Primary Slag From Ghana

： In view of the fact that Ti–bearing blast furnace primary slag has been explored limitedly and its viscosity–structural property is not fully understood ...

The multiphase reaction among coke, primary slag, and liquid iron has been studied by using different experimental schemes. The influence of FeO reduction on the C content dissolved in the molten ...

Primary slag formation of the blast furnace ferrous burden was experimentally simulated using synthetic MgO-Al2O3-CaO-SiO2 slags with FeO, Na2O, or FeS additions. The combined effect of FeO and ...

Primary Slag in a Blast Furnace DOI 10.1515/htmp-2016-0148 Received July 6, 2016; accepted December 23, 2016 Abstract: The performance of the primary slag in the

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Primary slag formation of the blast furnace ferrous burden was experimentally simulated using synthetic MgO-Al2O3-CaO-SiO2 slags with FeO, Na2O, or FeS additions. The combined effect of FeO and ...

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primary-slag sequentially decreasing and the cohesive zone moves to the low temperature zone. In addition, the maximum pressure di erence increases, and the gas permeability deteriorates.

primary slag from ghana; What is Oxy-Fuel Cutting? Step 1: Preheat. Before you can start cutting the steel, it has to be heated up to its kindling temperature, about 1800°F.

2 18 Synopsis: 19 To obtain the formation characteristics of melting slag-iron in cohesive zone of hydrogen rich 20 blast furnace (BF), the phase composition of primary slag, the variation of slag amount and the 21 mechanism of metal iron carburizing under different atmosphere conditions were analyzed. The 22 results showed that: The hydrogen-rich operation in BF changes the …

Abstract The effects of MgO, Al2O3, C/S (CaO/SiO2) and FeO on the viscosity and the liquidus temperature (TLQ) of blast furnace (BF) primary slag were analyzed by using multiphase equilibrium. The results show that the TLQ of primary slag exhibits a minimum value at 12 wt% Al2O3 and 14 wt% Al2O3 when MgO contents are 8 wt% and 10 wt%, respectively. It …

This research provides fundamental insight into the roles of MgO and Al2O3 on the viscous and structural behaviors of CaO−SiO2−MgO−Al2O3−10 mass% TiO2−5 mass% FeO (CaO/SiO2 = 1.3) system primary blast furnace slag. The slag viscosity is measured by the rotating cylinder method, which is essential to the efficient and stable operation of a blast …

In order to assess the possibilities of using ferrous slags generated in Ghana, selected slag samples from some foundries have been characterized. A total of six bulk samples were …

Permeability is crucial for stable operation and strengthening of smelting in blast furnace ironmaking, especially for the current utilization of low-grade iron ore. The viscosity of the primary slag is an important factor affecting permeability. In this study, the roles of MgO and Al2O3 in the viscous and structural behavior of CaO-MgO-Al2O3-SiO2-10 mass pct FeO (CaO/SiO2 weight …

The softening–melting behavior of the BF primary slag has been previously investigated. Chuang et al. [11] investigated the effects of basicity and FeO content on the softening and melting temperatures of the CaO–SiO 2– MgO–Al 2O 3 slag system and reported that these tempera-tures significantly decreased as slag basicity decreased.

To clarify the primary slag melting behavior of sinters, the microstructure and phase changes during the melt producing process were observed: Sinters were heated under the temperature history and the CO/CO 2 ratio simulating a blast furnace condition and quenched from several different temperatures between 1000 and 1250°C. The microstructures of the quenched …

Abstract The performance of the primary slag in the cohesive zone of blast furnace is critical for smooth operation of blast furnace ironmaking process. In the present work, the CaO–SiO2–MgO–TiO2–Al2O3–FeO slag system was studied to identify the influence of the FeO and the TiO2 on the melting features and viscosity. The temperatures of melting features are …

In order to assess the possibilities of using ferrous slags generated in Ghana, selected slag samples from some foundries have been characterized. A total of six bulk samples were collected from three different foundry shops to determine their chemical and mineralogical composition.

The objective of this study is to understand the influence of Al2O3 on blast furnace operation by studying the properties of primary slag and final slag. The effects of Al2O3 on liquidus temperature, liquid phase proportion and fluidity in the CaO–MgO–SiO2–Al2O3–FeO quinary slag system have been discussed in this paper. The results show that the influence of …

To clarify the primary slag melting behavior of sinters, the microstructure and phase changes during the melt producing process were observed: Sinters were heated under the temperature history and the CO/ CO 2 ratio simulating a blast furnace condition and quenched from several different temperatures between

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Slag phases can be divided into interfacial slag and endogenous slag, depending on the formation pathway [12]. In particular, the endogenous slag phases formed within the ore are the basis for the formation of interfacial slag phases [13], [14], [15]. However, cohesive zone slag, called primary slag, is always treated as a whole [16], [17], [18 ...

In order to assess the possibilities of using ferrous slags generated in Ghana, selected slag samples from some foundries have been …

of blast furnace (BF) primary slag were analyzed by using multiphase equilibrium. The results show that the T LQ of primary slag exhibits a minimum value at 12 wt% Al 2O 3 and 14 wt% Al 2O 3 when MgO contents are 8 wt% and 10 wt%, respectively. It can be suggested that the content of MgO in primary slag is prone to be retained at different ...

Abstract: Slags produced from metal refinery have been used in Ghana for several purposes including road, building and other constructions. However detailed com positions of these …

Find the latest exports, imports and tariffs for Granulated Slag trade in Ghana.

The alumina content in the iron ore imported to Japan is increasing year by year, and some problems in blast furnace operation, due to the use of the high-alumina-containing sinter, have already been reported. In order to clarify the mechanism of the harmful effect of alumina on the blast furnace operation, the behavior of the primary melt, which is formed in the …

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3,8932 . 27,7137 : 4,9844 . 5,8785 : 0,0340 . 0,3972 : Slag mineralogical composition was determined using an Empyrean diffractometer. The results of the analysis are

The effect of B 2 O 3 on reduction of FeO from iron saturated FeO–CaO–SiO 2 –MgO–Al 2 O 3 –TiO 2 slags by graphite has been studied under static conditions between 1473 and 1573 K. The compositions of quenched samples were determined by electron probe X-ray analysis (EPMA). The reduction degree (R) of FeO in each sample was obtained by mass …