TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Apparatus: The apparatus further comprises a pressure reducing units (30) having an elongated spiral flow path so that the reacted mixture is separated into glycerine and biodiesel by centrifugal force upon passing through the pressure reducing units. The fluid flow path comprises a continuous small bore tube. The unit for inducing fluid flow comprises several radially extending turbulators (25) which extend into the fluid flow path from a periphery so as to induce the reaction mixture to a central aperture defined by the turbulators. The turbulators are arranged at spaced intervals along the tube. The tube is formed in a several joined sections and the turbulators are disposed in joints between adjacent sections. The turbulators are disposed at an angle relative to a direction perpendicular of the length of the tube so as to induce a spiraling effect on liquid flowing in the tube.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The biodiesel and glycerine are separated by subjecting the reacted mixture to centrifugal force. The reaction mixture is passed through a heat exchanger (20) to raise the temperature of the reaction mixture to above 100degrees C. The reaction mixture is subjected to a further heating stage to further increase the temperature. The reaction mixture is passed through a reactor (22) having a continuous small bore tube (24) in which the pressure of the mixture is increased above ambient pressure. The small bore tube is provided with several turns so as to provide an elongated flow path within the reactor. The small bore tube contains unit to promote turbulent flow of reagents. The reacted mixture is passed through a heat exchanger to reduce the temperature of the reacted mixture. The reacted mixture is subsequently passed through an additional cooler so as to further reduce the temperature of the reacted mixture. The reacted mixture is passed through a pressure reducing unit having an elongated spiral flow path so passing the reacted mixture through the pressure reducing unit causes the reacted mixture to separate into glycerine on an outside of the flow path and biodiesel on an inside of the flow path. Preferred Components: The alcohol is methanol (14). EXAMPLE - No suitable example given.