C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 15/023 (2006.01) B01D 61/14 (2006.01) B01J 19/24 (2006.01) B01J 23/96 (2006.01) B01J 37/00 (2006.01)
Patent
CA 2150492
A method for the separation of catalyst-free working solution from a working solution of the hydrogenation cycle of the so-called anthraquinone method for the production of hydrogen peroxide containing noble-metal black (particularly palladium black) as catalyst, by filtration of the catalyst-containing working solution using filter cartridges. The filter cartridges are formed of an open-pore support body with an average pore width in a range of to 100 um, and of a single-layer or multi-layer membrane of ceramic material with an average pore width in a range of greater than 1 up to 10 um and located on the outside surface of the support body. The catalyst-containing working solution passes through the membrane first.
Birkenbeil Hans
Brand Ulrich
Goor Gustaaf
Kunkel Wolfgang
Aktiengesellschaft Degussa
Evonik Degussa Gmbh
Marks & Clerk
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