Process for preparing an epoxide

Abstract

A mixture of compounds containing 1,3-dichloropropan-2-ol, 2,3-dichloropropan-1-ol, and a halogenated ketone, where the halogenated ketone content of the mixture is at least 0.0001% by weight and less than or equal to 0.1% by weight relative to the 1,3-dichloropropan-2-ol and 2,3-dichloropropan-1-ol.

1 . A process comprising forming an epoxy resin by subjecting to a dehydrochlorination operation in the presence of at least one alcohol other than glycerol a mixture of compounds comprising 1,3-dichloropropan-2-ol, 2,3-dichloropropan-1-ol, and a halogenated ketone, wherein the halogenated ketone content of said mixture is at least 0.0001% by weight and less than or equal to 0.1% by weight relative to the 1,3-dichloropropan-2-ol and 2,3-dichloropropan-1-ol. 
     
     
         2 . The process according  claim 1 , wherein the halogenated ketone content of the mixture of compounds is of less than or equal to 0.04% by weight. 
     
     
         3 . The process according  claim 2 , wherein the halogenated ketone content of the mixture of compounds is of less than or equal to 0.005% by weight. 
     
     
         4 . The process according to  claim 1 , wherein the halogenated ketone in the mixture of compounds contains 3 to 18 carbon atoms and in which one or more hydrogen atoms have been replaced by a halogen atom. 
     
     
         5 . The process according to  claim 4 , wherein the halogenated ketone is a chlorinated ketone. 
     
     
         6 . The process according to  claim 5 , wherein the chlorinated ketone is chloroacetone. 
     
     
         7 . The process according to  claim 1 , wherein the mixture of compounds contains more than 50% by weight of 1,3-dichloropropan-2-ol and 2,3-dichloropropan-1-ol. 
     
     
         8 . The process according to  claim 1 , wherein the mixture of compounds contains more than 50% by weight of 1,3-dichloropropan-2-ol and 2,3-dichloropropan-1-ol and wherein the halogenated ketone is chloroacetone. 
     
     
         9 . The process according to  claim 1 , wherein the mixture of compounds further comprises water. 
     
     
         10 . The process according to  claim 1 , wherein the mass ratio between 1,3-dichloropropan-2-ol and 2,3-dichloropropan-1-ol in the mixture of compounds is greater than or equal to 0.4. 
     
     
         11 . The process according to  claim 1  the at least one alcohol is a polyol other than glycerol. 
     
     
         12 . A process comprising forming epichlorohydrin by subjecting to a dehydrochlorination operation a mixture of compounds comprising 1,3-dichloropropan-2-ol, 2,3-dichloropropan-1-ol, and a halogenated ketone, wherein the halogenated ketone content of said mixture is at least 0.0001% by weight and less than or equal to 0.1% by weight relative to the 1,3-dichloropropan-2-ol and 2,3-dichloropropan-1-ol. 
     
     
         13 . The process according  claim 12 , wherein the halogenated ketone content of the mixture of compounds is of less than or equal to 0.04% by weight. 
     
     
         14 . The process according  claim 13 , wherein the halogenated ketone content of the mixture of compounds is of less than or equal to 0.005% by weight. 
     
     
         15 . The process according to  claim 12 , wherein the halogenated ketone in the mixture of compounds contains 3 to 18 carbon atoms and in which one or more hydrogen atoms have been replaced by a halogen atom. 
     
     
         16 . The process according to  claim 15 , wherein the halogenated ketone is a chlorinated ketone. 
     
     
         17 . The process according to  claim 16 , wherein the chlorinated ketone is chloroacetone. 
     
     
         18 . The process according to  claim 12 , wherein the mixture of compounds contains more than 50% by weight of 1,3-dichloropropan-2-ol and 2,3-dichloropropan-1-ol. 
     
     
         19 . The process according to  claim 12 , wherein the mixture of compounds contains more than 50% by weight of 1,3-dichloropropan-2-ol and 2,3-dichloropropan-1-ol and wherein the halogenated ketone is chloroacetone. 
     
     
         20 . The process according to  claim 12 , wherein the mixture of compounds further comprises water. 
     
     
         21 . The process according to  claim 12 , wherein the mass ratio between 1,3-dichloropropan-2-ol and 2,3-dichloropropan-1-ol in the mixture of compounds is greater than or equal to 0.4.