آخرین محصولات
Zinc recovery from metallurgical slag and dust by …
1. Introduction. Currently, the main source of zinc metal is the traditional zinc resource—zinc sulfide ores. However, as the zinc consumption increases and the zinc sulfide ore grades deteriorate, the …
A Thermodynamic and Experimental Assessment of the Recovery …
The most suitable conditions for the reduction of copper slag comprised a temperature of 1450 °C, an alkalinity of 1.2, and a reducing agent ratio of 0.225. This newly developed process was found to recover 95.49% of copper and iron from the slag along with 83.54% of lead and 98.30% of zinc.
A Novel Technology for the Recovery of Zinc from the Zinc …
Zinc leaching residue is an important secondary sources of zinc. To realize recycling utilization of this zinc secondary resource, a novel technology is proposed for the recovery of zinc from the zinc leaching residue by the …
New Hydrometallurgical Treatment to Recover Zinc and Iron …
The high temperature technologies used in EAF dust treatment generally focus merely on the recovery of zinc, leaving iron and heavy metals like lead in the discard slag. This residue can amount up to 3 tonnes per tonne of Zn recovered and forms a harmful waste that cannot be reused but gets landfilled. Furthermore, the pyrometallurgical ...
Synergistic recovery of copper, lead and zinc via …
Trans. Nonferrous Met. Soc. China 33(2023) 3847âˆ'3859 Synergistic recovery of copper, lead and zinc via sulfurizationâˆ'reduction method from copper smelting slag Qing-hua TIAN*, Zhong-chen LI*, Qin-meng WANG, Xue-yi GUO School of Metallurgy and Environment, Central South University, Changsha 410083, China …
Mineralogical Reconstruction of Lead Smelter Slag for Zinc …
In this study, mineralogical reconstruction obtained by sulfidation roasting with pyrite and carbon in the presence of sodium carbonate was conducted to recover Zn from the lead smelter slag.
Emirates Steel inks deal with Ecofer to upcycle 1.6 million tonnes of slag
Finnish firm Ecofer Technologies will process 1.6 million tonnes of steel by-product slag over a two year-period following a deal with the UAE's Emirates Steel that will take effect in 2020 and provide the Emirati building materials giant slag management services for the next 10 years in a bid to boost recycling and waste management.. …
Turning waste into wealth: Synergistic recovery of metal from copper slag
A study published in Transactions of Nonferrous Metals Society of China. detailing a novel method for the recovery of. copper, lead, and zinc from copper smelting slag using a sulfurization-reduction approach.This innovation represents a significant stride in metallurgical waste management, with potential impacts on both industry practices …
Efficient recovery of zinc and copper from copper smelting slag …
1. Introduction. Copper smelting slag (CSS) is the main byproduct produced in the process of making pyrometallurgical copper slag. The annual global CSS production is approximately 68.7 million tons according to the calculation of 2.2–3.0 tons per ton of refined copper (Shi et al., 2008; Wang et al., 2018).The primary chemical components …
Steel Slag Processing — Ecofertec
ECOFERTEC is designing customized steel slag processing and metal recovery plants for each project-specific purposes. The newest technology ECOFERTEC slag processing plant enables the most cost-effective …
Recovery of cobalt and zinc from the leaching solution of zinc …
DOI: 10.1016/J.JECE.2018.11.022 Corpus ID: 106302500; Recovery of cobalt and zinc from the leaching solution of zinc smelting slag @article{Song2019RecoveryOC, title={Recovery of cobalt and zinc from the leaching solution of zinc smelting slag}, author={Shaole Song and Wei Sun and Li Wang and Run-qing Liu and Hai-sheng Han …
Zinc recovery from metallurgical slag and dust by …
Metallurgical slag and dust (MSD) from lead and zinc smelting, steel dust and galvanized steel scrap are important secondary sources of zinc and other valuable metals. This paper describes the production feasibility and rationality of a cleaner zinc recovery process using MSD and a hydrometallurgica …
Emirates Steel signs slag management agreement with …
The slag, which will be crushed down to one to five millimeter granules, will be sold as raw product for the construction industry, after any remaining metals have been extracted from the slag. In addition to waste slag, ECOFER will also process refractory, heat-resistant materials which are exhausted during manufacturing.
Recovery of Indium from Hard Zinc Slag by Pressure …
In this study, hydrometallurgical processes involving pressure acid leaching and solvent extraction were developed to aid recovery of indium from zinc slag, which is produced in the imperial smelting process. Four different acid leaching methods were studied, namely atmospheric leaching, atmospheric leaching with KMnO4, roasting …
The recovery of zinc from hot galvanizing slag in an anion …
DOI: 10.1016/j.jhazmat.2010.05.098 Corpus ID: 19946940; The recovery of zinc from hot galvanizing slag in an anion-exchange membrane electrolysis reactor. @article{Ren2010TheRO, title={The recovery of zinc from hot galvanizing slag in an anion-exchange membrane electrolysis reactor.}, author={Xiulian Ren and Qi-feng Wei …
New technique helps recover more copper, zinc, …
A study by researchers from China's Central South University introduces a new method for recovering copper, lead, and zinc from copper smelting slag, addressing both environmental concerns and...
