The slag powder, after mixing with 0.4-0.6% of borates and sintered at 1200°C in 5-6 hours, has become volume stable aggregates. It is then possible to use the treated slag in constructions ...

Slag is a waste product from the pyrometallurgical processing of various ores. Based on over 150 published studies, this paper provides an overview of mineralogical and geochemical characteristics of different types of slag and their environmental …

Section snippets Recycling of slag. Methodology used for recycling the slag has been presented graphically in Fig. 1. Approximately 30 kg of slag was collected from an Indian industrial unit engaged in the manufacturing of pressure vessels, boilers, digesters and chemical process vessels, free of cost. Fig. 2(a) shows the slag as …

Abstract. Slag is a waste product from the pyrometallurgical processing of various ores. Based on over 150 published studies, this paper provides an overview of mineralogical and geochemical characteristics of different types of slag and their environmental consequences, particularly from the release of potentially toxic elements …

When "ferronickel slag" is input, 140 articles related to FNS (2012–2022) are reviewed, of which 93 articles are about the application of FNS in building materials. The research status of the FNS is shown in Fig. 1. The literature statistics are as follows: the research of nickel slag mainly focuses on metal recovery and material properties.

In general, metals, especially Ca and Mg, released from the steel slags allowed CS10 to perform better, which was also related to the similarity in performance between CS10 and Fe10. 4. Conclusions. Recycling WAS and steel slags in making AnGS was a low-cost and effective technology in engineering application.

Microstructure of 0–0.4 mm fraction converter slag: (a) inclusions of metallic iron with dimensions of 0.06 and 0.18 mm, ×200, (b) inclusions of metallic iron with dimensions of 0.03 and 0.31 mm, ×100. Full size image. Steelmaking slag is used in blast-furnace charges at a number of foreign enterprises.

The mass production of steel is inevitably accompanied by large quantities of slags. The treatment of ironmaking and steelmaking slags is a great challenge in the sustainable development of the steel industry. Japan and China are two major steel producing countries that have placed a large emphasis on developing new technologies …

Slag is a typical byproduct generated during high-temperature metallurgical processes. It must be treated appropriately to meet the increasingly strict environmental requirements and to realize the economic benefits.1,2 The present topic, "Slag Metallurgy and Metallurgical Waste Recycling," collects eight articles, which demonstrate the …

Blast furnace slag, ferrochromium slag, and steel slag recycled in bricks. ... Recycling industrial slags in brick manufacturing can help to develop the fired clay bricks with desired properties leading towards cleaner and sustainable construction. 2. Materials and methods. ... The water absorption of bricks is directly related to the apparent ...

Slag is a waste product from the pyrometallurgical processing of various ores. Based on over 150 published studies, this paper provides an overview of …

recycling slag with high Fe content with hydrated lime for soil remediation. Additionally, the name of the area where the contaminated soil was collected is not included in this study, as it is related to conicts of interest. Materials and methods Characterization of contaminated soils Two types of soil (L and H) were collected from the area ...

Choi et al. [ 3] described two possible methods to recycle ladle slag: (a) by pouring molten ladle slag to another ladle, at time (taking advantage of the heat) and (b) by making a ladle slag ingot. The latter option mentioned is complex because of the unstable method used for making ingots.

1. Introduction. Slag examined in this study is defined as the predominantly silicate and oxide by-product derived from smelting metallic ore. The two main types of slag included in this discussion are from the primary production of ferrous ores, from iron and steel manufacturing, and from non-ferrous ores, from the recovery of base metals and …

Considering global steel production of 1878 million tonnes in 2020, the associated slag by-products possess a significant resource of major components like …

In order to lower the environmental impact of the steel industry and ensure its economic sustainability, there have been significant studies finding the ways to recycle …

Harsco Environmental, a steel services company and division of Philadelphia-based Enviri Corp., has signed a multiyear services contract with Brazil-based steelmaker Gerdau S.A. Harsco, which has a collaborative history with Gerdau dating back decades, says the new contract is an inaugural agreement between it and Gerdau within …

Ultromex lands slag recycling contract. ... Peter Matt is a global business leader with experience across a range of manufacturing companies in metals and metals-related industries.… Constellium says scrap usage is at 40 percent. Posted On March 27, 2021 Constellium says scrap usage is at 40 percent