Cement concrete is the most used and widely used material in civil engineering [27].Nickel-iron slag in silicate cement concrete can be used as concrete aggregate [28], admixture [29], [30] and mixing material [31].The blast furnace ferronickel slag contains glass phase and silicate phase, which can prepare geological compounds [32], [33].At present, the …
Download scientific diagram | XRD pattern of steel slag from publication: Preparation and Characteristics of Steel Slag Ceramics from Converter Slag | Steel slag is an inevitable by-product from a ...
Fig. 1 shows the phase diagram of the CaO–MgO–Al 2 O 3 –SiO 2 system, ... Lastly, special attention was devoted to the challenges in the preparation of slag-derived …
At present, lithium slag is mostly used as a raw material for cement admixture or accelerant in China [12, 13]. However, the research on the preparation of lithium slag instead of clay for ed ceramics is still insufficient. ed ceramic is a highly closed-hole ceramic material formed by high-temperature calcination and molten ing [14 ...
Fig. 1 shows the phase diagram of the CaO–MgO–Al 2 O 3 –SiO 2 system, ... Lastly, special attention was devoted to the challenges in the preparation of slag-derived glass-ceramics from the perspectives of cost, safety and diversification. It was found that for reducing production cost, it is helpful to use molten slag directly and to ...
Download scientific diagram | SEM images of steel slag powder from publication: Preparation and Characteristics of Steel Slag Ceramics from Converter Slag | Steel slag is an inevitable by-product ...
Steel slag is the main solid waste generated in the steel-making process, accounting for 15 to 20% of crude steel output [1].China's crude steel output in 2021 was 1.035 billion tons [2], more than half of the global crude steel output (1.9505 billion tons) [3], and the steel slag output exceeded 120 million tons.In contrast, the comprehensive …
High-performance slag glass–ceramics were prepared by melting method using rare earth-containing blast furnace slag as the main raw material and Fe2O3 and …
Two types of porcelain tiles with steel slag as the main raw material (steel slag ceramics) were synthesized based on the CaO-Al2O3-SiO2 and CaO-MgO-SiO2 systems, and their bending strengths up to ...
Download scientific diagram | Chemical composition analysis of steel slag. from publication: Preparation and Performance Testing of Steel Slag Concrete from Steel Solid Waste | In this paper ...
Download scientific diagram | Formulated cement of slag-CSA and preparation of mortar sample according to TCVN 2682-2009 (left) and result of strength development (right). from publication ...
The detailed process of selective preparation of Li 2 CO 3 from overhaul slag is shown in Fig. S1. The roasting experiments are carried out in a tubular furnace (KJ, GSL-1700X–III). In each test, 30.0 g of the prepared overhaul slag is thoroughly mixed with H 2 SO 4 in accordance with the specified quality. The mixed sample is loaded into the ...
The effect of mBF/m ratio, slag temperature for injection and air pressure on the preparation of slag wool was systematically investigated. The mechanical and thermal properties were also studied to confirm the long-term working conditions of the slag wool. ... Figure 11 shows a process flow diagram for preparing slag wool using these raw ...
A Ti-bearing blast furnace slag obtained from a steel plant was used as part of the raw material, and the composition of the slag is shown in Table 1.The main components of the slag are SiO 2, CaO, Al 2 O 3, MgO, and TiO 2.The content of TiO 2 in the blast furnace slag is 10.8%; therefore, it is a low and medium Ti-bearing blast …
Download scientific diagram | Specific simulation preparation steps of reconstructed slag from publication: Analysis of melting reconstruction treatment and cement solidification on ultra-risk ...
Fig. 2 schematically illustrates the preparation process for steel slag-based C-PCMs. PEG, NaNO 3, and Na 2 SO 4 typical low, medium, and high-temperature PCMs …
Carbide slag (CS) is a representative solid waste generated by the ethylene and chlor-alkali industries. Annually, China produces about 40 million tons of CS, ... Flow diagram for the preparation of sorbent pellets. 2.3. CO 2 capture performance tests of sorbent pellets.
