When the oxygen partial pressure is greater than 0.4Mpa, the degree of oxidation of aromatic aldehydes is intensified. Therefore, an oxygen partial pressure of 0.4 is more reasonable
When the oxygen partial pressure is greater than 0.4 MPa, the oxidation degree of aromatic aldehydes is intensified. Therefore, it is reasonable to have an oxygen partial pressure of 0.4<br>
When the oxygen partial pressure is greater than 0.4Mpa, the oxidation degree of aromatic aldehyde is intensified, so the oxygen partial pressure of 0.4 is more reasonable