Keyword: Slag, nickel, waste, tailings, recycling, nickel metallurgy, iron, slag recycling. Depletion of existing ore deposits and continued growth in non-ferrous metals production have spurred sci-entific and industrial interest in using industrial waste from metallurgical enterprises in the production process as
The recycling method of ferronickel slag, which is an aspect of the present invention, comprises the steps of preparing a ferronickel slag, separating the ferronickel slag into an adherent slag and a non-adsorbed slag by primary magnetic separation, and separating the separated non-adhered slag. Crushing and the second step of separating the crushed slag into a magnetic slag and a …
Recycling nickel slag by aluminum dross can realize the 'utilization of waste heat' and the 'recovery of waste into resource'. Based on the molecular dynamics study, the influences of w('FeO')/w(Al 2 O 3) and w(Al 2 O 3)/w(SiO 2) on the degree of polymerization (DOP) evolution have been discussed.As w('FeO')/w(Al 2 O 3) decreases from 1.69 to 0.48, the first peak of …
The present invention relates to a method for recycling ferronickel slag, the step of magnetically separating the ferronickel slag first, and the step of pulverizing the ferronickel slag from which the iron component has been removed by magnetic force separation to 500 µm or less, and the crushed ferro. And storing the nickel slag powder and recycling the stored ferronickel slag …
A method of recycling a ferronickel slag, which is an aspect of the present invention, comprises the steps of preparing a ferronickel slag, separating the ferronickel slag into a zeolite slag and a non-zeolite slag by selecting a first magnetic force, Crushing the crushed slag, and separating the crushed slag into a zeolite slag and a non-complexed slag by …
More than 30 million tons of ferronickel slag (FNS) are annually discharged in China. FNS has become the fourth largest type of smelting industrial waste after blast furnace slag, steel slag and red mud (Huang et al., 2017).FNS is found to be useful in many applications, such as metal recycling (Zulhan and Agustina, 2021; Gu et al., 2021), glass (Kim et al., 2018), …
The process of crushing slag begins with the feeding of the slag into the Slag Crusher Machine. The machine crushes the slag to the desired size, and the crushed slag is then separated and removed from the machine. ... The machine can be used to crush large chunks of slag into smaller pieces, making it easier to transport and recycle. By using ...
The management of the slag in this first step is central to the success of the E-Scrap recycling process. The E-Scrap ISASMELT™ furnace has a highly turbulent bath, providing conditions that generate high rates of zinc fuming and allow a wide range of operable slag conditions. ... nickel-, and copper-rich slag in the second stage [6,30]. The ...
Steel slag recycling is a serious problem in China. The volume of steel slag is growing rapidly because the output of steel is steadily increasing; however, slag's utilization remains relatively low. The utilization rate in China is only 29.5%, whereas the utilization rate of steel slag in industrial countries is more than 85%.
Utilizing nickel slag as aggregates in concrete production proposes an economic option for recycling this industrial by-product, and meanwhile preserves the natural rock aggregate resources. Thus, there is an urgent need to further explore the potentially alkali-silica reaction (ASR) nature. ... After cooling and crushing, the nickel slag ...
The smelting process can be divided into three stages, namely decomposition of high-valence sulphide, oxidation of sulphide, and matte smelting and slagging reaction (Fig. 1).The efficiency of matte smelting and matte-slag separation, as well as the extent of copper losses to slag are mainly affected by the oxidation/reduction potential, matte grade, smelting …
In this study, recycled Ni smelter slag has been used as a reactive medium for arsenic (As) removal from aqueous solutions. The results of the study showed that 10.16–11.43-cm long columns containing 451–550 g of slag operated for at least 65 days were able to remove 99–100 % As species from continuously flowing contaminated water at an initial As …
After crushing and screening the ore, selective reduction roasting is carried out. ... This process achieves a short process recycling of nickel–iron, Yuan et al. ... there is an urgent need to develop environmentally friendly methods for recycling nickel–iron slag. Researchers have made considerable efforts in this area, and currently, ...
Nickel Slag Air-cooled nickel slag is brownish-black in color. It crushes to angular particles but has a smooth, glassy texture. The specific gravity of air-cooled nickel slag may be as high as 3.5 (15), while the absorption is quite low (0.37 percent). (3) The unit weight of nickel slag is somewhat higher than that of conventional aggregate. ...
A steelmaking slag is often given a name corresponding to a specific unit operation, such as DeS slag, BOF slag, LMF slag or EAF slag. Recycling of these slags in economic ways has been a very challenging task and has attracted broad attention for decades (Alanyali et al., 2006, Dippenaar, 2004, Menad et al., 2014, Murphy et al., 1997, Shen and ...
Nickel slag is a metallurgical solid waste from nickel refineries, which can be recycled as one of excellent secondary sources due to valuable iron contents. In this work, the approach of recycling nickel slag by aluminum dross was proposed, and the processes of network modification of slags and reduction were successively investigated at 1773 K.
RE TECH, in the context of battery crusher systems, refers to a specific manufacturer specializing in recycling technologies. We offer advanced solutions for crushing and sorting batteries, aiming to recover valuable materials while ensuring environmental compliance.. The standard capacity of this battery crusher and sorting system is 100,000t batteries per year, waste lead batteries …