Technical services

Technical services

At Separeco we are organized to test new matrices for our customers and establish with them an extraction set to trial the process and analyze the extract. We have ultra-high performance pilot machine and well-equipped advanced laboratory to meet customers’ needs. At the end of the series of extraction tests we draw up a detailed report for our customer to make the necessary decisions. There are also cases in which the customer simply wants to try the extraction from his own matrix before proceeding with the purchase of the machine and then proceed with the purchase.

Process set-up

If you have not enough experience in the extraction with supercritical fluids, it is difficult to fine-tune the extraction process of your matrix and you can be disappointed by the efficiency obtained, far from the expectations. Separeco will help you choosing the right characteristics of the matrix such as the degree of humidity, particle size and pre-treatment and suggest you process techniques such as the correct filling of the basket, the definition of pressure and temperature and, very important, the time of residence, controlled by the CO2 flow rate. Separeco technicians will also determine the correct extraction kinetics for you by delivering a detailed report with tables and graphs.

There are cases where you need to use uncommon strategies to get the desired result. This is the case of step extraction, which allows the process to be divided into several parts, each one with different pressure, temperature and flow rate parameters. In other cases, however, it is necessary to adopt a static/dynamic extraction, to give the CO2 time to penetrate particularly difficult matrices. Furthermore, it may be necessary to resort to the use of small amounts of co-solvent, when the target compound is less soluble in CO2 than expected. All these strategies, once learned, can be applied in each of our machines, which is already set up for their use.

New process recipe design

All our machines work in a completely automatic way, managing the process autonomously. All the information that the machine uses to process your material are writtenin the recipes. The recipe is like a computer program: it controls step by step what the machine is about to do. In our machines it is possible to memorize an unlimited number of recipes, each one specific for a different type of matrix.

Simply load the recipe corresponding to the matrix loaded in your extractors. The recipes are written in a standard software language, called ISO. Anyone with knowledge of the ISO language can write a recipe from scratch and make the machine do what he wants. If your company doesnot have a similar professional figure, Separeco will write the recipe for you. Once written,we will send youthe new recipe. Simply load it into the machine end start the extraction. Very easy!