Upgrading copper slag cleaning tailings for re-use

Tailings from an industrial copper slag cleaning milling and flotation circuit have been pre-reduced at low temperatures, well below its melting point, using CH 4-H 2-Ar mixtures with the aim of metallizing its iron oxide component to metallic iron.The treatment carried out at 700–900 °C, with a duration of up to 90 min, indicated a …

A Review of Comprehensive Utilization of Copper Slag of …

There are two ways of cooling copper slag: slow cooling and water quenching. Different cooling speed will determine the particle size and mineral composition of copper minerals in copper slag. ... Then through grinding and flotation, the copper content in the copper slag was reduced to 0.2–0.3%.

Extraction of copper from copper slag: Mineralogical

Milling and froth flotation methods are quite common when dealing with slow-cooled slags. ... Effect of Cooling Rate and Slag Modification on the Copper Matte in Smelting Slag Article

Improving Beneficiation of Copper and Iron from …

Indeed, these are effective routes to recover and utilize the copper and other non-ferrous metals. Particularly, it is considerably successful to recovery copper from slow-cooled copper slag by flotation process. …

Laboratory Test Works and Plant Trials for Milling and …

Laboratory flotation tests of slow cooled converter slag have showed that 92.5% copper recovery at the copper cut-off grade of 24 - 25 % can be achieved by using a 50:50 ratio of DSP330 and

milling and flotation of slow cooled copper slag

How to Cite. Tan, P., Oalvez, A., Yunus, L. and Copper, X. (2012) Laboratory Test Works and Plant Trials for Milling and Flotation of Slow Cooled Copper Slag, in T.T … » More detailed. Outotec – Slag concentrator. The process is based on slow cooling of the molten slag, crushing and wet-grinding of the cooled slag and recovery of copper by ...

Laboratory Test Works and Plant Trials for Milling and Flotation …

Download Citation | On May 15, 2012, Pengfii Tan and others published Laboratory Test Works and Plant Trials for Milling and Flotation of Slow Cooled Copper Slag | Find, read and cite all the ...

Minimization of Copper Losses in Copper Smelting Slag …

Smelters using slag milling and flotation for slag cleaning generally operate under conditions where most of the copper in slag would tend to form Cu 2 S upon cooling, although some metallic copper may still form via reaction 3.7 Ideally, the slag should be slow cooled to allow most of the copper to form larger matte prills (over 30 …

sbm/sbm copper slag milling and flotation process.md at …

Contribute to brblmd/sbm development by creating an account on GitHub.

milling and flotation of slow oled pper slag

Laboratory Test Works and Plant Trials for Milling and Laboratory Test Works and Plant Trials for Milling and Flotation of Slow Cooled Copper Slag Pengfii T. Toggle navigation. Home; About Us; Products; Cases; Solutions; ... milling and flotation of slow oled pper slag T05:06:31+00:00 Who we are > Products > Cases > Solutions ...

milling and flotation of slow cooled copper slag

Another aspect that can affect both the milling and flotation of CS is the cooling behavior of the slag Several researchers have reported that slow cooling of the slag can lead to an improvement in copper recovery because of the segregation of some valuable elements such as copper silver and I NGENIER IA E I NVESTIGACIONV OL 41 N O 1 Milling ...

Characteristics and utilisation of copper slag—a review

Air-cooled copper slag has a black colour and glassy appearance. The specific gravity varies with iron content, from a low of 2.8 to as high as 3.8. ... Characterization studies on the tailings of the slag flotation mill from the Khetri Copper Project in Rajasthan (Natarajan et al., 1980) containing on an average 0.2–0.4% Cu, to …

Effects of fluxing conditions on copper smelting slag …

°C) with 2–3 wt% Cu remaining in the smelting slag. At present, the recovery of copper from slag is processed by slow cooling, milling and flotation at Fangyuan. Bottom blown oxygen copper smelting technology has demonstrated great potential and will be transferred to other plants around the World. In addition to the flotation process ...

Effect of Cooling Rate and Slag Modification on the …

Milling and froth flotation methods are quite common when dealing with slow-cooled slags. Before flotation, the slag needs to be cooled ... higher-grade copper slag concentrate at a cooling rate of

Copper Recovery Through Smelter Slag Flotation in …

Copper slag flotation was studied on an industrial scale at a concentrator plant in the region of Atacama, Chile. ... Another aspect that can affect both the milling and flotation of CS is the cooling behavior of the slag. ... Xue, P., Li, G., and Qin, Q. (2016). Recovery of copper from slow cooled ausmelt furnace slag by floatation ...

Copper Recovery from Copper Slags through Flotation

Moreover, the flotation kinetic model of copper slag was established and the results showed that the movement of copper slag in the flotation process conforms to the first-order kinetics.

Slag Cleaning: The Chilean Copper Smelter Experience

The distribution of matte particles in each slag layer after cleaning was investigated in detail, which indicates that the copper content in the upper slag layer can be reduced to 0.56 wt pct via ...

