recycling of magnesia carbon refractory

Reducing energy consumption and carbon emissions of ,

Reducing energy consumption and carbon emissions of ,

Feb 20, 2018· @article{osti_1435522, title = {Reducing energy consumption and carbon emissions of magnesia refractory products: A life-cycle perspective}, author = {An, Jing and Li, Yingnan and Middleton, Richard S}, abstractNote = {China is the largest producer of magnesia refractory materials and products in the world, resulting in significant energy consumption and carbon emissions

KR20150122448A - Apparatus and method for recycling for ,

KR20150122448A - Apparatus and method for recycling for ,

The present invention relates to an apparatus and a method for recycling magnesia-carbon refractori The apparatus for recycling magnesia-carbon refractories comprises: a central main-pipe housing (10) for supplying a heat source and air; an air suction pipe (60) for sucking air; and a recycling housing (50) in which waste magnesia-carbon refractories exist

Recycled refractory portfolio and services across Europe ,

Recycled refractory portfolio and services across Europe ,

Feb 01, 2016· The Future for recycling Recycling is becoming a big topic for the refractory industry There is a continued push to become more sustainable while finding cost savings The drive for recycling is going to be discussed at the upcoming Mineral Recycling Forum in Rotterdam in March Here we will be present and presenting our paper

Magnesia Products - Refractory Recycling

Magnesia Products - Refractory Recycling

We can offer a range of magnesia based recycled products, some with carbon addition Sorted products are supplied loose in bulk tippers, crushed & screened product in big bags (5-8mm, 3-5mm, 1-3mm, 0-1mm) MgO Al2O3 SiO2 Fe2O3 CaO Cr2O3 LOI Magnesia Spinel 85 868 82 20 06 14 30 Magnesia 90 923 08 20 11Continue reading →

(PDF) Chemical corrosion of magnesia-chromite refractory ,

(PDF) Chemical corrosion of magnesia-chromite refractory ,

Cylindrical refractory samples were cut from a commercially available "direct-bonded" magnesia-chromite refractory (diameter = 15 mm; length = 50mm) The chemical composition and physical properties of the investigated magnesia-chromite specimen are given in Table 2

Recycled magnesia-carbon aggregate as the component of new ,

Recycled magnesia-carbon aggregate as the component of new ,

Feb 22, 2021· Moreover, the recycling of MgO-C refractories will support sustainable development and the closed circle economy as both magnesia and graphite belong to strategic refractory raw materials There are several examples of implementation of recycled aggregate in the composition of fire-resistant and refractory shaped and unshaped materials

SPECIFICATION OF MgO−CONCENTRATE OBTAINED ,

SPECIFICATION OF MgO−CONCENTRATE OBTAINED ,

Keywords: Refractory, Periclase–carbon, Material Recycling The recycling process of post mortem MgO–C (MC) materials is based on carbon removal from the crushed material The laboratory results of the annealing of the crushed post–mortem MC bricks in a static layer, in an air atmosphere in an electric furnace are presented

Reducing energy consumption and carbon emissions of ,

Reducing energy consumption and carbon emissions of ,

May 01, 2018· Magnesia-carbon bricks have excellent performance in terms of resistance to erosion and to stripping, and thus they are one of the most widely used refractory products For instance, magnesia-carbon brick is a very common material for converter lining, ladle lining, and slag lining in ,

EXPANDED GRAPHITE FORTIFIED MAGNESIA-CARBON ,

EXPANDED GRAPHITE FORTIFIED MAGNESIA-CARBON ,

14 Application of MgO-C refractory 7 Chapter 2 Literature Review & Objective of the Present Work 10-24 21 Historical perspectives of MgO-C refractory 11 22 Recent advances in MgO-C refractory 12 23 Raw materials for MgO-C refractory 13 231 Magnesia 14

How to Recycle Used Refractory Bricks? | Western Coast

How to Recycle Used Refractory Bricks? | Western Coast

Nov 15, 2019· Recycle and re-use Waste refractory bricks are divided into: waste magnesia-aluminum spinel bricks, waste magnesia bricks, waste insulating brick, waste magnesia-chrome bricks, waste corundum bricks, waste magnesia-carbon bricks, waste high alumina bricks, waste skateboard bricks, waste refractory bricks

Thermal and mechanical properties of commercial MgO-C bricks

Thermal and mechanical properties of commercial MgO-C bricks

MgO-C (magnesia-carbon) refractory bricks are widely used in steel industry, the primary consumer of refractory linings, such as basic oxygen furnaces, electric arc furnaces, and ladle furnac The steelmaking requires extreme chemical, thermal and mechanical conditions that demand a high performance of materials, able to withstand the action .

