PRIMIX static mixers can be used for the mixing and diluting of various chemicals, such as ammonia and caustic soda. Also, the mixing of ammonia in water under formation of substantial heat effects is possible with the static mixer. In addition, with a static mixer concentrations, pH and Redox, are often set. At the exit of the mixer the concentration is measured in-line, after which a regulator administers a dosage at the input.
General applications of the static mixers and heat exchangers are:
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Reactors
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Hydrogenators
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Heat transfer processes
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Crystalliser
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Multi-Stage processes
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Draft Tubes
- Pilot plants / research centres (R&D)
Static mixers and heat exchangers for chemical processes
Within this field of application parameters like pressure drop, residence time, plug -flow, corrosion and heat transfer are often of importance. In the sizing programme, drafted on the basis of empirical data, all of these parameters are variable. In PRIMIX's draft proposal, an overview of these parameters in the form of data sheets is included, so the client understands which choices can be made.
Advantages of the PRIMIX static mixer
Advantages of the PRIMIX static mixer - tubular mixer
- Chemical savings
- Lower energy consumption
- No moving parts
- Maintenance free
- ATEX
- No direct drive required
- No extra tanks
- Simple installation
- Little space needed
- Totally closed piping system
- Can be manufactured with optional injectors
- Optional sheath for heat exchange
- Worldwide support
Applications
Application areas static mixers for chemical processes
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Chemicals - liquid mixing and dilution
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Tube reactors
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Mixing of gas flows
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Vaporization
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Absorption and dispersion in order to obtain mass transfer
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Gas - liquid contacting
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Dilute with water checked for density.
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pH correction by adding alkali or acid
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Blending a catalyst for the start of a reaction
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Blending a de- activator to stop a reaction
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Extracting a component from a liquid or a gas
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Dissolving a gas into a liquid
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Blending ammonia into waste gas for DeNOx catalyst bed
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Mixing ammonia gas in hot air for the production of nitric acid
- H2SO4 dilution
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Static mixer for hot mills
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Good control of exothermic or endothermic processes
Mixers for explosion hazardous processes - ATEX

The PRIMIX static mixers can be manufactured optionally with an ATEX certification. The “Ex II 2DG” classification means in practice that the PRIMIX mixers can be used anywhere except in mine shafts. We take into account all possible hazardous situations and take measures to prevent them; a HAZOP is drawn up and you receive a comprehensive guide that will keep you fully informed about the do's and don'ts of this product . Finally, you will receive the ATEX certificate.
Case study data sheets:
Frequently asked questions
When to specify a static mixer over a dynamic mixer in a chemical process?
A static mixer is ideal when continuous inline mixing, low maintenance costs, no moving parts, and high operational reliability are required. This makes them particularly suitable for chemical processing installations and plants with strict uptime and safety criteria.
How do I determine the right static mixer for my process?
To select the correct configuration, important parameters include:
- Flow properties: Flow rate and viscosity.
- Composition: Density and phase ratio.
- Performance: Required Mixing quality (CoV value) and allowable pressure drop.
- Environment: Process conditions (pressure, temperature).
- Note: A supplier such as PRIMIX can assist with process calculations once the static mixer process data form form has been completed.
For which processes in the chemical industry are static mixers suitable?
Static mixers are widely applied for:
- Liquid-liquid mixing
- Gas-liquid dispersion
- Polymer addition
- Neutralization
- pH adjustment
- Heat transfer
Are static mixers suitable for ATEX environments?
Yes, Since static mixers have no moving or electrical parts, they are highly suitable for ATEX zones in petrochemical and chemical installations.
What are the benefits of a static mixer heat exchanger within a Chemical process?
Integrating a static mixer heat exchanger offers specific project advantages:
- One-time investment (CAPEX friendly).
- No spare parts required (Reduced inventory).
- Relatively fast delivery and simple installation.
- Low Total Cost of Ownership (TCO).
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