PRIMIX is a supplier and developer of static mixers and heat exchangers for refineries, petrochemical plants and the gas processing industry. With over 30 years of experience, we provide solutions for high viscosity mixing, dispersion, desalination, gas/liquid mixing and turbulent mixing of media.
Inline static mixers and heat exchangers
PRIMIX static mixers are suitable for upstream applications in exploration drilling, both onshore and offshore, and also recovery, storage and distribution of oil and gas.
Applications
PRIMIX static mixers are used for:
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Crude oil / water sampling
- Custody transfer mixing
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Crude oil mixing and desalting
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Gas sweetening
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LNG desuperheating
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Mud Mixers
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Well Bore Cement Mixers
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Oil Sands Mixers
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Desalination
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CO2 reduction in natural gas
The downstream production includes cracking / converting oil into fuels, asphalt and several other petrochemical products. Here the PRIMIX static mixers and heat exchangers can be used for:
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Several refining processes
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Cooling asphalt
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Petrol blending
- Wash water mixers
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Blending of diesel, gasoline, lubricants and natural gas at tank farms
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Alkylation
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Coal Slurry applications
- USLD mixing
Advantages of the Primix Static Mixer
Advantages of the PRIMIX static mixer - tubular mixer
Suitable for mixing at very high pressures
Lower energy consumption
No moving parts
Maintenance free
ATEX
No direct drive required
Simple installation
Little space required
Totally closed piping system
Can be manufactured with optional injectors
Optional sheath for heat exchange
Worldwide support
Mixers for explosion hazardous processes

The family of PRIMIX static mixers can be manufactured optionally with an ATEX certification. The “Ex II 2DG” classification means in practice that our 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 will 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 certificate.
Prevents frequent corrosion problems at refineries and gas production companies
During the lifetime of a refinery, the quality of the crude oils that are ingested gradually deteriorate. The reason is that easy to win sources dry up and then a switch over to harder to gain sources is needed which usually increases the undesirable impurities in these oils. The corrosion resistance of expensive equipment in a refinery is then no longer sufficient and the equipment rapidly becomes unserviceable. In-line interference from all types of corrosion inhibitors is by far the most cost efficient method to put a halt to this process. Static mixers are particularly well suited for that.


FPAL and JQS registered
PRIMIX is FPAL and JQS registered (Achilles registration) for the oil and gas industry. The certificates are published in the download section.
Case study data sheets:
- #51 Static mixer for biodiesel production
- #55 BS&W / Custody transfer mixing
- #56 Pilot Plants mixing
Frequently asked questions
When should you choose a static mixer over a dynamic mixer?
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 oil and gas processing projects with strict uptime and safety criteria.
For which processes in the petrochemical and oil & gas industries are static mixers suitable?
Static mixers are widely used for liquid-liquid mixing, gas-liquid dispersion, polymer addition, neutralization, pH adjustment, and heat transfer.
How do I determine the right static mixer for my process?
Important parameters include:
- Flow rate and viscosity
- Density and phase ratio
- Mixing quality (CoV value)
- Allowable pressure drop
- Process conditions (pressure, temperature)
- A supplier such as PRIMIX can assist with process calculations once the static mixer process data form has been completed.
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 an Oil or gas processing installation or project?
- One-time investment
- Low Total Cost of Ownership (TCO)
- No spare parts required
- Relatively fast delivery and simple installation
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