The fixed bed adopts subsection setting in order to enhance the fluid distribution. The hydrogenation adopts the latest palladium catalyst in domestic. The hydrogenation efficiency can reach 8.5-9.5g/L;

The oxidation yield reaches 93-95% by using parallel flow and counter flow process;

The post treatment adopts vacuum dehydration and alkali treatment process (outside system). The acidic working solution system improves essential safety.

Single line capacity is large, which is up to 1,000,000T/Y (calculated as 27.5%); Compared with the traditional fixed bed process, the investment cost of massive production can be greatly reduced.

The hydrogenation efficiency is 11.0-12.0g/L, the concentration of extracted solution of H2O2 could reach 37-42% at a time; it reduces the circulating amount of working solution, and then save the production cost.

The oxidation efficiency reaches 97%, the total yield could reach 96% during the production.

The post treatment of working solution adopts the technology of vacuum dehydration. The whole working solution of the process is fully acid, which improves essential safety.