| 摘要 |
FIELD: organic chemistry, chemical technology, microbiology. ^ SUBSTANCE: invention relates to a method for preparing esters of acrylic acid and (C2-C8)-aliphatic alcohols. Method involves hydrolysis of acrylonitrile to acrylic acid ammonium salt by using the strain of bacterium Alcaligenes denitrificans C-32 VKM 2243 D. Then ammonium salt is converted to acrylic acid by acidification with sulfuric acid (the mole ratio = 1:0.5), extraction of acrylic acid with the corresponding alcohol, esterification of acrylic acid in the presence of sulfuric acid and the polymerization inhibitor followed by isolation of the ready product by the known procedure. Method provides reducing consumption of sulfuric acid and the polymerization inhibitor, to reduce energy consumption and, therefore, formation of by-side product and equipment corrosion. ^ EFFECT: improved preparing method. ^ 5 ex |
