Dispersant for chloroprene unit fouling
AssigneeNalco Chemical Company
InventorNatu R. Patel
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Abstract
The present invention provides a method for inhibiting fouling deposits in chloroprene production units. The deposits are inhibited by addition to the chloroprene feedstock of an effective amount of a dispersant prepared in accordance with this invention. The dispersants comprise imides which are prepared by reacting substituted succinic anhydrides with amines.
Claims19
A method of inhibiting the formation of foulant deposits on the surfaces of processing equipment in contact with a chloroprene process stream during chloroprene recovery which comprises adding to the liquid or gaseous phases of said stream an effective antifouling amount of a dispersant which is a polyalkenylsuccinimide having the formula:
- ##STR15## wherein R is an aliphatic alkenyl or alkyl moiety having at least about 50 carbon atoms and less than about 200 carbon atoms, Q is a divalent aliphatic radical, n is a positive integer, A is hydrocarbyl, hydroxyalkyl or hydrogen, Z is H or ##STR16##
A method of inhibiting the formation of foulant deposits on the surfaces of processing equipment in contact with a chloroprene process stream during chloroprene recovery which comprises adding to the liquid or gaseous phases of said stream an effective antifouling amount of a dispersant which is a polyalkenylsuccinimide having the formula:
- ##STR18## wherein R is an aliphatic alkenyl or alkyl moiety having at least about 50 carbon atoms and less than about 200 carbon atoms, Q is a divalent aliphatic radical, n is a positive integer, A is hydrocarbyl, hydroxyalkyl or hydrogen, Z is H or ##STR19##
Dependencies are inferred from the claim text.