Comprehensive review on metallurgical recycling and …

The flotation process is relatively efficient only for the recovery of copper sulphide and mechanically entrained metallic copper from a slow cooling copper …

Laboratory Test Work and Plant Trials for Milling and Flotation of Slow

"Laboratory flotation tests of slow cooled converter slag have showed that 92.5% copper recovery at the copper cut-off grade of 24 - 25 % can be achieved by using a 50:50 ratio of DSP330 and SIBX (sodium isobutyl xanthate) at the natural pH of 7 and with a grinding time of 18.5 minutes. 70ìéç is the P80 achieved at this grinding time. MIBC is …

Flotation of copper sulphide from copper smelter slag …

Copper smelting slag is the largest solid waste produced in copper-making process, and slow cooling beneficiation technology is the most widely used method in recovering remaining treasures from ...

(PDF) Enhancing the flotation recovery of …

Total copper flotation recoveries before and after regrinding of the tailings using Na 2 S. ... Copper smelting slag is the largest solid waste produced in copper-making process, and slow cooling ...

The effect of primary copper slag cooling rate on the copper

Technological procedure of slow cooling slag from primary copper production is applied in the purpose of copper recovery in the level of 98.5% to blister. This technological procedure is divided into two phases, first slow cooling of slag on the air ... Currently, the slags are sent to a milling and flotation plant for liberation and recovery ...

Copper recovery from copper slags through flotation

Moreover, the flotation kinetic model of copper slag was established and the results showed that the movement of copper slag in the flotation process conforms to …

Laboratory Test Works and Plant Trials for Milling and …

Laboratory Test Works and Plant Trials for Milling and Flotation of Slow Cooled Copper Slag - T.T. Chen Honorary Symposium on Hydrometallurgy, …

Recovery of copper from reverberatory furnace slag by flotation

The optimum condition for flotation of the reverberatory furnace slag at Sarcheshmeh Copper Complex is as follows : pH=11.5; R407=30 g/t; solid in pulp=30%; flotation time=12.5 min; MIBC=35 g/t. Slow cooling of the molten slag (in the range of 1300–900 °C) increases the copper recovery considerably (about 85%), and can also …

Recovery of metal values from copper slag and reuse of …

They used mercaptobenzothiazole (MBT) collector to recover the copper from the ground copper slag and indicated that a slow-cooled slag would be more favorable for better copper recovery. Flotation of ground copper slag was also studied by Bruckard et al. (2004). According to them, using a two-stage flotation process, 80–87% Cu can be ...

Laboratory test work and plant trials for milling and flotation …

Laboratory flotation tests of slow cooled converter slag have showed that 92.5% copper recovery at the copper cutoff grade of 24-25 % can be achieved by using …

Review on Comprehensive Recovery Valuable Metals and

After the molten copper smelting slag is cooled gently, the flotation is carried out. 70% copper in the slag is recovered, and the copper content in the tailings can be controlled within 0.30% [13, 14]. However, except the copper content is reduced, the phase structure of the tailings is no different from that before flotation, and the threat ...

milling and flotation of slow cooled copper slag

a drying oven to dry the slurry and bioleaching 11 have been proposed.Milling and froth flotation methods are quite common when dealing with slow-cooled slags.Before flotation and slow cooling in a ladle .In the past few years different collectors and floating process were investigatedmilling and flotation of slow cooled copper slag - Solutions & …

Microscopy Analysis of Copper Slag and Its Processing by Flotation

Technological procedure of slow cooling slag from primary copper production is applied in the purpose of copper recovery in the level of 98.5% to blister. This technological procedure is divided into two phases, first slow cooling of slag on the air for 24 hours, and then accelerated cooling with water for 48 hours.

Effect of Cooling Rate and Slag Modification on the Copper …

Milling and froth flotation methods are quite common when dealing with slow-cooled slags. Before flotation, the slag needs to be cooled in a controlled manner. There are multiple options for this, such as natural cooling, casting mill cooling, water quenching, and slow cooling in a ladle [ … See more

A comprehensive review on the recovery of copper values …

Researchers have investigated the effect of the cooling rate of copper slag on the recovery of metallic values through the physical beneficiation route. Studies were …

Simultaneous recovery of arsenic and copper from copper smelting slag

The molten CS was slowly cooled to a solid state under atmospheric conditions and then crushed to <100 mm. The required CS was randomly collected from 10 sampling points and was crushed to <2 mm using a jaw crusher. ... A potential industrial waste–waste synchronous treatment scheme of utilizing copper slag flotation tailings to …

The recovery of copper, by flotation, from calcium

By simultaneous adding old flotation tailings in the ball mill at the rate of 9%, it is possible to increase copper recovery for about 20%. ... recovery copper from slow-cooled CS by flotation ...

Laboratory Test Works and Plant Trials for Milling and Flotation …

Laboratory Test Works and Plant Trials for Milling and Flotation of Slow Cooled Copper Slag. Pengfii Tan, Pengfii Tan. Search for more papers by this author. Alberto Oalvez, Alberto Oalvez. Search for more papers by this author. Lucya Yunus, Lucya Yunus. Search for more papers by this author.