel Slag Granulated Description. A by-product from smelting and refining of iron ore and nickel ore in electric furnace. Granulated by air or water cooling. Cargo comprises mainly of magnesium silicate. Similar composition to natural sand, with colour ranging from pale greenish, grey to brownish.
Granulated nickel slag is essentially an angular, black, glassy slag "sand" with most particles in the size range of − 2 mm (No. 10 sieve) to + 0.150 mm (No. 100 sieve). It is …
This research investigates the use of nickel slag as the replacement of sand in concrete. Various concrete samples were produced with the increasing nickel slag content from 0% to 50% every 10%. A water-cement-ratio of 0.35 was chosen in this study. Concrete mixes were assessed for their compressive strength and workability.
In this study, the influence of granulated gradation nickel slag aggregate with aggregate size LS 9.50 mm, LS 5.60 mm, LS 2.36 mm, LS 2.00 mm and the combination of those fourth aggregate size on compressive strength and microstructure of concrete has reported. The concrete was prepared according to SNI 03-1972-1990.
Alkali activation of ground granulated blast furnace and other metallurgical slags (e.g., copper slag, nickel slag, steel slag) produces binders with comparable mechanical properties as ordinary Portland cement (OPC), but with relatively low greenhouse gas emission and embodied energy consumption [1,2,3].
DOI: 10.1016/j.cscm.2023.e02224 Corpus ID: 261633870; Effects of silicate modulus and alkali dosage on the performance of one-part electric furnace nickel slag-based geopolymer repair materials
Nickel slag is a granulated slag formed by natural cooling or water quenching of a melt formed during the smelting process of nickel metal, which contains FeO, SiO 2, Al 2 O 3 and MgO as the main components [1]. For every ton of nickel produced, about 6–16 tons of nickel slag are generated and discharged in China [2]. In …
In order to improve the pozzolanic activity of high-magnesium nickel slag, this study produced a phase separation structure of high-magnesium nickel slag by activation treatment, and studied the ...
In this study, the influence of granulated gradation nickel slag aggregate with aggregate size LS 9.50 mm, LS 5.60 mm, LS 2.36 mm, LS 2.00 mm and the
This research aims to use high-magnesium nickel slag crushed into a powder as a replacement for cement and to study their properties and microstructure in …
This research aims to investigate the influence of nickel slag concentration to compressive strength, flexural strength, and microstructure of geopolymer composite.
Conventionally, little chemical adjustments are made to the slag prior to its processing for subsequent use or disposal. However, recent attempts have looked into modifying the chemical composition of slag while hot, to render its chemistry and properties suitable for high-value products or recovery of minerals/metals from slag [11, …
In this study, the influence of granulated gradation nickel slag aggregate with aggregate size LS 9.50 mm, LS 5.60 mm, LS 2.36 mm, LS 2.00 mm and the …
Using secondary smelting water-granulated nickel slag (SWNS) after iron extraction as the main raw material, made composite activator (flue gas desulphurization gypsum (FGDG) and carbide slag (CS) are the main activators, Na 2 SO 4 and cement clinker (CC) are the auxiliary activators) with cementing agents (CA), and then made into mine …
Effects of main stimulators (i.e., flue gas desulfurization gypsum and carbide slag) and auxiliary stimulators (i.e., Na 2 SO 4 and cement clinker) on the hydration process and microstructure of water-granulated secondary nickel slag were investigated via the measurement of filling material strength, infrared spectroscopic analysis and thermal …
DOI: 10.1016/j.conbuildmat.2023.133374 Corpus ID: 262097785; Alkali-silica reaction of high-magnesium nickel slag fine aggregate in alkali-activated ground granulated blast-furnace slag mortar
The resulting furnace slag is granulated and later milled and floated to recover matte. A project was initiated to investigate the distribution of nickel in the slag …
Granulated nickel slag is essentially an angular, black, glassy slag "sand" with most particles in the size range of minus 2 mm (No. 10 sieve) to plus 0.150 mm (No. 100 sieve). (15) It is more porous, with lower specific …
Section snippets Materials. The maximum particle size of the granulated slag was about 5 mm.It was ground using a laboratory ball mill to a fineness of 500 m 2 /kg. The specific surface area of the ground slag was determined using the Blaine's air permeability method according to the ASTM C204-11 Standard [24].The photographs of the raw slag …
Alkali-activated copper and nickel slag cementitious materials (ACNCMs) are composite cementitious materials with CNS (copper and nickel slag) as the main materials and GGBFS (ground-granulated blast-furnace slag) as a mineral admixture. In this paper, the activity indexes of CNS with different grinding times were studied using CNS to …
This article reports an experimental study on the dynamic mechanical behaviors of fly ash–ground-granulated blast-furnace slag–high-magnesium nickel slag (FA–GGBS–HMNS)-based geopolymers when subjected to impact loading. The impact tests are performed using a split-Hopkinson pressure bar device. The test results show …
A heavy amount of slag (2.2 tons per ton of copper) is generated during the pyro or hydrometallurgical copper production which generally contains significant amounts of some valuable metals such as copper, nickel, cobalt, and iron [1,2].In the last few decades, there has been growing interest in hydrometallurgical processes to recover …
Nickel slag is a granulated slag formed by natural cooling or water quenching of a melt formed during the smelting process of nickel metal, which contains …
1.1.1 History of Blast-Furnace Slag. The latent hydraulic reactivity of granulated blast-furnace slag (gbfs) was discovered in 1862 by Emil Langen in Germany (Lea 1971; Smolczyk 1978).The first use of slags in cements dates back to 1865, when in Germany a slag-lime cement was commercially produced.
The results indicate that water-granulated secondary nickel slag, stimulated by several stimulators, is consisted of glass phases and crystals that hydrate into ettringite and alluminosilicate gel ...