A novel process for preparing Fe–Cr-Ni-C alloy: synergetic
In order to improve the recovery ratio of valuable metals in stainless steel dust, reduce environmental pollution, and promote solid waste resource recovery and sustainable development of industry, the synergistic reduction process for preparing Fe–Cr-Ni-C alloy was studied in detail by changing the addition of laterite nickel ore and reduction process …
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Pellet strength in relation to induration time and dust …
Reducibility studies of dust and pellets from nickel oxide ores have shown that final degree of reduction (R%) in a rotary kiln is achieved within a few minutes, so that retention time of the feed ...
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A study on the zinc removal kinetics and mechanism of zinc-bearing dust
The XRD, optical microscope and SEM/EDS analyses of the dry zinc-bearing dust pellets were carried out to illustrate the compositions of phases and the occurrence form of elements in the dry pellets. Phase compositions of the dry zinc-bearing dust pellets were determined by X-ray diffraction (XRD) analysis and the results are shown in Fig. 5 .
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How to Convert Nickel Oxide to Nickel Metal
Sponge nickel can be produced by gaseous or solid-fuel reduction or a combination of both. Although pelletized nickel oxide was reduced in a laboratory rotary furnace, about 40 percent of the pellets abraded; magnetic separation was required to remove the fine sponge nickel from the charred coal and dolomite; hence, rotary-kiln operations were not …
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Microsoft Word
Nickel powder or dust will support combustion and may form explosive mixtures in air. In a fire, nickel may form nickel carbonyl, a highly toxic substance and known carcinogen. Do not use water on molten metal: Explosion hazard could result. Suitable extinguishing media Special powder against metal fires. Dry sand. Water spray, fog or mist.
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Carbothermal Reduction of Stainless Steel Dust and …
dust and laterite nickel ore. The ratio of stainless steel dust to laterite nickel ore is 94%: 6%, the reduction temperature is 1 400°C, the reduction time is 20 min, and the FC/O is 0.8, the metal and slag of the reduced product can be naturally separated after cooling; The recoveries of Fe, Cr and Ni were 90.6%, 90.1% and 91.2% respectively. The
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Novel Ni/SBA-15 Catalyst Pellets for Tar Catalytic …
SBA-15 mesoporous silica for the dry ref orming of methane, as a model reaction for cata- lytic tar reforming. As a result of th eir high surface area, ultrafine nickel particles strongly
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A novel approach to improve the energy and cost efficiency …
A balance has to be kept between decreasing costs for drying and pelletization and pellet quality. A higher feedstock water content can save energy costs, but also decreases the pellet quality in terms of heating value [21], combustion emissions [22], durability [23], and increased transport costs [21], [24].The recommended limits for heating value and durability of …
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Pelletizing Lends a Hand in Recovering Nickel Dust
Nickel-laden dust and fines are generated throughout the nickel laterite mining and processing lifecycle: See more
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Processing EAF dusts and other nickel-chromium waste …
the dust is collected, stored and transported under carefully controlled conditions, the dust is uniform and free from foreign objects. The flue dust handling system is entirely enclosed to contain the dry dust and to prevent it from escaping and becoming an environmental problem.
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Effect of CaSO 4 pelletisation conditions on pellet strength …
Reduction of calcium sulphate with hydrogen Figure 7a shows the effect of the nickel catalyst added by the spraying method on the hydrogen reduction of CaSO4 pellets. About 60% of nickel catalysed CaSO4 Table 3 Pore blocking constant, apparent rate constant and intrinsic rate constant values v. temperature obtained from reaction of CaS pellets ...
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Concentrate Drying at Falconbridge Nickel Mines Ltd.
"Smelter Feed Preparation Falconbridge Nickel Mines Limited, Sudbury Operations, operate 4 mills and a smelter to produce Bessemer Ni-Cu matte for refining in Norway. Approximately 1400 tons of Ni-Cu concentrate are produced daily which are dried from a filter cake containing 14% moisture to 7.5% moisture pellets. Concentrate drying is done by 4 rotary dryers as shown in …
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Kinetic Model Research on Drying Characteristics of …
In 2021, China's steel production has reached about 1.033 billion t. Generally, the amount of dust produced by iron and steel enterprises is about 8%–12% of steel production, and the amount of dust produced by China's iron and steel enterprises in 2021 is about 84–126 million t. 1,2,3) Rotary hearth furnace direct reduction is the most commonly used method to deal with …
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Safety Data Sheet Nickel
Nickel. SECTION 1: Identification. 1.1. Product identifier. Product name. Nickel. 1.2. ... if user activities generate dust, fumes or mists during processing and handling (melting, welding, sawing, brazing, grinding and machining), it may become ... May cause an allergic skin reaction . H319. Causes serious eye irritation. H334.
