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stainless steel autoclave reactor

stainless steel autoclave reactor

Scope of application

Stainless steel autoclave reactors are used for high-pressure, high-temperature chemical reactions, hydrothermal synthesis, crystallization, and material research.

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Stainless Steel Autoclave Reactor

Stainless steel autoclave reactors are essential pressure vessels widely used in chemical synthesis, material science, pharmaceutical research, and industrial process development. Designed to withstand high temperatures and high pressures, these reactors provide a sealed and controlled environment for reactions involving liquids, gases, or supercritical fluids.

Due to their excellent corrosion resistance, mechanical strength, and thermal stability, stainless steel autoclave reactors are ideal for hydrothermal synthesis, solvothermal reactions, polymerization, hydrogenation, and catalyst testing. They play a critical role in both laboratory-scale experiments and pilot-scale production.

Stainless steel autoclave reactors

What Is a Stainless Steel Autoclave Reactor?

A stainless steel autoclave reactor is a high-pressure, high-temperature reaction vessel typically made from stainless steel grades such as SS304, SS316, or SS316L. It is designed to safely contain chemical reactions under extreme conditions while maintaining precise control over temperature, pressure, stirring speed, and reaction time.

These reactors are commonly equipped with:

  • Pressure-rated reactor body
  • High-temperature sealing system
  • Heating system (electric or oil heating)
  • Mechanical or magnetic stirring
  • Temperature and pressure sensors

Key Materials Used in Stainless Steel Autoclave Reactors

SS304 Stainless Steel

SS304 is suitable for general chemical reactions involving neutral or mildly corrosive substances. It offers good mechanical strength and cost efficiency.

SS316 / SS316L Stainless Steel

SS316 and SS316L provide superior corrosion resistance, especially against acids, chlorides, and solvents. These grades are commonly used in pharmaceutical, chemical, and advanced material applications.


Working Principle of Stainless Steel Autoclave Reactors

The working principle of a stainless steel autoclave reactor is based on sealed reaction under controlled pressure and temperature.

  1. Raw materials are loaded into the reactor chamber
  2. The reactor is sealed using high-pressure bolts or clamps
  3. Heating raises the internal temperature and pressure
  4. Stirring ensures uniform mixing and heat distribution
  5. Reaction proceeds under controlled conditions
  6. Cooling and depressurization occur after completion

This controlled environment enables reactions that are impossible under atmospheric conditions.


Types of Stainless Steel Autoclave Reactors

Laboratory Autoclave Reactors

Used for research and development, typically ranging from 25 ml to 10 liters, ideal for material synthesis and chemical research.

Pilot-Scale Autoclave Reactors

Used to bridge laboratory research and industrial production, helping optimize process parameters.

Industrial Autoclave Reactors

Designed for continuous or batch production under extreme conditions, often customized for specific processes.


Heating Methods in Stainless Steel Autoclave Reactors

  • Electric heating jacket – precise temperature control
  • Oil bath heating – uniform heating for sensitive reactions
  • Steam heating – suitable for industrial environments

Each heating method is selected based on reaction requirements and scale.


Applications of Stainless Steel Autoclave Reactors

Hydrothermal and Solvothermal Synthesis

Widely used for synthesizing crystals, nanomaterials, and functional materials under high pressure and temperature.

Pharmaceutical Research

Used for drug synthesis, intermediate reactions, and API development under controlled conditions.

Chemical Industry

Ideal for polymerization, oxidation, hydrogenation, and catalytic reactions.

Material Science

Used for producing advanced ceramics, battery materials, and composite materials.


Advantages of Stainless Steel Autoclave Reactors

  • Excellent corrosion resistance
  • High pressure and temperature tolerance
  • Long service life
  • Precise reaction control
  • High safety standards

Safety Features and Design Considerations

Safety is a critical aspect of stainless steel autoclave reactor design. Key safety features include:

  • Pressure relief valves
  • Burst discs
  • High-temperature seals
  • Overpressure protection
  • Interlocking systems

Proper operation and maintenance ensure safe and reliable performance.


Maintenance and Cleaning

Regular inspection, cleaning, and seal replacement are essential for maintaining reactor performance. Stainless steel surfaces are easy to clean and compatible with most solvents and cleaning agents.

Stainless Steel Autoclave Reactor Technical Parameter

ModelBSF-10LBSF-20LBSF-30LBSF-50LBSF-100L
Power(W)200(1:3)
External dimensions(mm)540*480*1800550*700*1830550*700*1950700*600*2050700*800*2270
Number of cauldron lid openings8
Temperature measurement port50.5 chuck / φ8 temperature measuring tube50.5 chuck / φ12 temperature measuring tube
Drop hole50.5 mm chuck/1000 ml funnel50.5 mm chuck / 2000 ml funnel
Return hole50.5 chuck / φ3850.5 chuck / φ38
sight glassφ51φ89
sight glassφ32/
Feeding port/φ89
Pressure gauge port50.5 mm chuck / integrated pressure gauge
exhaust vent2-way exhaust valve
Mixing holeSUS316L propeller-type mixing impeller
High and low temperature resistance (°C)-120~260
Stainless steel thickness (mm)φ3φ4
Discharge valve port diameterφ35

Stainless Steel Autoclave Reactor  Video

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