dolomite waste refractories
Benefits of Dolomite Refractory
Dolomite Refractory Sizes ... The cement kiln is very efficient in waste disposal due to inherent high processing temperatures and long residence time for gases and material. In particular, fluctuations in the operation of the kiln, which often arise when using waste fuel, will ultimately affect the performance life of the kiln refractories. ...
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Review on the elaboration and characterization of ceramics refractories …
Dolomite is also used in the glass; it increases the weather resistance of the glass and prevents devitrification. Dolomite is also used as a flux in the manufacture of steel. Dolomite is harder than limestone; it is an excellent building material and can enter in the manufacture of concrete and reconstituted products [2].
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Recycling Method of Waste Refractory Bricks in …
In this case, Recycling Method of Waste Steel refractory brick In the monthly production of 900t steelmaking waste bricks, there are 250t can not be selected points and can only be abandoned ...
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Preparation and properties of magnesium phosphate …
Waste magnesia refractory bricks (WMRBs) are a high-quality magnesia resource with a MgO content of ＞80%. However, numerous WMRBs are not effectively utilized, leading to the waste of magnesia resources. WMRBs can be transformed into recycled magnesia (RM) with a MgO content of ＞82% by simply crushing and grinding …
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Possible Recycling of End-of-Life Dolomite Refractories …
Dolomite refractories are often used in many steel production plants; in particular, they are used in the con-struction of basic oxide (BOF) and electric arc furnaces (EAF), but also …
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Possible Recycling of End-of-Life Dolomite …
The feasibility of using dolomite powders, by-product from the refractory industry, as a CO2 adsorbent and as a catalyst for the acetone liquid-phase self-condensation is demonstrated in this...
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Manufacturing and Properties of Refractories | SpringerLink
Dolomite refractory is made out of naturally occurring dolomite which is a solid solution of MgCO 3 and CaCO 3. The pure grade of dolomite is calcined at very high temperature to reduce its affinity to react with atmospheric moisture and to make it stable. The dead burnt dolomite is the basic raw material for manufacturing the dolomite ...
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RHI Magnesita's York, Pennsylvania refractory dolomite …
RHI Magnesita, the leading global supplier of refractory products, systems and solutions, recently announced that an innovative, new two stage crushing system has been installed at their main United States industrial site in York, Pennsylvania which mines dolomite for the production of refractory materials. The custom-designed, two-stage …
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Hydration resistance and mechano-physical properties …
Lately, magnesia-dolomite refractories have been considered chrome-free refractories that might substitute magnesia–spinel and magnesia–chromite lining bricks for the cement industry with benefits to human health and the environment. However, their use is limited due to their low hydration resistance. In the present work, the hercynite's ...
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Multi-impregnating pitch-bonded Egyptian dolomite refractory …
A method of preparation of multi-impregnated pitch-bonded Egyptian dolomite refractory brick for ladle furnace is described. Brick samples were prepared from blend of calcined dolomite mineral and coal tar pitch. The blend was hot mixed and pressed under a compression force up to 151 MPa. Green bricks were baked for 2 h at …
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Refractory Dolomite Raw Materials
Greater use of our dolomite materials in a variety of refractory processes could reduce our dependence on imported FeCr 2 O 4 and more expensive seawater periclase. A review …
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Recycling of refractory bricks used in basic steelmaking: A …
DOI: 10.1016/J.RNREC.2018.09.025 Corpus ID: 115840866; Recycling of refractory bricks used in basic steelmaking: A review @article{Horckmans2019RecyclingOR, title={Recycling of refractory bricks used in basic steelmaking: A review}, author={Liesbeth Horckmans and Peter Nielsen and Philippe …
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Chemical composition of dolomite | Download Table
The feasibility of using dolomite powders, by-product from the refractory industry, as a CO2 adsorbent and as a catalyst for the acetone liquid-phase self-condensation is demonstrated in this article.
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Stabilized Dolomite Refractories
STABILIZED DOLOMITE REFRACTORIES G. I. Antonov, 1V. P. Nedosvitii, A. S. Kulik, and O. M. Semenenko Translated from Novye Ogneupory, No. 2, pp. 8 – 13, February, 2004. A technology of environment-friendly refractories based on briquetted dry-ground dolomite, magnesia-sili- ... Enriched chrome ore waste 19.7 30.1 – – 4.44 36.8 7.17 – ...
