SUMMARY

Energetic crisis of 70th in the last century has pointed out a need to looking for a new sources of energy because of two reasons at least; decrease of a fossil fuels dependencies as well as limitation of the fossil fuels accessible quantity, Possible use of a new sources of the energy was intensified by those occurrences. A biodiesel fuel is one of the most significant energy sources since we can get it from the agriculture products as oil rape, sunflower and soybean. Researching, production and use of the biodiesel fuel was prevented by the lobby of the world oil companies. It is well known that the biodiesel fuel is effective, economicaly acceptable, technologicaly effective and flexible fuel. Also, the latter is biodegradable and there is no harmful influence to an environment. Production of the biodiesel fuel is very rational and a production leftovers are useful for some other purposes. Because of the all mentioned advantages there is increase of the biodiesel fuel usage, Today, there is biodiesel fuel production in 21 world countries, but researches show that there is tendency toward world widespread in both production and use of the same.

          Key words: Energetic crisis, new sources of energy, a fossil fuels dependencies, biomasse, biodiesel, biodegradability, esterification, rapseed-oil-methyl-ester, production flexibility, mechanical pressing, chemical treatment, oil cake, harmonious influence to anr environment.