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 · SL/RN technology of Lurgi , West Germany has been the most successful one. Little success has been achieved by other coal based technologies namely CODIR technology of Krupp Industriatechnik now Mannesmann Demag, W.G., DRC technology of Davy Mckee, USA; ACCAR technology of Allis Chalmers now Boliden Allis, USA and the …

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The SL/RN process is a proven coal-based direct reduction technology, its versatility being characterised by flexibility in the use of raw materials (lump ores, pellets, iron-bearing sands, mill scale, lignite, subbituminous and bituminous coal and anthracite) and plant capacities (from single units of 30,000 - 250,000 tpy to multi-kiln plants ...

An established alternative to coal and coke-based reduction of iron ores in blast furnaces is the ore reduction by coal or reformed natural gas (CO, H2) to direct reduced iron (DRI) or hot ...

 · BSIL manufacturing technology is based on Lurgis coal-based SL/RN process (part-financed by a loan from the International Finance Corporation, IFC). The DRI plant …

the sl/rn process is a proven coal-based direct reduction technology, its versatility being characterised by flexibility in the use of raw materials (lump ores, pellets, iron-bearing sands, mill scale, lignite, subbituminous and bituminous coal and anthracite) and plant capacities (from single units of 30,000 - 250,000 tpy to multi-kiln plants …

 · A strong correlation was found between the melt-in carbon content of the liquid steel and the final tap nitrogen content, with melt-in carbon of 0·3%C or higher resulting in nitrogen levels below 50 ppm at tap, even when charging DRI material that is high in nitrogen. Keywords: SL/RN Rotary kiln Direct reduced iron Nitrogen control

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 · Lurgi/Republic–National (SL/RN) process, makes up 50% or more of the total iron charge. The SL/ RN DRI samples from a kiln cooler had high nitrogen contents (50–250 ppm, depending on

 · The so-called Stelco-Lurgi/Republic Steel-National Lead (SL/RN) process is a widely used coal-based DRI-making process which uses a rotary kiln. The process uses …

 · HYL III and SL/RN - The two widely accepted Direct Reduction (DR) Processes of ironmaking 10-Oct-2009 Direct Reduced Iron (DRI) is obtained by reducing lumps as well as fines of iron ore in solid state at a relatively low temperature of around 1000OC. A large number of DR processes are available today. SL/RN and HYL are two …

Sl Rn Lurgi Dri Process Beemsterbuitenplaatsennl SLRN process As an answer to decreasing ore grades availability of lump ore and ever-increasing amount of fine ores and concentrates Outotec has developed a variant of the process the SLRN-Xtra direct reduction process which allows customers to produce direct reduced iron DRI for steelmaking …

 · The special features of the SL/RN process have been outlined and the high flexibility, both in respect to iron bearing materials and fuels, was pointed out.In the light of two examples it was demonstrated that the SL/RN process will be utilized for the production of pig iron and steel. The results obtained in electric arc furnaces are particularly …

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 · process is the urgi GasificationL process, licensed by Lurgi Clean Coal Technology Company. The Lurgi Gasification technology is well-proven, with over 102 gasifiers in commercial operation worldwide, the earliest of these built in 1955. Eighty of these units are deployed in South Africa, using high ash coals very similar to Indian coals.

JJ-Lurgi Engineering is a joint venture between Jebsen & Jessen (SEA) and Air Liquide. Our engineering roots are in Germany; in Asia we contract ourselves locally and have established in-house a new generation of expertise attuned to our clients' particular needs. Our technologies include: Edible Oil Extraction, Oil Refining, Fats Modification, …

 · In the steel plant considered here, direct reduced iron (DRI), produced by the coal based Stelco–Lurgi/Republic–National (SL/RN) process, makes up 50% or more of …

 · Air Liquide draws extensiveexpertise in-depthunder standing createrobust, reliable efcientmethanol plants. All technology developedin-house continuouslyimproved, consolidating our leading position industry.Efcient reliableLurgi methanol technology provides complete solutions, designed preciseneeds ourcustomers. Exceptional solutions …

 · by the fact that the SL/RN DRI contains virtually no carbon (which would aid in preventing nitrogen pickup). The proposed mechanism of nitrogen pick-up by the SL/RN DRI is one where nitrogen present within the atmosphere of the rotary cooler (where hot DRI, discharged at 1000°C from the rotary kiln, is cooled to

 · SL/RN is the most widely accepted coal based DR process. It was jointly developed by Stelco, Lurgi Chemie, Republic Steel Company and National Lead …

 · BSIL manufacturing technology is based on Lurgis coal-based SL/RN process (part-financed by a loan from the International Finance Corporation, IFC). The DRI plant is designed to produce 150000 tonnes of sponge iron per annum. Currently, the firm has 500 employees. BSIL also own a captive 5 MW power plant. Recent News.

stelco lurgi republic steel national lead sl rn process. balance of dri process in slrn - zelena-kavaeu SL/RN Process Industrial Efficiency Technology, The so-called Stelco-Lurgi/Republic Steel-National Lead SL/RN process is a widely used coal-based DRI-making process which uses a rotary kiln The process uses lump ore, pellets, beach sand or …

 · Lurgi plant for Inchon Iron Works, Korea: Throughput 230,000 tpy, lump ore and pellets with an average iron content of 60%; anthracite reductant, oil as fuel. The product with a degree of reduction of 75% was smelted in an electric furnace to pig iron. Due to economic reasons, this plant was not restarted after an accident.

sl rn technology stelco lurgi repuplic steel national lead. iron ore fines based pellet plant in great kiln process in. The so-called Stelco-Lurgi/Republic Steel-National Lead SL/RN process is a widely used coal-based DRI-making process which uses a rotary kiln The process uses lump ore pellets beach sand or ilmenite ore and solid carbon to produce …

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 · The charge then passes into the reduction zone where the temperature is maintained between 1000C and 1100C and the final reduction occurs to produce DRI with a metallization of approximately 93% and carbon content of approximately 0.1 to 0.2%. The DRI can be discharged either hot or cold. Retention time of the charge is typically 10 hours.

01-09-2015· The actual process of the coal based sponge iron production is based on SL/RN process (jointly developed by the Steel Company of Canada, Lurgi Chemie, …

As an answer to decreasing ore grades, availability of lump ore and ever-increasing amount of fine ores and concentrates, Outotec has developed a variant of the process, the SL/RN-Xtra direct reduction …

The actual process of the coal based sponge iron production is based on SL/RN process (jointly developed by the Steel Company of Canada, Lurgi Chemie, Republic Steel Company and National Lead Corporation in 1964), which works on direct reduction of oreThis process is adopted by worldwide conventional sponge iron industri. Read More

 · Corrosion occurs when the metallic iron in DRI is wetted with fresh or salt water, and reacts with oxygen from the air to form rust, Fe (OH) 3. The corrosion reactions continue as long as water is present. Corrosion is very exothermic, but as long as water is present, the temperature does not reach much above 100 °C.

 · New Method of DRI Production . . . . . K avir Damghan Steel Company is to employ the so-called Stelco-Lurgi/Republic Steel-National Lead (SL/RN) method to produce direct reduced iron. The...