Environmental Guidelines for Nickel Smelting and Refining

streams of some process effluents to prevent a build-up of various impurities. Solid wastes from nickel sulfide ores often contain other metals such as copper, and precious metals, and consideration should be given to further processing for their recovery. Slag can be used as construction material after nickel recovery …

Nickel recovery from electric arc furnace slag by magnetic ...

Taking into account the great quantity of slag produced per year, the recovery of nickel from the EAF slag will add benefits to the entire process. The target of the current work is to investigate the possibility of nickel recovery from EAF slag by magnetic separation.

JOM 0610: Cobalt-Its Recovery, Recycling, and Application

The newest Lewatit MonoPlus TP 207 is used in separating magnesium and calcium from nickel and cobalt solution as well as in nickel recovery. 9 MRT 10,11 SuperLig ® 241 can be used to extract and polish nickel from a cobalt feedstock solution, which is very effective in separating nickel from cobalt when the Co/Ni ratio ranges up to 500–1,000:1.

Nickel Smelting and Refining - IFC

nickel sulfide ores often contain other metals such as copper and precious metals, and con-sideration should be given to further process-ing for their recovery. Slag can be used as construction material after nickel recovery, as appropriate (e.g., re turn of converter slag to …

Nonferrous Slags - Material Description - User Guidelines ...

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.

RECOVERY OF COPPER FROM SMELTING SLAG BY …

Recovery of copper from smelting slag by sulphation roasting and water leaching 411 Materials and experimental methods Experiments were conducted using a reverberatory furnace slag from the Bor Copper Concentrator, Serbia. The slag was sampled from the crushing line before entering the milling section of the concentrator.

NICKEL RECOVERY FROM ELECTRIC ARC FURNACE SLAG BY …

During the pyrometallurgical treatment of the nickel-bearing laterite in the plant of G.M.M. S.A. LARCO, slag is produced after treatment in electric-arc furnace (EAF) that contains 0.10 to 0.20 % Ni. Taking into account the great quantity of slag produced per year, the recovery of nickel from the EAF slag will add benefits to the entire process.

(PDF) Nickel recovery from electric arc furnace slag by ...

PDF | During the pyrometallurgical treatment of the nickel-bearing laterite in the plant of G.M.M. S.A. LARCO, slag is produced after treatment in electric-arc furnace (EAF) that contains 0.10 to ...

The Kennecott Process for Nickel-Slag Cleaning | SpringerLink

The Kennecott Process for Nickel-Slag Cleaning. Authors; Authors and affiliations; P. R. ; J. J. Kim; ... "Pyrometallurgical Process for Smelting Nickel and Nickel-Copper Concentrates Including Slag Treatment," United States Patent No. 4,036,636, July 19, 1977. ... "Recovery of Nickel from Thompson Smelter Electric Furnace Slag ...

Reductive Smelting for the Recovery of Nickel in a DC Arc ...

If oxides are present, reductive smelting is used to get the nickel into the metallic form. One useful way of recovering the nickel is to collect it in an iron alloy. A DC arc furnace can be used very effectively for this purpose. Mintek has demonstrated this process on a number …

Cobalt extraction - Wikipedia

The Sherritt process is a hydrometallurgical process named for Sherritt Gordon Mines Ltd. (now Sherritt International) of Sherridon and Lynn Lake Manitoba Canada, based on the older Forward process developed by Dr. Frank Forward for the recovery of copper and nickel from those same mines.

Slag/Dross Recovery- - Metalcess

Slag/dross and leaching residue are produced from the process of metal extraction. The commonly-seen slag/dross/residue includes copper dross, lead dross, tin slag, zinc leaching residue, antimony/arsenic dross, cadmium residue/cake, sulfur residue/cake, vanadium slag, nickel slag, iron tailing and iron bearing red-mud waste.

Separation and Recovery of Valuable Metals from Nickel ...

With the increased requests for more sustainable extraction processes feedstocks with low metal content are becoming more attractive. In this research, an additional refining step is investigated in order to recover valuable metals from slag generated during nickel extraction process, particularly copper, nickel, and cobalt. Slag was settled at the different temperatures for various times in ...

Factors affecting nickel recovery from slags produced ...

and again in 2003, in order to identify recovery problems at the slag plant. ANDREWS, L. Factors affecting nickel recovery from slags.produced during platinum smelting VII International Conference on Molten Slags Fluxes and Salts, The South African Institute of Mining and Metallurgy, 2004. Factors affecting nickel recovery from slags produced ...

