| 摘要 |
1,171,485. Anthrahydroquinones. DEUTSCHE GOLD - UND SILBER - SCHEIDEANSTALT VORMALS ROESSLER. 14 Feb., 1967 [22 Feb., 1966], No. 6987/67. Heading C2C. [Also in Division C1] Anthrahydroquinones and tetrahydroanthraquinones are formed in the main and secondary reactions respectively in a cyclic process for the preparation of H 2 O 2 (see Division C1) by catalytically reducing anthraquinones using a mixed catalyst of palladium with total quantities of up to 50% by weight based on palladium of one or more of the elements Ru, Rh, Os, Ir and Pt during the hydrogenation stage. |
