Recovery of copper, cobalt, and zinc from copper smelter ...

A study on the recovery of copper, cobalt, and zinc from copper smelter and converter slags by roasting with sulfuric acid has been conducted.

Crude Zinc Oxide Dust Recovery-Slag/Dross Recovery-

Hot Dip Galvanizing Slag (Hard Zinc) Recovery. Metalcess provides distillation technology to recycle Hot dip galvanizing slag generated as blue sticky crystal at the bottom of galvanizing pot/kettle, containing impurities like iron and aluminum. Lead Anode Slime Treatment.

US Patent for Recovery of zinc from lead slag Patent ...

The zinc recovery from a unit of slag will decrease as pH increases. When combining the effects of zinc recovery and, slag consumption on operating pH, the net amount of zinc recovered per unit of SO 2 scrubbed is relatively constant no matter what the pH operating point is. However, for a set piece of equipment the scrubbing efficiency will ...

Recovery of Zinc from the Final Slag of Steel's ...

With the rising cost of zinc reaching historic levels, more emphasis is being placed on technologies to increase the efficient utilization of zinc. One area targeted for increased efficiency is in-house recycling of metallic zinc industrial wastes. The largest consumer of zinc is the hot-dip galvanizing of steel. Large amount of zinc slag containing more than 50% zinc, are accumulated during ...

RECOVERY OF ZINC FROM SLAG USING PLASMA ARC FUMING ...

The slag from a zinc-lead blast furnace typically contains 7 - 10% zinc oxide. The process described should reduce this to approximately 2%. This could be further reduced by raising the temperature and bubbling an inert gas through the slag.

RECOVERY OF ZINC FROM LEAD SLAG - Free Patents Online

Aug 13, 2015· The zinc recovery from a unit of slag will decrease as pH increases. When combining the effects of zinc recovery and, slag consumption on operating pH, the net amount of zinc recovered per unit of SO 2 scrubbed is relatively constant no matter what the pH operating point is. However, for a set piece of equipment the scrubbing efficiency will ...

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RECOVERY OF VANADIUM FROM V-BEARING BOF-SLAG …

As the slag storage area is limited this has become a problem for SSAB. The disposition of the slag is also a great waste of vanadium resource. The current potential value of vanadium in the discharged BOF-slag annually amounts to roughly US$ 100 millions. Various attempts have been made in Sweden to recover vanadium from the BOF-slag. In one ...

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A novel method for metal recovery from zinc fuming slags ...

A NOVEL METHOD FOR M E T A L RECOVERY FROM ZINC FUMING SLAGS by Fengxiang He B: Eng., Kunming University of Science and Technology, P. R. China, 1985 M. Eng., Kunming University of Science and Technology, P. R. China, 1988 A THESIS SUBMITTED LN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF APPLIED SCIENCE in THE FACULTY …

blast furnace slag crushing machine blast furnace slag ...

recover zinc from slag ecofer – Crusher Machine For Sale. Crusher Machine For Sale. ... Zinc fuming from lead blast furnace slag ... One constraint to the recycling of slag to recover the metals is that fine materials ... Free Quote. blast furnace slag ladle – Grinding Mill China.

RECOVERY OF COPPER FROM COPPER SLAG AND COPPER …

Recovery of copper from copper slag and copper slag flotation tailings 77by oxidative leaching Leaching with ferric sulphate The slag and the slag flotation tailings were leached with ferric sulphate in 1 M sulphuric acid. The ferric iron concentration was varied in the range from 5 g/dm3 to

FUNDAMENTALS OF ZINC RECOVERY FROM …

FUNDAMENTALS OF ZINC RECOVERY FROM METALLURGICAL WASTES IN THE ENVIROPLAS PROCESS Masud A. Abdel-latif Mintek, Randburg, Republic of South Africa ... fundamental issues that are believed to be important in zinc recovery in the Enviroplas ... thus lower ZnO in the final slag, and to enhanced zinc fuming rates. Changes to slag basicity can be ...

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 …

CHROMIC: NEW PROCESSES TO RECOVER METALS FROM …

CHROMIC: NEW PROCESSES TO RECOVER METALS FROM CARBON STEEL, STAINLESS STEEL AND FERROCHROME SLAGS VITO NV, Boeretang 200, 2400 Mol, Belgium Abstract The European H2020 project CHROMIC (GA No 730471) aims to develop new recovery processes for critical (Cr, Nb) and economically valuable (Mo, V) by-product

Slag Fuming Furnaces Recover Zinc and Lead From Copper ...

