1. Ensure the pH of hydrogenation and oxidant. Anthraquinone method was used in alkali environment. The oxidation of hydrogenation solution and extraction of peroxide should be carried out in acidic environment. Oxidizing solutions crack when they become alkaline, causing accidents.

2. The alkali treatment technology was improved. In the event of anomalies occurring during the alkaline process, the resulting gas is separated from the tower. In the case of inadequate separation, the alkalinity of the working liquid can reach levels hundreds of times higher than the standard index.

3. The oxygen concentration in the oxidation tail gas is strictly controlled. Oxidation tail gas is a flammable gas. In production, an explosive gas is produced when the oxygen content in the mixed exhaust gas reaches more than 15%. Therefore, it is necessary to strictly control flammable and oxygen in tail gas. In order to ensure the safety of production, nitrogen is usually used to dilute the oxidation tail gas, and the oxygen concentration does not exceed 10%.