| 摘要 |
An alkylanthraquinone working solution as used in the manufacture of hydrogen peroxide, in the oxidized form is cooled to from 20 DEG to 40 DEG C. and fed to a slurry type catalytic hydrogenator maintained at from 38 DEG to 60 DEG C., and 10 to 100 psig. From 10 to 90% of the catalyst free hydrogenated working solution is cooled to from 20 DEG to 40 DEG C. and recycled to the hydrogenator.
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