Jan 12, 2017· Slag Fuming Furnaces Recover Zinc and Lead From Copper Slag. Authors; Authors and affiliations; R. E. Mast; G. H. Kent; Technical Feature. First Online: 12 January 2017. 26 Downloads; 1 Citations; This is a preview of subscription content, log in to …

A novel method for metal recovery from zinc fuming slags ...

A novel method for metal recovery from zinc fuming... Open Collections. UBC Theses and Dissertations. Featured Collection. UBC Theses and Dissertations. A novel method for metal recovery from zinc fuming slags He, Fengxiang 2001 ... The recovery of zinc from the slag is 85 to 90 pet and requires 1 to 2 kg coal per kg zinc (3.3 to 6.5 kg-moles C ...

RECOVERY OF VANADIUM FROM V-BEARING BOF-SLAG …

The Twelfth International Ferroalloys Congress Sustainable Future June 6 – 9, 2010 Helsinki, Finland 189 recovery from dusts and slaGs RECOVERY OF VANADIUM FROM V-BEARING BOF-SLAG

Home - Ecofer

Nov 01, 2017· ECOFER SLAG PROCESSING SOLUTIONS. Ecofer provides its customers with unprecedented, comprehensive and profitable solutions for eliminating heaps of slags with just one process. Through slag processing, the valuable metallic iron and part of ferrous oxides, mixed in with slag in steel production, can be separated and recycled back into the steel ...

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January 2017: VANADIUM RECOVERY -TECHNOLOGY PROJECT - …

Ecofer has done technology development for cold process to recover vanadium from the slag. Technology development has been done in cooperation with a Finnish technology company. Process have been tested and results are promising: In the test we have reached 70% recovery rate with 80%(FeV80) vanadium content.

Recovery of Copper from Reverberatory Copper Slag and ...

several potentially toxic elements, including arsenic, lead, cadmium, barium, zinc and copper. These elements can be released into the environment under natural weathering conditions and cause pollution of soils, surface waters and groundwater (David, 1998). ... copper slag. The optimum digestion temperature is 250oC, at which a high recovery ...

Recovery of zinc from waste material using hydro ...

Recovery of zinc from waste material using hydro metallurgical processes. Authors. Haldun Kurama, E-mail address: [email protected]; ... In this study, an assessment of the technical feasibility of an acidic leach process for the recovery of zinc from slag was considered.

Recovery Of Copper From Reverberatory Furnace Slag By ...

Recovery Of Copper From Reverberatory Furnace Slag By Flotation Prompt : Caesar is a famous mining equipment manufacturer well-known both at home and abroad, major in producing stone crushing equipment, mineral separation equipment, limestone grinding equipment, etc.

Recovery of cobalt and zinc from the leaching solution of ...

A series of characterization of zinc slag have been carried out, including XRD and XRF. The results showed that the contents in slag of zinc and cobalt were 44.24% and 0.38%, respectively. And it is significant to recover the smelting slag. First, zinc slag was leached with sulfuric acid to obtain the leaching solution containing multiple ions.

Treatment of lead and zinc slags in hollow electrode DC ...

zinc from slags is the Ausmelt or Isasmelt process. As the case of slag fuming, coal as reducing agent and solid fuel is injected into the molten slag. But instead of using tuyeres for this purpose, as in slag fuming, the injection is done through a lance14. The final slag contains <0.1% lead and <1.0% zinc and can be used e.g. for road ...

Ecofer Technologies Oy - Espoo, Finland | Facebook

Aug 11, 2013· Ecofer Technologies Oy, Espoo. 35 likes. Ecofer slag processing solutions recover magnetic metals, iron oxides and change the slag tailings to valuable...

Leaching and recovery of zinc and copper from brass slag ...

The effect of leaching time on the leaching of 5 g of slag using 25 g of 30% H 2 SO 4, keeping the agitation rate at 150 rpm and temperature at 35°C, was studied in the range of 5–80 min, Fig. 2.It is clear that the recovery of zinc increases with increasing time up to 10 min then decreases with a …