New Technology Of Pretreatment Of Slag Iron Separation

China's copper resources are characterized by low grade and complex composition. A large amount of copper smelting slag (CSS) containing valuable elements such as copper and iron is produced through smelting. With the increasing shortage of copper resources, the full recovery of valuable elements in CSS plays an important part in resource utilization …

Iron concentrate with an iron grade of 58.72% and iron recovery of 89.32% was obtained via microwave pretreatment at 1050 °C for 2 min, followed by magnetization roasting at 650 °C for 5 min at ...

[2] Ying Liu, Honghui Fang and Lijun Lu 2014 Research Progress of Steel Slag Treatment and Comprehensive Utilization Technology [J] Chemical Engineering and Equipment 190-192. Google Scholar [3] Dengcheng Su, Xingguo Tang, Renyue Liu et al 2009 Research Progress of Activated Activation Technology of Steel Slag [J] China Cement 4 57-60. Google ...

Development of the New Zinc-Separation Process for the Blast Furnace Dust. Conference paper ... Utilization of by-products such as dust and slag generated in the iron-making process is one of the resource-saving technologies in steel works. ... Maccagni M (2008) From C.Z.O. to zinc cathode without any pretreatment. The Ezinex process. Paper ...

The results show that gravity separation and flotation have no obvious separation effect on iron minerals in nickel metallurgical slag, and magnetic separation has a certain separation effect. At present, the accumulated industrial waste products have been subjected to strict control, and there is an urgent need to recycle metallurgical slag.

An effective strategy to achieve separation and recovery of iron and nickel from low-grade laterite ore via microwave carbothermic reduction roasting is reported. In this work, we

Molecular dynamics simulation study on the tensile properties of polycrystalline iron [J]. Metal World. 10.3969/j.issn.1000-6826.2024.01.0901.

1. Introduction. Titanium has gained recognition as the third strategic metal, following in the footsteps of iron and aluminum [1].Its inclusion as a pivotal strategic metal in the Guidelines for the Development of China's New Materials Industry in recent years is of titanium resources, primarily sourced from ilmenite, which constitutes 98% of all titanium-bearing …

of iron. Therefore, effectively valorization of these waste slags is significant for resources reutilization and environ-mental protection. A novel valorization process of KR desulfurization waste slag into iron-containing substances and desulfurization agent for hot metal pretreatment was investigated. Magnetic separation method was conducted

The development of new technology, comprehensive utilization of copper slag resources, and extraction of valuable metals, such as iron, and can promote the sustainable development of the metallurgical industry. ... 86.70, and 3.13% of Cu element moved into reduction slag, iron ingot and somke in the phase of (CuS, Cu), (Cu), and (CuS ...

The efficient development and utilization of high-phosphorus oolitic hematite is of great strategic significance for the sustainable supply of iron-ore resources in China. In this paper, the mechanism of high-temperature pretreatment for enhancing the effect of iron enrichment and dephosphorization in the magnetization roasting-leaching process was studied by X-ray …

In this work, 50 kg-scale experiments which simulated rotary kiln were conducted to investigate the separation behavior between slag and metal. Main results are as follows. (1) Molten iron …

Ultrasonics is a new water treatment technology that, compared to traditional water treatment technologies, has fewer stringent requirements, shorter action times, and simpler operations. ... With ultrasonic pretreatment, each 15 g of iron slag's drying process can save ... Stuart, L. Green and scalable separation and purification of carbon ...

Deep dephosphorization of high‑phosphorus oolitic iron ore (HPOIO) is extremely difficult because of its refractory characteristics. A new approach for simultaneous iron recovery and dephosphorization from HPOIO by oxidation roasting–gas-based reduction (ORGR) and magnetic separation process was developed.The underlying mechanism was investigated …

Its advantages over precipitation enable the wide application of the extraction method, which has been a research hotspot in the world in petrochemistry, hydrometallurgy, fine chemical industry, separation, and purification of biochemical substances.Iron extraction has been studied extensively due to the damage caused by iron ions to water, soil, and organisms.

The utilization of vanadium slag by reduction technology not only fully utilizes iron and vanadium, but also does not produce ammonia nitrogen waste water, and does not produce waste slag containing toxic hexavalent chromium and pentavalent vanadium. 92.65 % of the vanadium produced in the world is added to steel in the form of ferrovanadium ...

This study opens a new direction for iron enrichment from copper slag. Previous article in ... Separation of silicon and iron in copper slag by carbothermic reduction-alkaline leaching process ... J. Zhang Y. Qi H., Yan, D.L., Xu, H.C. A new technology for copper slag reduction to get molten iron and copper matte J. Iron Steel Res. Int. 22 5 ...

This review first summarizes the classification, production, and utilization of iron-and steel-making slag. Then, methods to the comprehensive utilizing are examined in aspects of main characteristics, pre-treatment methods, primary utilization and high value-added conversion of steel converter slag for environmental protection in China.

This paper creatively proposes a new process with desulfurization slag leached by ammonium chloride as pretreatment, and the main point of this paper lies in the processing of desulfurization ...

Benxi Iron and Steel Company produces 78,000 tons of slag steel and 89,000 tons of iron concentrate with the advanced slag hot disintegrating treatment technique and crusing-screeing-bar mill

Compared with the unmodified slag, the iron recovery rate of the modified slag was greatly increased from 32.40% to 63.36%, which was similar to the total iron grade of the magnetite concentrate. Note that in this study, variations of compound additive dosage were used to modulate the amount of sulfide to control the final iron recovery.

In this study, an innovative ''reduction modification'' technology was employed to enhance the properties of mixed slag from blast furnace slag and converter slag at high …

At present, there are two common methods for recovering iron and iron oxides from BOF slag: reduction and oxidation. The reduction method is mainly to reduce the iron-containing oxides in the BOF slag to metallic iron, …

This study proposes an efficient magnetic separating technology. In proposal magnetic separation, a ... iron; slag recycling; physical separation; magnetic separation Introduction In steelmaking process, impurities of molten iron such as silicon (Si), sulfur (S), phosphorous (P) are removed by ... "Pre-Treatment of Hot Metal", The AISE ...

The pretreatment of steel slag is the key to its subsequent comprehensive utilization. ... capacity; however, it occupies a wide area, pollutes the environment, has poor powdering effect and stability, and the separation of slag and iron is not complete. ... Japanese scientists have successfully used steel slag to develop new technology for ...

In the framework of the innovative concept earlier proposed by the authors for utilisation of steelmaking slags, oxidation of iron mono-oxide in the liquid slag was studied experimentally in...

As for the pyrometallurgical processes, the route involved BR reductive smelting at temperature over 1500 °C to obtain metallic Fe of high purity and a slag containing other oxides (Wang et al., 2022, Jovičević-Klug et al., 2024). Slag can be further treated to recover residual Al and Ti (Erçağ and Apak, 1997). Under such conditions, the ...

In order to develop a new recycling process of steelmaking slag, reduction of (Fe tO) and (P 2O 5) in steel-making slag at high temperature have been investigated. In this work, 50 kg-scale experiments which simulated rotary kiln were conducted to investigate the separation behavior between slag and metal. Main results are as follows.

NKK and its group companies have developed a new technology for producing fine concrete aggregate from granulated BF slag. Molten BF slag is tapped from a blast furnace at a …

Sulfur slag is a high-value hazardous waste produced during the refining process of crude tin. To reduce the emission of wastewater, harmful gas, and hazardous residue, a theoretical and experimental investigation was carried out to develop a new process for converting metal to metal sulfide that utilizes physical differences (saturated vapor pressure) for separation.