Purification of alkylated anthraquinones

Details Purification of alkylated anthraquinones Purification of alkylated anthraquinones

C - Chemistry, Metallurgy

07

C

260/236.31

C07C 50/18 (2006.01) C07C 50/16 (2006.01)

Patent

CA 1240674

Abstract: PURIFICATION OF ALKYLATED ANTHRAQUINONES The invention is for a process for removing un- alkylated anthraquinones from alkylated anthraquinone by forming a solution thereof, reducing the solution sufficiently so that at least part of the unalkylated anthraquinone is in the reduced form and extracting the reduced solution in the absence of an oxidizing agent with an aqueous alkaline solution. The process is especially suited for removing anthraquinone from an alkylated anthraquinone for use in the manufacture of hydrogen peroxide by reducing and oxidizing a solution of the alkylated anthraquinone.

452215

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