Editorial Technical Reference

Reaction Vessel

This page explains how Reaction Vessel is classified within Basic Metal Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

The primary containment vessel where molten metal and desulfurizing agents interact to remove sulfur impurities.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Reaction Vessel

Definition
A specialized vessel within the Molten Metal Desulfurization Reactor system designed to withstand extreme temperatures and corrosive environments. It serves as the core chamber where molten metal (typically iron or steel) is treated with desulfurizing agents (such as calcium carbide, magnesium, or lime-based compounds) through injection or stirring mechanisms to facilitate chemical reactions that bind and remove sulfur, thereby improving metal quality and mechanical properties. The vessel is constructed with a refractory-lined steel shell and high-temperature alloys to endure the harsh operating conditions. Key parameters include a working volume of 10–50 m³, operating temperatures of 1200–1600°C, and a design pressure of 0.5–1.0 bar (per GB 150). The refractory lining thickness ranges from 200–350 mm, and the shell material is typically Q345R (per GB 713) with a high alumina castable lining (Al₂O₃–SiC). The vessel operates at a pressure of 0.1–0.5 MPa and features mechanical sealing (per API 682) to prevent gas leakage. Stirring speeds of 30–120 rpm are adjustable for mixing efficiency, and heating power of 500–2000 kW (electric or gas) maintains the required temperature. The overall weight, including refractory lining, is 20–80 t, with overall dimensions of 3–6 m in diameter. These specifications are reference ranges; actual values must be confirmed with the manufacturer for specific models and applications. The vessel is a critical component in basic metal manufacturing, ensuring effective desulfurization and consistent metal quality.
Working Principle
The reaction vessel operates by containing molten metal at high temperatures (typically 1300–1600°C). Desulfurizing agents are introduced into the vessel through lances, injectors, or mechanical stirrers. The vessel maintains the molten state while providing controlled conditions (temperature, atmosphere, mixing) that promote efficient contact between the metal and reagents, allowing sulfur to form stable compounds (slags) that can be separated from the purified metal. The refractory lining and high-temperature alloys protect the vessel from thermal and chemical degradation. Stirring speed and heating power are adjusted to optimize mixing and temperature uniformity. The vessel's design pressure and sealing ensure safe operation under the specified conditions.
Common Materials
Refractory-lined steel, High-temperature alloys
Technical Parameters
ParameterTypical rangeNotes & selection driver
Working VolumeRequired10–50 Maximum volume of molten metal the vessel can hold during operation
Operating TemperatureRequired1200–1600 °CTemperature range maintained during desulfurization process
Design PressureRequired0.5–1.0 barMaximum internal pressure the vessel is designed to withstandGB 150
Refractory ThicknessRequired200–350 mmThickness of refractory lining for thermal insulation and corrosion resistance
Operating Pressure0.1–0.5 MPaBelow 0.1 MPa stirring efficiency drops
Shell MaterialQ345RPressure vessel steelGB 713
Lining MaterialAl₂O₃–SiCHigh alumina castable
Stirring Speed30–120 rpmAdjustable for mixing efficiency
Heating Power500–2000 kWElectric or gas heating
Sealing TypeMechanicalPrevents gas leakageAPI 682
Weight20–80 tIncluding refractory lining
Overall Dimensions3–6 mDiameter range

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
  • Refractory Lining Part
    Provides thermal insulation and protects the steel shell from high temperatures and corrosive molten materials
    Material: Alumina, magnesia, or silica-based refractory bricks/castables
  • Steel Shell Part
    Structural support and containment for the refractory lining and process materials
    Material: Carbon steel or low-alloy steel plate
  • Lance Ports Part
    Openings for inserting desulfurizing agent injection lances into the molten metal
    Material: High-temperature alloy or water-cooled copper
  • Thermocouple Wells Part
    Protected passages for temperature measurement probes
    Material: Ceramic or high-temperature metal sheaths
  • Heating System
    Holds the bath at reaction temperature through the treatment.
  • Mechanical Stirrer Optional
    Stirs the bath to bring reagent and metal into contact, as an alternative to lance injection.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Reaction Vessel.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0-5 bar (0-72.5 psi) gauge
flow rate: 10-100 m³/h (44-440 gpm) molten metal
temperature: 800-1600°C (1472-2912°F)
slurry concentration: 5-30% solids by weight
Media Compatibility
✓ Molten steel desulfurization with calcium-based reagents ✓ Molten iron treatment with magnesium-based compounds ✓ Copper/nickel alloy refining with soda ash mixtures
Unsuitable: Hydrochloric acid or chloride-rich environments (risk of stress corrosion cracking)
Sizing Data Required
  • Required sulfur removal capacity (kg/hour)
  • Available installation footprint (length × width × height)
  • Required residence time for reaction completion (minutes)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Stress corrosion cracking
Cause: Combination of tensile stress from pressure/temperature cycling and corrosive environment from process chemicals, often exacerbated by chloride presence or acidic conditions.
Creep deformation
Cause: Long-term exposure to elevated temperatures near material limits, causing gradual plastic deformation and thinning of vessel walls, particularly in high-temperature applications.
Maintenance Indicators
  • Unusual vibration patterns or audible knocking during operation indicating potential agitator imbalance or internal component failure
  • Visible weeping or small leaks at welds, nozzles, or flange connections, especially when accompanied by corrosion staining
Engineering Tips
  • Implement regular non-destructive testing (NDT) including ultrasonic thickness measurements and dye penetrant inspections at high-stress areas to detect early degradation
  • Maintain strict control of process parameters (temperature, pressure, chemical concentrations) within design limits and avoid rapid thermal cycling to reduce thermal stress fatigue

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ASME BPVC Section VIII - Pressure Vessels PED 2014/68/EU - Pressure Equipment Directive

Quoted from the published standard.

Manufacturing Precision
  • Wall Thickness: +/-0.5mm
  • Flange Flatness: 0.1mm per 300mm diameter
Quality Inspection
  • Hydrostatic Pressure Test
  • Ultrasonic Thickness Testing

Manufacturers of Reaction Vessel

4 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Hefei Yangmai Technology Instrument Co., Ltd
Anhui, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Huixin Machinery
Shandong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Wuxi Yikai Automation Technology Co., Ltd.
Wuxi, Jiangsu, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Xi'an TOPTION Instrument Co., Ltd.
Shaanxi, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
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Frequently Asked Questions

What is the typical working volume of this reaction vessel?

The working volume is specified as 10–50 m³, which is the maximum volume of molten metal the vessel can hold during operation. Confirm the exact volume for your specific model with the manufacturer.

What materials are used for the vessel shell and lining?

The shell material is typically Q345R pressure vessel steel (per GB 713), and the lining is a high alumina castable (Al₂O₃–SiC). The refractory lining thickness ranges from 200–350 mm. Verify material grades and thickness with the supplier.

What are the operating temperature and pressure ranges?

The operating temperature range is 1200–1600°C, and the operating pressure is 0.1–0.5 MPa. The design pressure is 0.5–1.0 bar (per GB 150). Always confirm these values for your application.

How is the vessel sealed to prevent gas leakage?

The vessel uses a mechanical sealing type (per API 682) to prevent gas leakage. Ensure that the sealing system is properly maintained and inspected according to the manufacturer's guidelines.

Data Basis

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

Preliminary Technical Classification
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