Oxidized wax with high acid value and low ester value, preparation process thereof and esterified wax prepared from oxidized wax

The invention provides oxidized wax with a high acid value and a low ester value, a preparation process of the oxidized wax and esterified wax prepared from the oxidized wax. The preparation process of the oxidized wax with the high acid value and the low ester value comprises the following steps: 1, heating and melting raw material wax, adding an initiator and boric acid, uniformly mixing, introducing the mixed mixture and oxygen-containing gas into a micro-channel reactor, and carrying out a shallow oxidation reaction at the temperature of lower than 150 DEG C for 5-30 minutes; and 2, heating and melting a product obtained after the reaction in the step 1, adding an initiator, uniformly mixing, introducing the mixed material and oxygen-containing gas into a micro-channel reactor, and carrying out a deep oxidation reaction at 160-180 DEG C for 0.5-25 min. The oxidized wax obtained by the invention has the characteristics of high acid value and low ester value, and the components are relatively uniform; the e