Reductive Smelting for the Recovery of Nickel in a DC Arc ...

recovery of PGMs and valuable base metals is high, and the recovery of iron to the alloy is still reasonably low. This process is also effective at removing chromium (in this context, a deleterious contaminant) by keeping it dissolved in the slag, and away from the alloy product. Figure 1

CN108265178A - Treatment method for cobalt-nickel ...

[0030] The present process to nickel-cobalt treated wastewater metallurgical slag simple process and low cost, to achieve the re-use of all metal elements and a high purity product, high metal recovery, high value-added products. [0031] : [0031] Advantageous effects of …

Nickel processing | Britannica.com

Nickel processing, preparation of the metal for use in various products. Although it is best known for its use in coinage, nickel (Ni) has become much more important for its many industrial applications, which owe their importance to a unique combination of properties. Nickel has a relatively high

Cobalt processing | Britannica.com

In nickel smelting, most of the cobalt is recovered during electrolytic refining of the nickel by precipitation from solution, usually as a cobaltic hydroxide. But even in nickel smelting, cobalt starts to oxidize before the nickel and can be recovered from the final converter slag.

Enhanced methods for nickel recovery from low-grade ores ...

Sep 06, 2017· I'd like to dig a little deeper into the recovery of nickel, specifically from low-grade ores in the Earth, and from bleed solutions from the electrorefining of other metals. The Importance of Nickel Recovery. Nickel is the fifth most abundant element on Earth, at an average bulk of 2.7%.

Slag - Wikipedia

In nature, iron, copper, lead, nickel and other metals are found in impure states called ores, often oxidized and mixed in with silicates of other metals. During smelting, when the ore is exposed to high temperatures, these impurities are separated from the molten metal and can be removed. Slag is the collection of compounds that are removed.

Nonferrous Slags - Material Description - RMRC

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. ...

Recovery of cobalt, nickel, and copper from slags, using ...

Mintek has been working on the recovery of cobalt, and the associated valuable metals, from slags, since 1988, using DC-arc furnace technology to effect selective carbothermic reduction of the oxides of cobalt, nickel, copper, (and zinc, where present), while retaining the maximum possible quantity of iron as oxide in the slag.

Direct Nickel Process - Outotec

Direct Nickel Process; Outotec® Direct Nickel Process. Get continuous production of high-grade nickel matte with low iron content with the Direct Outotec Nickel Flash Smelting Process. When coupled with our slag cleaning process, nickel smelting is straightforward, cost effective, and does not require ladles or complex plant layouts.

Teck's CESL Nickel Process: Advancing Towards a Commercial ...

In doing so, significant improvements to overall nickel recovery could be achieved. Teck's CESL Nickel Process is a well-developed hydrometallurgical technology which can unlock the nickel from disseminated sulphides and provide a reliable means of nickel production for future projects. 4 Nickel Economic Study Results

Utilization of nickel slag using selective reduction ...

In order to utilize slag discarded by nickel plants, the selective recovery of nickel and copper versus iron was investigated by selective reduction, which was achieved by controlling the reduction parameters and magnetic separation process on bench scale.

Utilization of nickel slag using selective reduction ...

attention in the utilization of nickel slag. This study involves the selective recovery of non-ferrous metals (nickel and copper) versus iron, from nickel slag by selective reduction−magnetic separation process, with an aim to make high-grade nickel and copper concentrate for producing special steel, i.e.

OutOtec HydrOmetallurgical Nickel PlaNts aNd PrOcesses

process by significantly reducing nickel emissions and notably improving the working hygiene of operators. This new technology reduces operating costs and enables fully automated process and oxygen recovery from the electro-winning process. Nickel crystals recovery …

Process for Recovering Chromium Scrap

Described here is a process for recovering chromium and other metals from superalloy scrap. Laboratory-scale experiments were conducted to test a complex flowsheet utilizing a wide range of extractive metallurgical operations.

Fire Assay Procedure - Mineral Processing & Metallurgy

The ability to fire assay a substance relies on a number of facts. First of all, the samples that contain gold and silver should be solubility in molten metallic lead and that gold and silver are insolubility in slag. Fire assay also relies on the difference in specific gravity between the two liquids, the molten lead and the slag.

nickel slag recovery process - connexionscarhire.co.za

nickel slag recovery process - rainbowinstitutionscoin IRON RECOVERY AND PRODUCTION OF HIGH, IRON RECOVERY AND PRODUCTION OF HIGH, process) and the slag, 【Live Chat】 WO2007066350A1 - A process for recovery of iron from, The present invention relates to a process for recovery of iron from copper slag This invention particularly relates ...