EMULSION STABILITY TESTING

TURBICSAN LAB

DISPERSION AND EMULSION STABILITY

KEY PARAMETERS 20 TIMES FASTER

In order to improve formulations, key physical parameters of dispersions and emulsions need to be measured. These parameters must be measured at normal concentrations if the analysis is to truly reflect the real particle interactions.

The Turbiscan measures concentrated dispersions without dilution up to 95% v/v. The mean particle diameter can be calculated over a wide size range, from 0.05 to 1000 microns.

FAST RESULTS

The Turbiscan detects and quantifies the actual destabilisation processes. Particle size variations (coalescence or flocculation) can be visualised, and particle migration (sedimentation or creaming) can be quantified. This multiple light scattering technique requires no sample preparation and is non destructive.

Results are obtained 20 to 50 times faster than with traditional methods. Sample temperature control means that dispersion stability and product aging can be analysed at specific temperatures from ambient to 60deg. C

SPECIFICATION CHECKS

Comparison of particle diameter and volume fraction to those of a reference sample can be made in seconds.

Product specification checks include:

QUICK MEASUREMENT OF HEAVY FUEL OIL STABILITY

Formulaction launched a new instrument, Turbiscan Heavy Fuel, in collaboration with Associated Octel (UK), a company manufacturing additives. The instrument complies with the ASTM D7061-04 for measuring heavy fuel oil stability. This is the first instrument providing an objective, repeatable and accurate measurement of asphaltene stability in heavy fuel oils.

The Turbiscan Heavy Fuel analyser enables measurement of the stability reserve of heavy fuel oil in 15 minutes. This parameter quantifies the capacity of asphaltenes to precipitate and settle within a fuel oil. It allows the accurate optimisation of the concentration of additives to maximise the stability of the fuel. The technology can also have other applications within the petroleum field, such as de-emulsification of water-in-oil emulsions, stability of drilling fluids, or any applications in which the stability or destabilisation of dispersed systems need to be monitored.

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