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After her technical chemistry degree at the Graz University of Technology with focus on process engineering she did her PhD in synthetic biofuels. Her experience in metallurgical and energy recovery topics she got during developing a new process line for primary converter dedusting, including a heat recovery unit and a filter unit.
Metallurgical Direct reduction iron Waste to Value Gasification POX Sludge ... By optimum integration of process gas cooling and waste heat recovery the SCHMIDT''SCHE ® Process Gas Boilers and Heat Recovery Systems ensure the reliability of your plant coming along with an economic and efficient operation. Products. Process Gas Boiler.
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 a hydrometallurgical method. It was found that the addition of CH3COONH4 to a NH3–H2O system promotes zinc ...
Sep 05, 1978· It is an object of this invention to provide a method and apparatus for efficiently recovering heat from slag from a metallurgical process by effectively collecting the sensible heat of the slag as heat contained within steam or some other hightemperature fluid or gas through radiant heat absorbing tubes for heat absorption and recovery.
article{osti_, title = {Heat recovery in dry granulation of molten blast furnace slag}, author = {Tetsuro, N. and Hiroshi, N. and Koichi, F. and Tsukio, I.}, abstractNote = {In a research and development project undertaken jointly between IshikawajimaHarima Heavy Industries Co. and Sumitomo Metal Industries, Ltd., a process has been ...
The efficiency of the recovery phase depends on both temperature conditions and the composition slag, and introduced additions. The exploration of the possibility and feasibility of the liquidphase restoration for steelmaking waste slag of the Zlatoust Metallurgical Plant applying the induction heat installation is the aim of this study.
Better troubleshooting capabilities for metallurgical process problems or deficiencies. More accurate determination of process efficiency and recovery rates. More informed flowsheet design and modification. Improved information flow to management. Increase in .
In addition to slag recovery, the liquid furnace slag and ladle slags are generally processed to recover the ferrous metals. ... which is highly dependent on the rate of slag cooling in the steelmaking process. Table 182. Typical steel slag chemical composition. ... Due to their high heat capacity, steel slag aggregates have been observed to ...
When the molten slag is rapidly cooled by water, a large amount of granulated and amorphous blast furnace slag is produced, and the physical and chemical properties of these slags mainly depend on the production process. It is worth noting that a lot of water and heat are wasted in this process.
Apr 01, 1987· 1. A process for the recovery of volatile metal values from metallurgical slags, characterized by comprising flowing a stream of molten metallurgical slag through a furnace, optionally feeding a reducing agent into said slag stream, impinging on the surface of the slag stream the heat from at least one plasma torch, removing from above the slag a gas containing metal vapours, and .
Waste Heat Recovery from HighTemperature Blast Furnace Slag Particles Junxiang Liu1,2, Qingbo Yu1*, Jiayan Peng1 and Wenjun Duan1 . 1. School of Metallurgy, Northeastern University, Shenyang, Liaoning, 110819, P R China . 2. State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming 650093, P R China
Metallurgical slags, discharged at high temperature range, are produced as byproducts in metallurgical processes. In order to reuse waste energy in molten metallurgical slags, the dry granulation and waste heat recovery technology is a popular technology, compared to water quenching granulation.
For BOF slag treatment, above mentioned pyrolytic selfslaking, HK, and BSSF processes are being accepted. No process considered the heat recovery from molten slag during granulation processes. Large scale application of stabilised steel slag powder in construction is a good way for steel slag .
The difficulties of molten metallurgical slag heat recovery caused by low thermal conductivity and high enthalpy are granulation is an environmentfriendly process in treating ...
Pyrometallurgy is a branch of extractive consists of the thermal treatment of minerals and metallurgical ores and concentrates to bring about physical and chemical transformations in the materials to enable recovery of valuable metals. Pyrometallurgical treatment may produce products able to be sold such as pure metals, or intermediate compounds or alloys, suitable as feed for ...
Fig 1 Characteristics of lime for use in converter . Lime and steelmaking slag. Lime is critical to steelmaking. Near the start of the blow calcined lime and calcined dolomite are added, although sometimes these are added gradually throughout the heat.
Heat Recovery from Slag through Dry Granulation ... the technique that the waste heat of metallurgical slag particles is directly recovered by gravity bed waste heat boiler to produce steam was ...
Economics of Slag Heat Recovery from Ferronickel Slags. Hatch supplies engineering, project and construction management services, process and business consulting and operational services to the mining, metallurgical, Economics of Slag Heat Recovery from Ferronickel Slags. Contact Supplier; Feasibility of recovering metals from associated slags
Process Metallurgy Module for Steel and Slag The Process Metallurgy Module is a calculator within ThermoCalc that makes it easy to set up calculations for steel and slag. The module is primarily designed for application to steelmaking and steel refining processes including converters, such as basic oxygen furnaces, electric arc furnaces ...
Dry granulation and heat recovery from metallurgical slags. Plenary Lecture. ... Internal slag recycling and other solid wastes utilisation in metallurgical process ; Slag engineering to optimise metallurgical process ( protect lining brick from degradation,.) Slag formation, slag ing, slag minimisation in the process ...
This article relates to the analysis of formation and the metal content of slag, generalised data from enterprises on yield and treatment of slags. Test results of the metal content determination in slag dumps, slag granulometric composition, its physical and chemical properties, as well as results of experimental investigation of metal recovery process from slags are presented. Dependences of ...
USA USA USA US A US A US A US A US A US A US A US A US A Authority US United States Prior art keywords slag furnace cupola slags metallic Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
The granulation and heat recovery technologies towards molten slag of steel industry are reviewed. The working principle, research status, challenges and prospects of these technologies are analyzed. Centrifugal granulation combined with chemical heat recovery .
Crystallization of Blast Furnace Slags Pertaining to Heat Recovery Shaghayegh Esfahani Doctorate Materials Science and Engineering University of Toronto 2016 Abstract Heat recovery from blast furnace slags is often contradicted by another requirement, to generate amorphous slag .
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