Mobarakeh Steel Company (MSC) is the biggest steel producer in Middle East and Northern Africa and the biggest DRI producer in the world. It is the quality producer of more than 50% of Iran’s steel in all major markers including automotive, construction, household appliances, and packaging. Mobarakeh Steel operates in seven industrial complexes and employs more than 20000people in different parts of the country. MSC’s iron ore (raw material) comes from mines in Golgohar and Chadermaloo(Kerman and Yazd provinces) and are converted to pellets in the pelletizing plant (diameters: 8-10 mm).
After being reduced in the direct reduction (DR) plant and removed of  oxygen, pellets are converted to (sponge iron). Sponge iron and iron scrap is melted in electric arc furnaces, after which liquid steel is purified in secondary purification units. The steel’s chemical compound is designed by customer demand. The, it is transported to casting machines for slab production. After cooling, slab is rolled at the hot rolling mill, creating hot coils (thickness: 1,5-16 mm). some slabs are sold ; others go to the hot finishing mill for complementary work and hot sheet transformation or the cold rolling mill to lower strip thickness to 0.18 mm. cold rolled coils are also dedicated for the tinning, galvanizing, and prepainting lines.
Mehrgodaz Refractories was established in 1997 in Sefid-Dasht industrial zone, Chaharmahal-and-Bakhtiari province. However, considering rapid changes in refractories production, the company was designed in 2002 corresponding to the latest technological achievements in refractories production (especillay basic refractories). The factory was brought  into service by producing magnesia- graphite bricks for steel ladles in2003. After that magnesia- graphite bricks for EAF and BOF, alumina-graphite bricks for LF, different types of magnesia, magnesia-chromite and magnesia-spinel bricks as well as magnesia based basic masses for steel industries were added to the company’s product portfolio.
The annual production capacity of the factory, based on the initial design, was 20000t of various refractories including 15000 t of shaped products (bricks) and 5000t of unshaped masses. With the redesign in 2011, by adding a 2500 t automatic press and establishment of a production line with the capacity of producing 10000 t of basic masses, the total production capacity of the factory mounted to 30000 t/a. the company attempted to run a project to produce corundum-mullite heat shields for  combustion chambers in (V94.2) gas turbines (version 3 and 5) in a cooperation contract with Iran Power Development Organization (Thermal Power Plants Holding Company) in 2010. Following a very good performance of the produced heat shield in power plants of Jahrom and Kermanshah, the company established a fully independent production  line for high alumina product which makes Mehrgodaz Refractories as the only heat shield producer in the Middle East.
Further visits were arranged near Tehran at Armitaj Sanitary Ware and Co.Sina Tile which manufactures both sanitaryware and tiles.
Keynote on refractories
One keynote lecture at the 2nd international Conference on Ceramics on 16-18 May 2017 in Tehran was dedicated to refractories. A. A. Nourbakhsh (Islamic Azad University/IR) reported on Investigation of Oxide , None-Oxide Nano-Composites Addition on Properties of N-SiC and MgO-C Refractories.
N-SiC and MgO-C refractories are widely used in ferrous and nonferrous industries. The therm-omechanical  properties of these type of refractories were most important challenge for researchers  and producers. During the last decade many researches have been concentrated on decreasing low melting phases through the matrix of N-SiC.Also metallic and non-oxide additives were used to improve, oxidation resistance of MgO-C refractories. The addition of (MgO- SiC) and (MgO-B C) nano composites was studied using a magnesiothermal process and nano structure SiAION powder which was prepared by carbothermal reduction and nitridation (CRN) method. The resulting thermomechanical properties of N-SiC and oxidation resistance of (MgO-C) bodies were investigated.
Results showed that, oxid and non- oxide nano structure additives, not only lead to body sintering improvement but also the decrease of low melting phase amount in N-SiC and oxidation resistance of MgO-C refractories. Presence of SiC and MgO in nanocomposite (MgO- SiC)could be useful for phase transformation and also sintering of SiC matrix in N-SiC refractories. Also in MgO-C refractories, increasing of oxidation resistance could be related to superfine particles of MgO and B C simultaneously through the matrix.

http://www.refractories-worldforum.com