Magnesia Carbon Bricks Recycling Crushing

Magnesia Carbon Bricks Recycling Crushing

Study of spent refractory waste recycling from metal , refractory bricks are , These materials are often combined with carbon and , A second USBM study was aimed at recycling magnesia ,

JP2003212667A - Process for recycling used refractory ,

JP2003212667A - Process for recycling used refractory ,

(57) [Summary] The present invention provides a method for recycling post-use refractories used in steel factories and the like SOLUTION: This is a method of recycling a refractory after use, in which the operating surface and the back surface of the refractory after use are classified and pulverized as they are or without classification, and the powder after pulverization is determined for .

Life cycle assessment of refractory waste management in a ,

Life cycle assessment of refractory waste management in a ,

Abstract A life cycle assessment (LCA) is conducted on the current refractory waste management practices in a steel works in Spain producing around 6,000 tonnes of refractory waste in 2018 Management practices included direct reuse of spent magnesia-carbon (MgO-C) bricks, recycling of MgO-C bricks and high-alumina refractories by an external contractor and landfilling of monolithics.

Recycling Practices of Spent MgO-C Refractories

Recycling Practices of Spent MgO-C Refractories

spent refractory applications may require a strong technical background, a team approach and company commitments This paper will emphasize the importance of a technical background and a team approach to recycling MgO+C and MgO are widely used refractory materials in the EAF The low value of the spent refractories makes them difficult to recycle

Refractory magnesia-carbon scrap as a valuable secondary ,

Refractory magnesia-carbon scrap as a valuable secondary ,

The scrap after removing its finest grain fractions can be recycled and utilized for producing the magnesia-carbon refractory materials However, the finest grain fractions may be used, eg as a component of gunite mix

RECYCLING OF SPENT REFRACTORIES

RECYCLING OF SPENT REFRACTORIES

• Newest refractory recycling facility servicing Europe • 12,000M2 space dedicated to Recycling • ISO 9001, 14001 & OHSAS18001 accredited , • Magnesia-carbon ―Anti-Oxidant level • Magnesia-spinel ―Alumina based: • Classification by Al 2 O 3 content • Carbon bearing

The Reutilization Of Waste Refractories Has Formed A ,

The Reutilization Of Waste Refractories Has Formed A ,

The recycled magnesia-carbon bricks can be fully utilized and added to the magnesia-carbon brick mixtures, such as those used on the free surface of the ladle slag line, at a ratio of 30% to 50% The performance of recycled magnesia carbon bricks before and after recycling ,

Recycling for Refractory | yilong refractory

Recycling for Refractory | yilong refractory

Mar 05, 2014· A refractory used in the furnace due to the kind of the different parts and differentAll kinds of used refractory mixed together, make the quality of management of refractory difficult to operate, so before making re-use, recycling must be classifiedIt Were recycled by the category of magnesia, alumina, and a carbon-based, no-carbon-based and .

Spent Magnesia-Carbon Refractory Bricks from Steel ,

Spent Magnesia-Carbon Refractory Bricks from Steel ,

Spent Magnesia-Carbon Refractory Bricks from Steel Production: Potentiality of MgO-Clinker Recovery 40 by resin Depending on the application, the bricks can contain up to 98 wt % MgO (periclase), and residual carbon from 7 to 30 wt% To prevent the burning up of carbon, the antioxidants are added to the refractory mass (Staroň and Tomšu .

