TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The catalyst is basic compounds, alkaline metal hydroxides and carbonates, alkaline metal alcoholate, alkaline earth metal hydroxides, oxides and carbonates, barium alcoholate such as barium methoxide and ethoxide, ammonia, ammonium hydroxide, alkylammonium hydroxide, amines, compounds carrying amine, amide and/or pyrrolidone functions, and/or zeolite. The catalyst or product of its modification is reacted with carbon dioxide to form carbonate or bicarbonate. The carbonate and bicarbonate is used for catalyst regeneration. The catalyst is basic compound and catalyst or product of its modification is reacted with sulfuric acid to form insoluble sulfate.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The manufacture of fatty acid ester involves forming reaction medium comprising source and reagent in reactor, spinning at least one of tubes for reaction time to generate product medium, removing product medium from reactor, and separating removed product medium into at least one lipophilic phase and at least one hydrophilic phase. The spinning rate is 50-12000 rpm. The gap between two tubes is 0.2-2.0 mm. The reaction medium is formed by hydrolyzing triglyceride to form hydrolyzate medium comprising fatty acids and glycerol, separating fatty acids from glycerol in hydrolyzate medium, and combing separated fatty acids with reagent. Preferred Component: The source is triglycerides, diglyceride, monoglyceride, free fatty acids, fatty acid salts and/or phospholipids, preferably triglycerides. The reagent is alcohol with single or multiple hydroxyl functions and their esters, hydroxycarboxylic acids and their esters, and/or hydroxylamine and their esters. The reagent is chosen from methanol or ethanol. The reaction medium comprises catalyst. The catalyst is chosen from bases more volatile than glycerol, bases of low solubility in glycerol and bases of molecular weight 3000 Daltons or more. The catalyst is separated from product medium by distillation, filtration, centrifugation or membrane filtration. A separated catalyst is recycled. The catalyst is bound to internal surface of reactor. The reaction time is 60 seconds or less. The reactor is maintained at 0-1000 degrees C. The molar ratio of source to reagent is 1-1:1-10. The product medium is separated into at least one lipophilic phase and at least one hydrophilic phase within in 60 seconds. The catalyst is volatile. Unreacted reagent and catalyst are separated by distillation and recycled in reactor. The reaction is conducted in continuous mode and yield is 95%. The glycerol-comprising coproduct is formed. EXAMPLE - Soybean oil and methanol were reacted in presence of sodium hydroxide or amine catalyst at 25-60 degrees C for 2-10 seconds, to obtain reaction product. The obtained reaction product had two phases (biodiesel and glycerol). The two phases were separated in about 10 minutes.