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Tuesday, November 17, 2020 | History

2 edition of Use of Flame Procedures For the Analysis of Minerals, Ores, and Electric Furnace Slags, Part 1 found in the catalog.

Use of Flame Procedures For the Analysis of Minerals, Ores, and Electric Furnace Slags, Part 1

Canada. Dept. of Energy, Mines and Resources. Mines Branch.

Use of Flame Procedures For the Analysis of Minerals, Ores, and Electric Furnace Slags, Part 1

Sample Dissolution and Atomic Absorption Procedures For Use in the Determination of Silicon : A Review.

by Canada. Dept. of Energy, Mines and Resources. Mines Branch.

  • 233 Want to read
  • 21 Currently reading

Published by s.n in S.l .
Written in English


Edition Notes

1

SeriesTechnical bulletin (Canada. Mines Branch) -- 149
ContributionsGuest, R.J.
ID Numbers
Open LibraryOL21893388M

A metallurgical assay is a compositional analysis of an ore, metal, or alloy.. Some assay methods are suitable for raw materials; others are more appropriate for finished goods. Raw precious metals are assayed by an assay is assayed by titration, gold by cupellation and platinum by inductively coupled plasma optical emission spectrometry (ICP OES). 1. Valuation of mining property. 2. Basis for buying or selling ores and metallurgical products. 3. Guide to prospecting and development of ore bodies. 4. Delimitation of boundaries of marginal ore. 5. Check against waste dilution in mining operations. 6. Control of average grade of ore mined and milled. 7. Investigation and control of. In some specific flame fired processes such as a coal power boiler, fine particles known as fly ash are suspended in the air within the boiler or furnace. Monitoring the temperature of these particles can be achieved by monitoring the temperature of the flame as these particles will be the same temperature and is actually a representation of.


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Use of Flame Procedures For the Analysis of Minerals, Ores, and Electric Furnace Slags, Part 1 by Canada. Dept. of Energy, Mines and Resources. Mines Branch. Download PDF EPUB FB2

Several elements, including silicon, in blast furnace slags and sinters, and/or in iron ores and slags, subsequent to dissolution in acid or to fusion techniques, not detailed.

The procedures, reported here, were applied primarily to materials high in iron and titanium or in iron-manganese materials. Ferroboron is processed in electric furnaces by reduction of either aluminum or carbon. For the aluminum reduction process, the main part of the charge is composed of borate ore (see Table ) and secondary aluminum -termite mix (exothermic mixture) has secondary iron oxides and aluminum chips, and the ignition mix consists of all three components (calcined borate ore, iron oxides.

Slag is an essential part of the blast furnace process. It absorbs gangue minerals present in the iron ore, and ash in coke/injected fuels, and impurity elements such as S and alkaline elements (K, Na) present in the burden. The slag must be fluid under all blast furnace operating conditions.

Slags 91 Antimony Ore 92 Borax Ore 93 Chrome Ore 93 Gold Ore 94 Iron Ore 95 Rutile and Zircon Ores 96 Flame Atomic Absorption Spectrometry Analytical Methods 11 1. Recommended Instrument Parameters 15 General References 16 General This book is intended as a guide to analysts in the selection of techniques and instrument settings for.

In Norwegian law the word "malm" for ore is defined as a mineral containing metals subjected to exploitation with a density $ 5 g/cm3. In Norwegian the word "ert s" is deriv ed f rom the German w ord " Erz" meaning t he ore mineral w it hout the demand it being economical.

The English word "ore" is derived from Greek "aurum" for gold (chemical File Size: 46KB. The flame test is used to visually determine the identity of an unknown metalor metalloid ion based on the characteristic color the salt turns the flame of a Bunsen burner.

The heat of the flame excites the electronsof the metals ions, causing them to emit visible light. Manganese ferroalloys consist of various grades of ferromanganese and silicomanganese.

High-carbon ferromanganese, generally with 70–80% Mn and 6–7% C, is by far the largest tonnage ferroalloy used. It is a deoxidizing agent in steelmaking and an important alloying element. Densities of fayalite slags containing alumina lay between ×10³ kg/m³ and ×10³ kg/m³ and surface tensions of the slags were found in the range of N/m⁻¹ at K.

Complex, scientific test which is conducted to identify a mineral. A small fragment of a mineral is placed on the end of a platinum wire and held in a flame.

Different metals present within a mineral will change the color of the flame. Examples are sodium,yellow; copper,blue/green; potassium,violet. Miners use the test for analysis of samples, particularly when prospecting. Flame tests provide a good teaching tool for chemistry students learning about emission spectra.

