Disperse Systems in Chemical Technologies
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The master program “Disperse Systems in Chemical Technology” has two main aims: (1) students to take a first-hand look on the basic phenomena and processes in disperse systems, on the factors that determine their behavior, and on the methods for control and analysis of these systems; (2) to present the areas of application of disperse systems in modern chemical technologies – pharmaceutical, food, ceramics and so on.Disperse systems (such as emulsions, foams, suspensions, aerosols, porous materials, etc.) are the basis for a number of technological processes and final products for general use. Well-known examples are food emulsions and foams (mayonnaise, sauces, ice creams, mousses, flavored drinks, etc.). Pharmaceutical emulsion and suspensions, cosmetic emulsions and foams (creams, body lotions, shampoos, hair conditioners, foams, etc.), paints for households and industry. With very wide technological application are solid foams which are used for construction materials, also emulsions of liquid-liquid extraction, foams for fire protection and for cleaning of large tanks, ceramic materials as insulators in the production of sanitary ceramics, porous materials as adsorbents and catalyst carriers. But some disperse systems create large problems such as aerosol industrial pollution, oil emulsions, or formation of undesired foam during fermentation and paper production – in these cases we have to find appropriate chemicals (anti-foaming agents, de-emulsifiers) to eliminate unwanted dispersion.A specific feature for all disperse systems is the highly developed surface that appears between the dispersed and continuous phase. This requires the adsorption of surfactants which stabilize the dispersed particles. In recent years, global trend is the use of natural surfactants (instead of synthetic one) for application in complex disperse systems, involving several phases with different functions in the final product. These systems require a deep understanding of the fundamental laws that control the interfacial adsorption of surfactants, interactions between dispersed particles, the effect of the impact of external forces (electrical, gravitational, inertial) and other processes which determine the stability and properties of the dispersion.
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Sofia
Bulgaria
1504
Bulgaria
- 1.5 years
- Full Time
- On Campus Learning
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