Molten Metal Desulfurization Reactor

Product Specifications

Technical details and manufacturing context for Molten Metal Desulfurization Reactor

Definition

A Molten Metal Desulfurization Reactor is a critical industrial system used in steelmaking and other basic metal production processes to reduce sulfur content in molten metal baths. It typically consists of a refractory-lined vessel where a desulfurizing agent, such as calcium carbide or magnesium, is injected into the molten metal stream. The system includes injection lances, reagent storage and feeding mechanisms, and process control instrumentation to monitor and optimize the chemical reaction that forms sulfide compounds, which are then removed as slag. This process is essential for producing high-quality, low-sulfur steels with improved mechanical properties and reduced brittleness. The reactor is designed for batch operation with a vessel capacity ranging from 10 to 100 tonnes of molten metal. Operating temperatures typically range from 1200 to 1600 °C, and reagent injection is carried out at pressures between 0.5 and 1.5 bar. The system achieves a final sulfur content of ≤0.005 ppm, with a desulfurization efficiency of 85–95%. Reagent consumption is typically 5–15 kg per tonne of molten metal, and treatment time per batch cycle is 20–60 minutes. Power consumption, including stirring and auxiliary systems, is in the range of 50–200 kW. The reactor shell is made of pressure vessel steel conforming to ASTM A516 Gr.70, and the refractory lining protects the vessel from high temperatures and chemical attack. The total weight of the system, depending on capacity and design, is between 15 and 80 tonnes, and the footprint, including auxiliary equipment, ranges from 20 to 100 square meters. Electrical enclosures are rated IP54 to IP65 per IEC 60529. All values are reference ranges and must be verified for the specific model and application with the legal manufacturer or supplier.

Working Principle

Desulfurizing reagents are injected into molten metal, where they react with dissolved sulfur to form stable sulfide compounds that float to the surface and are removed with the slag. The injection lance delivers the reagent deep into the melt to ensure thorough mixing and contact. Process control sensors monitor temperature, pressure, and reagent flow to optimize the reaction. The refractory lining contains the high-temperature melt and protects the vessel shell. The resulting sulfide-rich slag is skimmed off, leaving low-sulfur metal ready for further processing.

Common Materials

refractory lining, carbon steel shell, injection lance, process control sensors

Technical Parameters

Parameter	Typical range	Notes & selection driver
Vessel CapacityRequired	10–100 tonnes	Working volume of molten metal
Operating TemperatureRequired	1200–1600 °C	Required molten metal temperature range
Injection PressureRequired	0.5–1.5 bar	Pressure for reagent injection
Final Sulfur ContentRequired	≤0.005 ppm	Target sulfur level after treatment
Desulfurization Efficiency	85–95 %	Depends on reagent type and injection
Reagent Consumption	5–15 kg/t	Per ton of molten metal
Treatment Time	20–60 min	Per batch cycle
Power Consumption	50–200 kW	Includes stirring and auxiliary systems
Material Grade	ASTM A516 Gr.70	Pressure vessel steel for shellASTM A516
Weight	15–80 t	Depends on capacity and design
Footprint	20–100 m²	Includes auxiliary equipment
IP Rating	IP54–IP65	For electrical enclosuresIEC 60529

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Reaction Vessel
Contains molten metal during treatment

Material: Refractory-lined steel
Reagent Injection System
Delivers desulfurizing agent into molten metal

Material: Stainless steel
Lance Manipulator
Positions injection lance in metal bath

Material: Carbon steel
Process Control Panel
Monitors and controls treatment parameters

Material: Electronic components
Dust Collection System Optional
Captures fumes and particulates

Material: Steel ducting

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Molten Metal Desulfurization Reactor.

Manufacturers of Molten Metal Desulfurization Reactor

Manufacturer profiles associated with Molten Metal Desulfurization Reactor.

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Frequently Asked Questions

What is the typical vessel capacity of a molten metal desulfurization reactor?

The vessel capacity is typically in the range of 10 to 100 tonnes of molten metal, depending on the specific model and application. This is a reference range and must be confirmed with the manufacturer for the exact unit.

What operating temperature range is required for desulfurization?

The required molten metal temperature range is typically 1200 to 1600 °C. This ensures the metal remains molten and the chemical reaction proceeds effectively. Verify the exact range for your specific reactor.

What is the expected desulfurization efficiency?

The desulfurization efficiency is typically 85–95%, depending on reagent type and injection parameters. The final sulfur content after treatment is ≤0.005 ppm. These are reference values and should be verified for the specific process.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Atmospheric to 1.5 bar
flow rate:	5-50 tons/hour
temperature:	1400-1600°C
slurry concentration:	10-30% reagent by weight

Molten Metal Desulfurization Reactor

Product Specifications

Industry Taxonomies & Aliases

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

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