The use of graphite in the refractory industry

The use of graphite in the refractory industry

The volume of production of carbon-containing refractories in the world can be estimated at 30-32 Mt Installed magnesia-carbon production capacity in China reached 13Mt in 2012, of which over 1Mt was exported Refractories production compared with flake graphite supply (China)

Refractories - Magnesia - Carbon Refractories, History ,

Refractories - Magnesia - Carbon Refractories, History ,

Aug 21, 2002· About that time magnesia purity became a factor and a special low boron 96% magnesia grain having a lime to silica ratio of 2 to 3:1 was used extensively The 1980’s The 1980’s saw the development of resin bonded magnesia-graphite, first with higher carbon content and then with the addition of antioxidants to preserve the carbon content

Refractory – REFRA SUD

Refractory – REFRA SUD

•Refractory production More use of „recycling“ material (Magnesia,) Reduced need of raw materials – (Magnesia, Alumina, Resin, etc) Less emission from transportation (ie trucks etc) Less use of Binder/Resin •In-Situ (during use) Longer life time of Refractory linings; less repair and process changes (ie ladle transitions)

Reuse of waste refractory material in the steel industry

Reuse of waste refractory material in the steel industry

May 27, 2020· Comprehensive recycling technologies such as CTG-2A main trench joint ramming material, steel-making splash-proof aluminum carbon brick, and CAS dip tube middle can effectively improve the performance of high-value-added products of different waste refractory materials and make waste refractory materials comprehensive

refractory magnesia-carbon scrap as a valuable secondary ,

refractory magnesia-carbon scrap as a valuable secondary ,

materials are used in the manufacturing of most of magnesia-carbon refractori Therefore, the recycling of such no longer serviceable refractory scrap is fully justified in Poland if only this scrap could be processed to obtain its required properti The other component needed for the process, however in minor quantities of about

Effect of Magnesia-Carbon Refractory on the Kinetics of ,

Effect of Magnesia-Carbon Refractory on the Kinetics of ,

Dec 17, 2015· MgO-C refractory is widely employed as ladle lining materials in the low-oxygen potential steel for its high resistance of erosion and thermal shock Brabie et al[9,10] investigated the magnesia-carbon refractory dissolution in Al-killed, low-carbon steel They concluded that the MgO-C reaction can generate Mg vapor and then supply Mg to the .

Recycling of Some Waste Refractory Materials

Recycling of Some Waste Refractory Materials

Jun 10, 2020· Waste aluminum-magnesium-carbon bricks can be added in an appropriate amount when producing aluminum-magnesium-carbon bricks of the same material And it can crush waste aluminum-magnesium-carbon bricks into fine powder to produce refractory mortar of the same material, which is used to build aluminum-magnesium-carbon bricks

REFRACTORY RECYCLING EARNING YOUR ENVIRONMENTAL ,

REFRACTORY RECYCLING EARNING YOUR ENVIRONMENTAL ,

3 Refractory recycling Refractory recycling holds a range of ecological and cost advantages to the industry namely: • Refractory waste generated by operations is greatly reduced This in turn reduces waste disposal cost and less material being taken to landfill sit • Pre-fired material reduces the carbon ,

How to Recycle Used Refractory Bricks? | Western Coast

How to Recycle Used Refractory Bricks? | Western Coast

Jan 01, 2019· Because of concerns with chromium toxicity, spent-chrome containing refractories were the first to attract recycling attention, with research dating back to the early 1980s (Fang et al, 1999) and a first patent on reprocessing of spent magnesium-chrome bricks into refractory raw materials published in 1985 (Nazirizadeh et al, 1985)Increasing environmental awareness, increasing costs for .

CA1100661A - Method for preparing a magnesia carbon brick ,

CA1100661A - Method for preparing a magnesia carbon brick ,

ABSTRACT OF THE DISCLOSURE: A magnesia carbon brick comprising a mixture of magne-sia clinker and carbon, novolak phenol resin and a hardening agent A method for preparing the magnesia carbon brick comprising the steps of mixing magnesia clinker and carbon together, adding novo-lak phenol resin and a hardening agent to said mixture of magnesia clinker and carbon and mixing, ,