Welcome to SepTech
Your leading destination for molecular level separation and purification techniques
Delivering precise volumetric scale up of Ion Exchange processes since 1978, With Process Vessels up to 7.5metres in diameter.
At Separation Techniques Limited, we pride ourselves on being a team of dedicated process Scientists and Engineers specialising in ion exchange resin (IEX) technology applications and scale-up. Our mission is to provide unparalleled expertise and support to meet your purification needs effectively. With nearly four decades of experience in resin application industries globally, we specialise in process development and scale-up of chromatographic and ion exchange resin techniques for the Food, Pharmaceutical, Chemical & Petrochemical sectors.
How can we assist you?
We offer a comprehensive modular process design package, to include:
- Process development: test work at laboratory and pilot plant scale
- Flow-sheeting | plant design | Piping and Instrumentation Diagram
- Process vessel design and supply
- Vessel Internal Engineering design and supply
- Control system | process logics
Our areas of expertise:
Separation Techniques excels in:
- Process development
- Design and Supply of Ion Exchange plants
- Scale-up: LABORATORY – PILOT – OPERATIONAL FACILITY
In addition, we also provide: - Technical review of existing designs
- Hydraulic analysis of existing operational systems
- Inspection & commissioning service
Learn Our Story
At SepTech, our dedication to technical excellence and innovation drives us to push the boundaries of ion exchange technology, delivering unmatched solutions to our clients globally.
Involved in process development and scale up of bespoke processes for the Food, Pharmaceutical, Chemical & Petrochemical industries using chromatographic and ion exchange techniques, the Company has nearly four decades of experience in resin application industries globally. Having worked closely with the resin manufacturer Rohm and Haas Company (now known as Dow) as their preferred consultants for special applications in the process industries, we can provide the most efficient process solution to the end customer.
Typical Plant Performance
The sharpness of the elution peaks shown in the following elution graphs is typical of SepTech designs. These graphs show good resolution of the peaks with neither any leading /rounded peaks at the beginning nor tailing of the peaks at the end.
This is indicative of a healthy ion exchange system and includes amongst others a well packed resin bed with excellent plug flow that has been achieved using good fluid distribution systems designed to deliver optimum performance. This principle forms the simple but crucial basis of successful ion-exchange scale up applied by Separation Techniques Limited on all its process applications.
Good results during chromatographic separation or ion exchange is not solely dependent on the correct choice of resin. It also depends upon several other factors and would include:
- Good chemistry – the right choice of regenerant and carefully selected flow rates
- Very low mixing volumes so as to prevent dilution of material entering or leaving the column. This shows up as sharp flow fronts (please see photo on the right: The brownish discolouration is the sharp front proceeding down during regeneration)
- Good packing of the resin bed
- Good fluid distribution designs
Emphasis is placed by SepTech on its distributor designs to ensure that the top of the bed is not disturbed at the different flow rates used in the process. In addition to even distribution of flow into and out of the entire resin bed area, the distributors itself must not be clogged by the feed material or indeed the resin itself and there must be no dead spaces.
Anion Effluent profile: Within 3 bv of regenerant & rinse water (combined), the resin is ready to go back into production.
Cation Effluent profile: Within 2 ½ bv of regenerant & rinse water (combined), the cation resin is ready to go back into production.
Have A Query?
If you would like further information about any of the services we offer, please don’t hesitate to reach out to us.