Unlike more sophisticated spectrographic equipment, a flame test requires only a gas burner, a hydrochloric acid solution and nichrome wire to hold the sample. A method for Spectrographic analysis of slags, ores, refractories and other simple or complex oxides is given, which possesses the following advantages: (1) It is much faster and at least as reliable as the chemical method for the same analysis.

(2) The estimations are not influenced by the chemical nature of the by: WDXRF Use of Flame Procedures For the Analysis of Minerals SPARK - OES analysis of foundry iron and furnace slags it is evident that between blast furnace and electric conv erter slags this forms part of research works on the use of.

from the molecules in the fuel. This is called Flame Ionization and it lets the flame act as a path for electric current. The flame has high resistance and act as a load when a furnace provides voltage and a ground to complete the circuit.

Conduction can be used to close a circuit for proof of flame. Flame File Size: KB. Flame sensors, whether they are used in a home furnace or on a large industrial boiler, indicate the presence of a flame and are part of the safety circuit. If the flames go out and the furnace or boiler continue to feed the unit with fuel, a catastrophic explosion could occur.

This book provides a current snapshot of characterization in materials science and its role in validating, informing, and driving current theories in the field of materials science.

This proceedings volume will serve the dual purpose of furnishing a broad introduction of the field to novices while simultaneously serving to keep subject matter. silver and the PGM analysis of ores and concentrates. Its basic principles were exhibited in the Agricola’s book named ‘De Re Metallica’ in and it was reported that the technique is in use since the years B.C.

[1, 2]. In the method, ore is firstly ground and mixed with a charge which consists of NaCO. 3, Na. O File Size: KB. Submerged arc electric furnace smelting using the manganese-rich slag method is widely used to produce ferromanganese.

This process has been modelled using the HSC computational thermodynamics. • Furnace operation with one of the tuyeres in plugged condition most of the time which leads to improper gas flow & lower productivity Solution: Due to use of low grade local ore, slag load on the furnace has increased, innovations was required to handle the extra load of slag.

The main hardware components are a central data acquisition system for collecting flame scanner signal output and a computer for signal processing and display, Figure 1.

Usually it is possible to. Metallurgy, art and science of extracting metals from their ores and modifying the metals for use.

Metallurgy customarily refers to commercial as opposed to laboratory methods. It also concerns the chemical, physical, and atomic properties and structures of metals and the principles whereby metals are combined to form alloys.

For electric-furnace slags, and flue dust a sodium peroxide fusion may be used. Sodium Peroxide Fusion. Fusion of up to grams of sample with 10 grams of sodium peroxide (mix well).

Use a Ni crucible and fuse for 5 to 10 minutes at a dull red heat over a small flame. Exercise caution if organic material is present by performing a dry ash first.

Nickel is mostly used in alloys, for example in stainless steel, aerospace alloys and specialty steel. Cobalt is the key ingredient in rechargeable batteries. Platinum group of metals is largely used in the automobile industry. The purpose of this book is to describe how these metals are produced from the ores that are mined.

10 Flame Atomic Absorption Spectrometry Analytical Methods Reagents and Apparatus The purity of reagents may determine the accuracy of the analysis and all reagents should therefore be of the highest purity available.

Prior to any analysis all reagents and equipment should first be checked for the element of interest by carrying out a blankFile Size: KB. STANDARD OPERATING PROCEDURE: High Temperature Box Furnace Oregon State University, Department of ChemistryStandard Operating Procedure (SOP): Safe Use of High Temperature Box Furnaces (ver.

)Author: Mas Subramanian ([email protected])Safety Web Inception Date: 3/01/Revised: N/A Chemistry Department Safety Office: Gilbert Hall Room Emergency. The flux is a mixture of several reagent chemical such as borax, silica, sodium nitrate, sodium carbonate and fluorspar.

Borax is a white crystalline mineral used in glass and ceramic enamel mixes. In the smelting process, borax helps to reduce the gold smelting point. Viscosity decreases with basicity for high alumina blast furnace slags with increase in basicity and CaF 2.

At higher basicity (~), slag viscosity decreases even with small amount of TiO 2 (~2%) addition in the slag. With increase in silica activity in the range of to ,viscosity of slag increases and the increase is steeper below liquidus.

Flame sensing rods stick out into the flame and connect back to the furnace board. Once the board sends a call to the gas valve to open, it monitors the current flow on the flame sensing rod.

