Efficient Recycling of Valuable Metals from Waste Copper

2022年6月21日Copper slag is a by-product produced in the copper smelting and converting processes. [ 1] Every year, more than 40 million tons of copper slag is

Global Copper Slag Market Share 2022 Sales, Trend

2022年9月28日Global Copper Slag Market Share 2022 Sales, Trend Analysis, Market Overview, SWOT Analysis, Global Growth, Industry Size and Forecast to 2028

Copper Slag an overview ScienceDirect Topics

The chemical composition of copper slag varies with the type of furnace. The typical composition of smelting slags is Fe (as FeO, Fe 3 O 4) 30–40%; SiO 2 35–40%; Al 2 O 3

Effect of Fluorine on Copper Slag Properties and Structure

2023年1月20日Apparatus and Procedure. A series of experiments were conducted in a vertical tube furnace with nitrogen as a protective atmosphere. A schematic diagram of

Copper slag Wikipedia

OverviewApplicationsCharacteristicsLife Cycle Analysis of Copper Slag AggregateMechanical Properties of Copper Slag AggregateSee also

Copper slag is mainly used for surface blast-cleaning. Abrasive blasting is used to clean and shape the surface of metal, stone, concrete and other materials. In this process, a stream of abrasive grains called grit are propelled toward the workpiece. Copper slag is just one of many different materials that may be used as abrasive grit. Rate of grit consumption, amount of dust generated, and surface finish quality are some of the variables affected by the choice of grit material.

Stepwise Utilization Process to Recover Valuable

2021年2月17日In this , a stepwise extraction process was proposed to recover valuable elements (copper, iron, lead and zinc) from waste copper slag. The specific

Image of direct-to-blister copper flash smelting slag

Furnace slag from direct-to-blister smelting of copper concentrates contains 12–15% of copper and 2.5–4% of lead. In this form it cannot be deemed as waste material, and

Thermodynamics Evaluation and Verification of High-Sulfur

2022年12月21日The copper slag is composed of glass phase and small quantities of particles, indicating that the raw material is typical water-quenched slag. The particles

Improvement of the thermal properties of alkali-activated fly ash

2022年12月1日Linked to the addition of copper slag, it is clearly seen that copper slag was more effective on the mechanical properties at the higher W/B. Similar to the copper

Reduction Kinetics of Copper Slag by H2 Semantic Scholar

2022年4月28日The main phases of the copper slag were Fe2SiO4 and Fe3O4. The suitable conditions of reduction were a temperature of 1373.15 K, a H2 partial pressure

Characteristics and utilisation of copper slag—a review

2003年11月1日The copper slag that is usually found is an impure iron silicate glass with small inclusions of copper and copper sulphide. The chemical composition of slag varies with the types of furnace or process of treatment. The typical composition of copper slag is given below. Fe: 30–40%, SiO 2: 35–40%, Al 2 O 3: ⩽10%, CaO: ⩽10%, Cu: 0.5–2.1%. 3.

Comprehensive review on metallurgical recycling and cleaning of copper slag

2021年5月1日Arsenic (As), a toxic element and Pb, a heavy metal also exist in some copper slags. As shown in Table 1, almost all the copper slags contain a considerable amount of Cu (0.5% 2.7%) and Fe (31.7% 40.3%), which come up to or even higher than those of some general Cu and Fe ore mines.

Slide Gate Technology for Slag Tapping SpringerLink

2022年2月3日As an illustration, to produce one tonne of copper or ferro-chrome, approximately 2.0–3.0 tonnes of copper slag and 1.1–1.6 tonnes of ferro-chrome slag,respectively, are generated as a by-product material. A commissioning as well as after-sales support for steel and non-ferrous industries

Characteristics and chemical speciation of waste copper slag

2021年1月6日Waste copper slag contains abundant valuable metal element Fe, and residual elements such as Cu, As, Pb, Zn, and Mo. Simply stockpiling or landfilling would waste valuable metal resources and cause contamination due to

(PDF) USE OF COPPER SLAG AS SUSTAINABLE AGGREGATE

2014年10月17日The following slags were investigated: slag originated from the primary copper production process in the flash furnace of the Outtokumpuja Company in HM Głogów 2 (Sample S2): the same slag after

Alternative Reduction of Copper Matte in Reduction Process

In reduction of copper slag, the recovery of metal is 88.50%. In reduction of matte in metal, the removal rate of sulfur is 99.64%. The sulfur is with the presence of CaS in slag eventually. KEY WORDS: copper slag; Fact-Sage; matte; alternative reduction; antibacterial stainless steel. agent, reduced copper slag under 1 250°C, made reduc-

Crystallization Behaviors of Copper Smelter Slag Studied

3.1 Copper slag Water quenched copper slag obtained from the flash furnace of a copper smelter was used in the experiments. The chemical composition of the slag is shown in Table 1. The result is an average value came from multiple sampling, mixing and uniforming. Figure 3 shows the SEM image and EDS elemental map of the copper slag.

