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Trans. Nonferrous Met. Soc. China 23(2013) 3421 3427 Utilization of nickel slag using selective reduction followed by magnetic separation Jian PAN, Guo-lin ZHENG, De-qing ZHU, Xian-lin ZHOU School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China Received 8 October 2012; accepted 30 January 2013 Abstract: In order to utilize slag discarded by nickel ...
Outotec Slag Cleaning Slag cleaning at copper and nickel smelters is typically done using an electric furnace process. The design of Outotec slag cleaning furnaces is based on our extensive experience with different slag compositions and under-standing of how to optimize the process .
United States v. Hanna Nickel Smelting Company, 253 F. Supp. 784 (D. Or. 1966) ... contract DMP-50 would by its terms terminate. When tests established that the smelting process was successful, the Company became obligated, at no profit to itelf, to deliver 125 million pounds of nickel to the Government. ... slag and other waste are stored in ...
NATIONAL SLAG ASSOCIATION Page 2 desired size. The air-cooled slag has little; or no cementitious properties and is primarily utilized as a mineral aggregate used in all types of construction. Granulated slag is a glassy, granular product resulting from rapid quenching of the molten slag.
The company's major nickel assets include the Niihama Nickel Refinery (nickel) in Ehime Prefecture, Japan and a 27.5 percent share ownership in the Ambatovy Project in Madagascar. 09 Anglo American Plc - 34kt Anglo American is a major producer of platinum, diamonds, coal, copper, iron ore and nickel.
The results show that increasing the basicity (mass ratio of CaO to SiO2) of nickel slag facilitates the enrichment of nickel and copper. The process parameters for selective reduction were optimized as follows: basicity of 0.15, reducing at 1200 °C for 20 min, 5% coal on a dried slag mass base.
In 2019 production volumes of non-ferrous slag will be over 116.4 million tonnes worldwide. This new study tracks and critically analyses how this market will develop across the next ten years, with forecast growth at 1.0% CAGR to reach 133.7 million tonnes in 2029.
from this process are nickel-iron scrap, steel scrap, polypropylene, and nickel metal. The second process alternative is to produce ferroalloys utilizing pyrometallurgical processes. The battery electrodes and powders are smelted in an electric air furnace to produce a crude ferronickel product and a slag rich in the hydride alloy elements.
Dec 30, 2018· The optimal process for preparing road Portland cement with nickel slag is: the contents of nickel slag, limestone, fly ash, steel slag, desulfurized gypsum, and calcium fluoride (weight percentage) are 14%, 74%, 4%, 7%, 0.6% and 0.4%, respectively; the calcination temperature is 1350 °C and the heat preservation time is 60 min.
The process includes three operations similar to copper and nickel slag production: (1) roasting, (2) smelting, and (3) converting. Lead and zinc are often related as coproducts in both source and metallurgical treatments, and the various combinations of slags, which include lead, lead-zinc, and zinc, are similarly produced.
Nickel slag abrasive material is a grit that is used in a blast cleaning process prepared by selective screening. Nickel slag abrasive grit is available in various grades and sizes and has a Moh's hardness ranging from 6.5 to 7; which provides improved cutting relative to .
Nickel is recovered through extractive metallurgy: it is extracted from its ores by conventional roasting and reduction processes that yield a metal of greater than 75% purity. In many stainless steel applications, 75% pure nickel can be used without further purification, depending on .
P. R. , J. J. Kim, and P. B. Crimes, "The Kennecott Process for Molybdenum Production as a By-Product of Copper Operations," presented at the 16th Annual Conference of Metallurgists, August 1977, Vancouver, B.C. Google Scholar
Dissolution of Valuable Metals from Nickel Smelter Slags by Means of High Pressure Oxidative Acid Leaching Ilya Perederiy Degree of Doctor of Philosophy Graduate Department of Chemical Engineering and Applied Chemistry University of Toronto 2011 ABSTRACT In the production of base metals by smelting of sulphide ore concentrates, large amounts
process variables and process outcomes during nickel laterite smelting. Keywords: Computational thermodynamics, Smelting, Laterites, Ferronickel Introduction Nickel is an important metal, with its use as an alloying element in steelmaking dominating all other uses. Most nickel is produced as the commercially pure metal, but
Jun 13, 1997· Evaluation of Substitute Materials for Silica Sand in Abrasive Blasting 1 INTRODUCTION For over 50 years, silica sand has been the traditional media used for abrasive blast cleaning and has become an integral component of surface preparation operations for the removal of paint, rust, mill scale and other debris from steel surfaces prior to
Steelmaking is the process of producing steel from iron ore and/or scrap.In steelmaking, impurities such as nitrogen, silicon, phosphorus, sulfur and excess carbon (most important impurity) are removed from the sourced iron, and alloying elements such as manganese, nickel, chromium, carbon and vanadium are added to produce different grades of steel. ...
437 Nickel Smelting and Refining Wet scrubbimg should be avoided and cooling waters should be recirculated. Storm waters should be collected and used in the process. Process water used to transport granulated slag should be recycled. To the extent possible, all process effluents should be returned to the process. Treatment Technologies
The 32.5 N/mm2 grade cement (325 cement) using slowly cooled blast furnace slag and granulated blast furnace slag, has a tendency of small fluidity change in course of time compared with the 325 ...
Because fine ore particles are readily treated in a DC-arc furnace, units such as fluidized beds (which require materials of small particle size) can be used for the pre-treatment stage of the process. A process has been developed whereby nickel laterites of a wide compositional range can be smelted in a DC-arc furnace, to produce ferronickel.
According to the production process of nickel, nickel slag can be divided into nickel smelting slag and nickel wet smelting slag. Nickel fire smelting slag is a molten slag produced during high-temperature smelting of nickel, which is naturally cooled to form a block or by .
The paper describes a research to evaluate the performance of nickel slag-aggregate high strength concrete (NSA-HSC). Nickel slag, as a by-product from nickel mines, was used as aggregates, either ...
STEP1. The pilled nickel slag was fed by forklift and conveyed by belts. STEP2. In the process of conveying, nickel slag material is de-iron and screened by a separator and vibrating screen, and then trans to vertical mill through weighing equipment and hoist.
As the slag is channeled out of the furnace, water is poured over it. This rapid cooling, often from a temperature of around 2,600 °F (1,430 °C), is the start of the granulating process. This process causes several chemical reactions to take place within the slag, and gives the material its .
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