Phase diagrams of slag systems have played an important role in the history of iron and steel making. The art of phase diagram measurements for slag systems is gradually disappearing from common practice. ... The 1:1 preparation, Al 2 O 3.SiO 2, consisted of the 3:2 compound with cristobalite below the eutectic, 1545°C, and the 3:2 …
Fly ash is a major supplier for Al 2 O 3 and SiO 2, and microsilica and quartz for SiO 2 to the composite ceramics . Meanwhile fly ash and microsilica also play a role …
Download scientific diagram | Preparation of two categories of steel slag aggregate: coarse slag 20-40 mm and fine slag 2.5-5 mm. from publication: CHARACTERIZATION OF CARBONATED STEELMAKING …
Raw material preparation: The converter slag and blast furnace slag were crushed using a crusher and screened with a mesh sieve (<0.074 mm). ... The diagram shows that the surface layer of the pulverization product is uneven and mostly stacked, with fine grains closely combined with the bottom strip. Surface scanning results illustrate …
Afterwards, the preparation of slag glass-ceramics arouses the extensive interests worldwide, and many researches and industrial practices have been carried out, achieving the significant progress. ... (CCT) diagram when molten slag is cooled with the different rates [95, 96]. Fig. 11 shows the typical diagrams of TTT and CCT curves for ...
Download scientific diagram | The composition of slag used for dephosphorization. from publication: The Preparation of High-Purity Iron (99.987%) Employing a Process of Direct Reduction–Melting ...
Schematic diagram of CCS production process. ... (CaC 2) wrapped in raw slag. During the preparation of acetylene from calcium carbide, a carbon-silicon mineral phase is also formed (Fig. 6 a), and after atomic scale analysis (Table 1 a) and soft X-ray analysis (Fig. 6 a), this mineral phase is found to be silicon carbide (SiC).
The preparation and formation mechanism of ferrochrome slag-based high-strength ceramic aggregate and its impact on the performance of concrete. Author links open ... finally forsterite and spinel were selected as the main mineral phases for the preparation of FCS-HSCA. The phase diagram was utilized to determine six points …
Download scientific diagram | Chemical composition of cement, steel slag, phosphorus slag and limestone powder from publication: Preparation of High Activity Admixture from Steel Slag, Phosphate ...
To utilize blast furnace slag in an environment friendly, economically efficient and high value-added manner, this study successfully prepared glass–ceramics by …
Download scientific diagram | Preparation of alkali-activated slag concrete hollow block (AASCHB) specimens: (a) homemade plexiglass mold; (b) fresh concrete; (c) molding; (d) mechanical shaking ...
Download scientific diagram | X-ray diffraction analysis of steel slag. from publication: Preparation and Performance Testing of Steel Slag Concrete from Steel Solid Waste | In this paper, steel ...
In this process, the titanium is recovered as the form of liquid titanium alloys from the Ti-BF slag and the residue is used for cement preparation. Fig. 2 shows the relationship diagram of Gibbs free energy of oxidation reactions of the elements in the Ti-BF slag with temperature. It illustrates that the silicon dioxide and titanium dioxide ...
Download scientific diagram | Mineralogical phases of cement paste with SSUP and SSP. from publication: Laboratory Preparation and Performance Characterization of Steel Slag Ultrafine Powder Used ...
Apart from metallurgical slag and CFA, other solid wastes (e.g. red mud [26], carbide slag [27], semicoke ash [28], sludge-incinerated ash [29]) were also demonstrated to be a potential skeleton material to shape-stabilize NaNO 3 salt for medium- and low- temperature (<500 °C) thermal energy storage. For high-temperature (>500 °C) …
Download scientific diagram | Water of consistency and setting time of slag cement pastes from publication: Utilization of an Industrial Waste Product in the Preparation of Low Cost Cement | Blast ...
Download scientific diagram | The synthetic process of calcium carbonate from carbide slag from publication: A mild route for the preparation of calcium carbonate rod bundles in large scale from ...
To utilize blast furnace slag in an environment friendly, economically efficient and high value-added manner, this study successfully prepared glass–ceramics by directly using high-basicity blast furnace slag (R = 1.26) as raw material through low-pressure sintering method (80 kPa). This study examined the influences of particle size, heat …
Download scientific diagram | Chemical compositions of LFS(wt%). from publication: Study on preparation and CO2 sequestration mechanism of high-strength carbonated Ladle refining slag binder ...
This study mainly focused on the preparation of magnesium carbonate slag unburned aggregate for concrete by employing accelerated carbonation and cold granulation method, as well as the existence of ASR risk in carbonated aggregate. ... Fig. 15 is a schematic diagram of the mechanism proposed in this study, which is used to …
Solvent extraction is extensively used in the separation and extraction of metal ions and has been employed in the preparation of high-purity vanadyl sulfate (Li et al., 2009).Li et al. (2017) prepared high-purity vanadyl sulfate from sulfate solutions containing iron and aluminum impurities. Zhang et al. (2019) used a direct acid leaching …
In addition, the preparation of road base materials with steel slag, fly ash and phosphogypsum as the main raw materials has also been studied. ... Phase diagrams …