It does this by generating a potential (voltage) at the flame sensing terminal, this terminal is connected to the sensor with a conductor.

Minerals, Ores, and Fossil Fuels. SC STUDY. PLAY. Minerals. Natural, solid materials found on Earth, building blocks of rocks. Rocks. mixture of 2 or more minerals.

Minerals: Holt Science and Technology- Inside the Restless Earth Ch 1. 47 terms. Minerals by Manni. OTHER SETS BY THIS CREATOR. 2 terms. Light. 2 terms. test. 5 terms. Forging furnace2 The forging furnace is used for preheating billets and ingots to attain a ‘forge’ temperature.

The furnace temperature is maintained at around to oC. Forging furnaces use an open fireplace system and most of the heat is transmitted by radiation. The typical load is 5 to 6 tonFile Size: 1MB. Electric arc furnace (EAF) dust, together with a mill scale and coke were smelted in a laboratory electric arc furnace.

These metallurgical wastes consist of a many different phases and elements, making the reaction process complex. Thermo-chemical analysis.

METALLOTHERMIC REDUCTION OF MANGANESE-BEARING SLAGS reduction of ore in a submerged arc electric furnace, is itself a ratio of CaO/SiO2 in these slags. A kinetic analysis. Four types of steel slags, a ladle slag, a BOF (basic oxygen furnace) slag and two different EAF (electric arc furnace) slags, were characterized and modified by semi-rapid cooling in crucibles Author: Qixing Yang.

primarily silica and alumina from the original iron ore, with calcium and magnesium oxides from the added flux (1). Fluxing agents are also used in the BOF and EAF processes, and thus the chemical composition of slag from these processes is similar to BF slag. However, the iron and manganese contents ofBOF and EAF slags are substantially higher File Size: 1MB.

Gravimetric analysis, a method of quantitative chemical analysis in which the constituent sought is converted into a substance (of known composition) that can be separated from the sample and weighed. The steps commonly followed in gravimetric analysis are (1) preparation of a solution containing a.

Bushell, A new SEM-EDS based automated mineral analysis solution for PGM-bearing ores and flotation products, Minerals Engineering, Vol. 24, No. 12, P.P. Sun, M.S. Lee, Separation of Pt(IV) and Pd(II) from the loaded Alamine by stripping, Hydrometallurgy, Vol.

No.Flame rectification in a gas furnace is a method of proving flame exists by using electronics. When alternating current is supplied to a probe that is within a flame the flame will rectify the current from alternating current to direct current.

To the left is a flame rod. It extends into the flame to sense it. The flame is smaller and more compact and usually is ° to °F hotter than with non-flame retention heads. The flame retention head incorporates three basic elements. We will refer to these as (1) center opening, (2) primary slots and (3) secondary opening.

Industrial flames are generally turbulent in nature, and, for convenience and safety reasons, involve diffusion flames where the fuel and air are injected separately for safety reasons and the development of the length of the diffusion flame after the burner exit occurs with increased gas flow velocity as shown in Figure 1.

With increasing gas. Poveromo is a well-known figure for his impact on ironmaking and ironmaking and steelmaking raw materials including blast furnace burden and gas distribution, development of fluxed iron ore pellets, utilization of iron ore concentrates in sintering, evaluating the impact of coal and coke properties on ironmaking processes, improvement of direct.

Extraction of Iron using blast furnace and various types of Steel: Iron ore is reduced to iron by heating them with coke (a form of carbon) in blast furnace. As mentioned earlier, common iron ores are hematite (Fe2O3) and magnetite (Fe3O4). The air blown into the bottom of the blast furnace is heated using the hot waste gases from the top.

Copper Losses in Slags Magnitude of the Copper-loss Problem Copper Losses in Smelting Furnace Slags Treatment of Flash-furnace Slags Treatment of Converter Slags Summary of Chapter Suggested Reading and References 11 Continuous Production of Blister Copper: Single-step and Multistep Processes Single-step ProcessesBook Edition: 2.If we also know the properties on the incoming combustion air it is then possible to calculate the flame temperature.

Once this data is identified the CPGASH56 Program can be used to calculate the flame temperature. Example #1 - Flame Temperature Calculation Procedure This Example Involves a Low Efficiency Induced Natural Gas Furnace 1.Flame Vs Furnace Tests.

The truth about BS and flame vs furnace tests! The duration and the maximum temperature of a fire in a building depends on several factors including the amount and configuration of available combustibles (including all electric cables), ventilation conditions, properties of the internal enclosures, weather conditions, etc.