| 摘要 |
FIELD: organic chemistry. SUBSTANCE: method is carried out by nitration of benzene with 80-100 % nitric acid, molar ratio of reagents being 1.5: 1.0-4.0: 1.0. The process takes place in the medium of nitrobenzene at 37-49 C in cascade of three reactors. Thus prepared mass is diluted by water till concentration of waste acid is 20-28 %, nitrobenzene is separated, washed by water, highly volatile impurities being distilled. EFFECT: improves efficiency of method. |