Zinc recovery from metallurgical slag and dust by …
Metallurgical slag and dust (MSD) from lead and zinc smelting, steel dust and galvanized steel scrap are important secondary sources of zinc and other valuable metals. This paper describes the production feasibility and rationality of a cleaner zinc recovery process using MSD and a hydrometallurgical method.
Recovery of copper, cobalt, and zinc from copper …
slag ratio was subjected to the thermal decomposition at 600, 650, and 700 jC for 0.5–4 h and by blowing 2.5 L/min air to the furnace and then dissolving in hot
(PDF) Leaching and recovery of zinc and copper from brass slag …
Leaching and recovery processes for zinc and copper from brass slag by sulfuric acid were carried out and iron and aluminum were also precipitated as hydroxides in addition to silica gel.
Materials | Free Full-Text | Recovery of Zinc and …
The global shortage of zinc mines makes the extraction of zinc from zinc-containing wastes a hot research topic. Most kinds of steel mill dust (SMD) cannot be directly returned to the ironmaking and …
Highly oriented (002) crystals zinc powder from recovery of zinc …
A flow diagram of the developed process for comprehensive recovery of zinc smelt slag is presented in Fig. 1 a. The zinc slag is mixed with chlorinated NH 4 Cl–NH 3 •H 2 O solution under mechanical stirring, heated to a certain temperature, maintaining the temperature and speed until the end of the reaction. The reacted solution is separated …
Recovery of zinc from galvanizing dross by a method of …
DOI: 10.1016/J.JALLCOM.2017.11.385 Corpus ID: 140007627; Recovery of zinc from galvanizing dross by a method of super-gravity separation @article{Wang2018RecoveryOZ, title={Recovery of zinc from galvanizing dross by a method of super-gravity separation}, author={Zhe Wang and Jintao Gao and Anjun Shi …
Recovery of Copper, Lead and Zinc from Copper Flash Converting Slag …
This research proposed an efficient and environmentally friendly technology for recovering valuable metals from copper flash converting slag. In a reducing atmosphere, pyrite is used as the sulfurizing agent to efficiently and selectively sulfurize and recover Cu, Pb and Zn of copper flash converting slag. Cu of copper flash converting slag is mainly presented in …
Recovery of iron from lead-zinc metallurgical slags by bath smelting
The recovery of iron from iron sinking slag and lead smelter slag was investigated by desulfurization-reduction bath smelting. The effects of lead smelter slag (LSS) to iron sinking slag (ISS) mass ratio and temperature were investigated in desulfurization experiments. The X-ray diffraction (XRD) and X-ray fluorescence (XRF) …
Ecofer Technologies Oy | LinkedIn
Ecofer Technologies Oy | 1,488 followers on LinkedIn. Ecofer Technologies Oy is a part of ECOFER GROUP. Ecofer is a globally well known as a reliable supplier of steel slag processing solutions. We provide slag processing services and supply Ecofer steel slag processing and metal recovery plants to customers across the world.
Slag Recycling and Metal Recovery
As a result of growing environmental awareness, steel slag is now highly regarded as a recycled material that can reduce environmental impact due to its resource-conservation and energy-saving properties. MEKA is …
Materials | Free Full-Text | Recovery of Zinc and …
The zinc powder can be transferred from the electrolyte to the product by the electrodeposition method, and the purified slag and leaching slag can be returned to the steelmaking process to recover …
Recovery of copper, cobalt, and zinc from copper smelter …
In the leaching experiments, the effects of roasting time, acid/slag ratio, roasting temperature, and application of thermal decomposition prior to leaching on the metals dissolution extents were investigated. A total of 88% of copper, 87% of cobalt, 93% of zinc, and 83% of iron were extracted in 2 h of roasting at 150 °C and 3:1 acid/slag ratio.
The Recovery of Cu, Co, Zn, and Mn from a …
The processing of Cu, Co, and Zn at the Boleo project in Mexico involves two-stage (oxidation–reduction) leaching to extract a total of 85–88% Cu in 4 h. The first stage is an oxidation leaching using …
Leaching and recovery of zinc and copper from brass slag …
DOI: 10.1016/J.JSCS.2012.11.003 Corpus ID: 93516475; Leaching and recovery of zinc and copper from brass slag by sulfuric acid @article{Ahmed2016LeachingAR, title={Leaching and recovery of zinc and copper from brass slag by sulfuric acid}, author={Ismail Mohamed Ahmed and AbdElAziz A. Nayl and Jacqueline Abdel Messih …
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