US 7,320,779 B2
Process for manufacturing an oxirane
Michel Strebelle, Brussels (Belgium); and Jean-Pierre Catinat, Waudrez (Belgium)
Assigned to Solvay (Societe Anonyme), Brussels (Belgium)
Filed on Mar. 07, 2007, as Appl. No. 11/682,904.
Application 11/682904 is a division of application No. 10/940992, filed on Sep. 15, 2004, granted, now 7,205,419.
Application 10/940992 is a division of application No. 10/182776, granted, now 6,815,552, previously published as PCT/EP01/00976, filed on Jan. 30, 2001.
Claims priority of application No. 00200344 (EP), filed on Feb. 02, 2000.
Prior Publication US 2007/0149790 A1, Jun. 28, 2007
Int. Cl. B01J 8/22 (2006.01)
U.S. Cl. 422—187  [422/189; 549/531] 26 Claims
 
1. A plant for producing hydrogen peroxide and using the hydrogen peroxide so made for manufacturing an oxirane by reaction between an olefin and said hydrogen peroxide,
wherein the hydrogen peroxide is manufactured by an alkylanthrahydroquinone (AO) process in which an aqueous hydrogen peroxide solution is obtained by extraction, with substantially pure water, of a mixture derived from the oxidation of at least one alkylanthrahydroquinone, without a subsequent washing, purification treatment or combination thereof.