Stepwise Utilization Process to Recover Valuable Components from Copper

2021年2月17日Waste copper slag is a typical hazardous solid waste containing a variety of valuable elements and has not been effectively disposed of so far. In this , a stepwise extraction process was...

Frontiers Study on Preparation of Oxygen Carrier Using Copper Slag

Copper slag, an important by-product of the copper smelting process, is mainly composed of 2FeO SiO2, Fe3O4, and SiO2. Due to the sufficient metal oxides, copper slag is regard as a potential oxygen carrier (OC), which can be applied in chemical looping technology. This research proposed to use the granulated copper slag particles as precursor to

Thermodynamics Evaluation and Verification of High-Sulfur Copper Slag

2022年12月21日The copper slag is composed of glass phase and small quantities of particles, indicating that the raw material is typical water-quenched slag. The particles are determined as copper mattes via elemental analysis. The components of matte include FeS and CuS, which are distributed in layers.

Characteristics and utilisation of copper slag—a review

2003年11月1日The copper slag that is usually found is an impure iron silicate glass with small inclusions of copper and copper sulphide. The chemical composition of slag varies with the types of furnace or process of treatment. The typical composition of copper slag is given below. Fe: 30–40%, SiO 2: 35–40%, Al 2 O 3: ⩽10%, CaO: ⩽10%, Cu: 0.5–2.1%. 3.

Comprehensive review on metallurgical recycling and cleaning of copper slag

2021年5月1日Arsenic (As), a toxic element and Pb, a heavy metal also exist in some copper slags. As shown in Table 1, almost all the copper slags contain a considerable amount of Cu (0.5% 2.7%) and Fe (31.7% 40.3%), which come up to or even higher than those of some general Cu and Fe ore mines.

Slide Gate Technology for Slag Tapping SpringerLink

2022年2月3日The slag is tapped out through the tap-hole channel and copper block to a water-cooled launder. The copper block without any applied cooling has an outer surface temperature between 600 and 750 ℃ during tapping. Tapped slag at 1200 ℃ is typical of NFM iron silicate slags.

Characteristics and chemical speciation of waste copper slag

2021年1月6日Waste copper slag contains abundant valuable metal element Fe, and residual elements such as Cu, As, Pb, Zn, and Mo. Simply stockpiling or landfilling would waste valuable metal resources and cause contamination due to

(PDF) USE OF COPPER SLAG AS SUSTAINABLE AGGREGATE

2014年10月17日The following slags were investigated: slag originated from the primary copper production process in the flash furnace of the Outtokumpuja Company in HM Głogów 2 (Sample S2): the same slag after

Alternative Reduction of Copper Matte in Reduction Process

In reduction of copper slag, the recovery of metal is 88.50%. In reduction of matte in metal, the removal rate of sulfur is 99.64%. The sulfur is with the presence of CaS in slag eventually. KEY WORDS: copper slag; Fact-Sage; matte; alternative reduction; antibacterial stainless steel. agent, reduced copper slag under 1 250°C, made reduc-

Crystallization Behaviors of Copper Smelter Slag Studied

3.1 Copper slag Water quenched copper slag obtained from the flash furnace of a copper smelter was used in the experiments. The chemical composition of the slag is shown in Table 1. The result is an average value came from multiple sampling, mixing and uniforming. Figure 3 shows the SEM image and EDS elemental map of the copper slag.

Image of direct-to-blister copper flash smelting slag

According to the unreacted nuclear model, the reduction process of copper slag is controlled by internal diffusion and chemical reaction. With the increase of the reduction ratio, internal...

Frontiers Study on Preparation of Oxygen Carrier Using Copper Slag

Copper slag, an important by-product of the copper smelting process, is mainly composed of 2FeO SiO2, Fe3O4, and SiO2. Due to the sufficient metal oxides, copper slag is regard as a potential oxygen carrier (OC), which can be applied in chemical looping technology. This research proposed to use the granulated copper slag particles as precursor to

Minerals Free Full-Text Reduction Kinetics of Copper Slag by

2022年4月28日The copper slag, after reduction, was heated to 1773.15 K for 4 h. The content of iron in the metal was 85.11%, and the copper content was 10.40%. According to the unreacted nuclear model, the reduction process of copper slag is controlled by internal diffusion and chemical reaction. With the increase of the reduction ratio, internal diffusion