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Facile Preparation of Egg-Shell-Type Pellet Catalysts Using
We herein prepared egg-shell-type pellet catalysts using tube-shaped MgAl2O4 pellets as a support for effective utilization of the catalytically active component (nickel) by selectively localizing ...
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(PDF) Recycling Dust in Nickel Metallurgy
In this work the pelletizing plant for recycling dust from laterite prereduction in rotary kilns (R/K) is studied and the critical paths are identified …
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A study on the zinc removal kinetics and mechanism of zinc-bearing dust
The mechanism of zinc removal from the pellets was analyzed by optical microscope, scanning electron microscope, energy dispersive spectrometer, X-ray diffraction and thermodynamic calculation. It was found that the zinc element in the zinc-bearing dust pellets presented in the form of zinc ferrite, hardystonite and zinc chloride. The process ...
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Sawdust drying process in a large-scale pellets facility: An energy …
Concerning this specific energy source, an attractive option is the use of by-products to produce pellets. As a densified form of biomass, pellets are characterized by their reduced moisture content (below 10%, dry basis to be certified under EN14961:2010 European certification standard) and higher calorific value when compared with biomass in general.
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Pellet strength in relation to induration time and dust …
Reducibility studies of dust and pellets from nickel oxide ores have shown that final degree of reduction (R%) in a rotary kiln is achieved within a few minutes, so that retention time of the...
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NICKEL METAL SAFETY DATA SHEET
Solid nickel does not burn but nickel dust may form explosive mixtures if dispersed in air as a fine powder. Nickel is well recognized as a skin sensitizer and studies suggest a 2.5 – 5% …
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ICSC 0062
Flammable as dust. Gives off irritating or toxic fumes (or gases) in a fire. Finely dispersed particles form explosive mixtures in air. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. Use dry sand, dry powder. NO carbon dioxide. NO water.
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Kinetic Model Research on Drying Characteristics of …
In this study, the effects on the drying rate of raw metallurgical dusts pellet at a hot air flow rate of 1 m/s and drying temperatures of 211°C, 254°C, 282°C and 314°C was investigated to ...
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(PDF) Nickel Laterite Smelting Processes and Some
pyrometallurgically (ferro-nickel and ferro-nickel with low-Nickel content), hydrometallur gically (pressure acid leaching), or both (Caron process). Historically, the smelting of laterites is as ...
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Nickel
Nickel Product Information Nickel; massive forms Synonyms (# - Manufacturing location): Vale Inco FSC 1 ValeInco Strip 1 Vale Inco Pellets 2,3 Vale Inco Flats 2,3 Vale Inco 1X1 1 Vale Inco 4X4 1 Vale Inco S-Pellets 3 Vale Inco Chips 2,3 Vale Inco OSC 1 Vale Inco R-Rounds 1 Vale Inco P-Pellets 2,3 Vale Inco 4,5 Vale Inco S-Rounds 1 Vale Inco Discs 2,3 Vale Inco Plating …
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Safety Data Sheet
Product No. 29-28, 61-314, 91116, 91216, 91578, 9560 Nickel Products, Nickel Pellets, Nickel Powder and Nickel Targets Issue Date (11-20-15) Review Date (08-31-17) Section 1: Product and Company Identification Product Name: Nickel Products, Nickel Pellets, Nickel Powder and Nickel Targets Synonym: NA Company Name
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S Nickel Pellets
to conclude that nickel metal is classified as a respiratory sensitizer. b) Skin: Nickel metal is a well-known skin sensitizer. Direct and prolonged skin contact with metallic nickel may induce nickel allergy and elicit nickel allergic skin reactions in those people already sensitized to nickel, so called nickel allergic contact dermatitis.
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Dryer's drying up for pellet production
Dust collected after the pelletization process and during the bagging process can be recycled in the drying system. In an integrated biomass campus, waste products from other …
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Carbothermic Kinetics and Reaction Mechanism of Carbon …
Stainless steel dust is a type of high basicity iron containing solid waste from the iron and steel smelting industry. In this study, the carbon-containing composite briquettes were prepared by ...
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Wood Pellet Emissions
Drying temperature can strongly affect the emission of VOCs along with pellet self-heating. For instance, one of the major emitted VOCs released during pellet drying process are Aldehydes that drying gas tempera-ture is considered as the main rolling factor in generating them. In order to maintain high throughput, high drying temperatures are ...
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Multiobjective collaborative optimization of novel …
By using the central composite design based on the response surface method, the multiobjective collaborative optimization of Fe, Cr and Ni metal recovery from stainless steel dust and laterite nickel ore was achieved through carbothermal reduction, and a high metal recovery rate and high-grade Fe-Cr-Ni-C alloy particles were obtained.
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