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MgO-C Refractories: A Detailed Review of These …
ing, since these refractories cannot be fired like most conventional refractories. 2.1 Magnesia Magnesia, the main component of MgO-C refractories (80–90 mass-%), plays a decisive role in their property development and per-formance. Three different types of magnesia are used for magnesia–carbon refractories [1] [14]: 1.
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Dolomite thermal behaviour: A short review | Physics and
Due to its refractory use par excellence, talking about dolomite implies referring almost univocally to the metallurgical industry. The linings of steel furnaces in the primary stage make use of bricks or magnesia monoliths, which have displaced dolomite []; the secondary steel stage makes use of dolomite, adding the coatings of cement kilns, …
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Waste Classification of Spent Refractory …
The recycling of used refractory materials in the heavy industry constitutes one of the significant environmental problems in the industry related to environmental and financial issues. This study …
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Recycling Method of Waste Refractory Bricks in …
Recycling Method of Waste Steel refractory brick In the monthly production of 900t steelmaking waste bricks, there are 250t can not be selected points and can only be abandoned; there 650t can ...
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Life cycle assessment of refractory waste management in …
Refractory waste management options assessed include reuse, recycling and landfilling. ... chromite, dolomite, magnesite, silicon carbide, and zirconia (Refractories Institute 2019). According to Roberts (2015), global production of refractories amounted to 36.9 million tonnes in 2014, with China alone accounting for …
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Review on the elaboration and characterization of ceramics refractories
One of the most important elements of furnaces, boilers and other heating units is the structure (lining), usually made of silica–alumina, basic or special refractories.
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Limestone and Dolomite and their Use in Iron and Steel Plant
Lime is used to neutralize the acidic waste pickle liquor in which iron salts are also precipitated. After pickling, steel products are frequently given a lime bath to neutralize the last traces of the pickling acid adhering to the steel surface. ... for protection of refractory lining, and (iii) as a refractory raw material. Dolomite in iron ...
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Refractories Recycling refractories
Dead burned dolomite 56-62% MgO, 36-40% CaO USA Chromite >46% Cr 2 O 3 South Africa Sintered/fused spinel 66-80% Al 2 O 3, 21-33% MgO China Olivine 40-50% MgO, 34-45% SiO 2 ... refractory waste and refractory SRM. r IMFORMED is organising the Mineral Recycling Forum 2016, 14-15 March 2016, Rotterdam focusing on the SRM ...
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TRL Krosaki: The Undisputed Leader in Dolomite Refractories …
When it comes to dolomite refractory plants in India, TRL Krosaki Refractories Limited stands out as the undisputed champion. Located in Belpahar, Odisha, their state-of-the-art facility is the ...
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Recent advances in the application of dolomite in membrane …
Dolomite-based refractories exhibit high refractoriness, high alkaline corrosion resistance, good hot strength, and cost-effectiveness [99, 100]. They are mainly used in the linings …
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Magnesia‐carbon refractories from recycled materials
Considering the high concentration of MgO and C contained in spent MgO-C refractories and dolomite fines (derived from rotary kilns), one good alternative consists of recycling those materials as ...
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A Brief History of Refractories
Refractories are used in countless industries, from iron and steel to energy and glass. Manufacturing in its current form could not exist if not for the technological advancements in refractory materials since the Industrial Revolution. A Simple Start Because of their chemical composition and reactions, refractories are fairly complex. …
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Benefits of Dolomite Refractory
A high degree of refractoriness allows the dolomite brick to withstand the temperatures and stresses involved in the burning zone, the corrosion resistance to …
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Multi-impregnating pitch-bonded Egyptian dolomite refractory …
Semantic Scholar extracted view of "Multi-impregnating pitch-bonded Egyptian dolomite refractory brick for application in ladle furnaces" by M. Rabah et al. ... High-strength low-cement castables have been produced for the first time from waste of demolished glass furnaces. Adispersant of long-chain ionizable sodium tripolyphosphate (STPP, 0.2 ...
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Argon-Oxygen Decarburization (AOD) | Magnesia Chrome
Argon-Oxygen Decarburization (AOD) is the most dominant process for the generation of stainless, low-alloy, and superalloy steels. R Products has been and is involved in this application with its ability to supply both dolomitic as well as magnesite chrome refractory products.The AOD process became very popular because it created a more economical …
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Stabilized Dolomite Refractories
A technology of environment-friendly refractories based on briquetted dry-ground dolomite, magnesia-sili- cate raw materials, and stabilizing additives has been …
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