Mineral oils

This is mainly refined petroleum products - lubricating oils, hydraulic oils, industrial oils, etc. In recent years developed a synthetic substance (polialfaolefiny, glycol, alkibenzoly, silicones, complex esters, mixing and other products) intended to carry out the respective roles, their tradition is also called «oil», from the English word oil - petroleum, oil. All mineral oils easier to water, hardly dissolve in it therefore has the property float, preventing natural aeration, which often cause environmental problems (waste refineries, tanker accidents, spills near benzozapravok etc.).

Synthetic oils

produced by the synthesis of organic and element-organic compounds from hydrocarbon (polialfaolefiny), also of synthetic oils are: esters polyatomic alcohols, esters dvuosnovnyh carboxylic acids, polisiloksanovye fluid (silicone ) Fluorine-and chlorofluorocarbons. The high stability properties of synthetic oils, and that their strength varies slightly depending on temperature, the beginning of widespread use of oils of this class engines and other mechanical devices working at high temperature. For synthetic oils also characterized by the slow process of decomposition (degradation). In addition to use in heavy industry (automotive, aircraft, etc.) synthetic oils are used in light industry (eg to suppress education foam), and also find application in cosmetics (for care of the skin the body, drops and eye ointments ). The most widespread use of synthetic oils have been in automobile engines, as well as modern engines are designed to make the viscous and cleaning properties of synthetic oils, unattainable for the mineral. Without treatment, recovery and recycling synthetic oils are hazardous to the environment.

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