Suppression of the evolution of hydrogen sulfide gases from...

Details Suppression of the evolution of hydrogen sulfide gases from... Suppression of the evolution of hydrogen sulfide gases from...

C - Chemistry, Metallurgy

10

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C10G 29/20 (2006.01) C09K 8/54 (2006.01) C10L 1/222 (2006.01) C10L 1/232 (2006.01) C10L 1/233 (2006.01) C10L 1/24 (2006.01)

Patent

CA 2007965

Hydrogen sulfide gas evolution during storage or transport of petroleum residua are suppressed by the incorporation of an effective amount of a diamine of the formula Image wherein R1, R2, R3, and R4 are independently an alkyl radical containing 1 to 14 carbon atoms, (CH2)n-OR6 or cycloalkyl containing 5 or 6 carbon atoms and R5 is hydrogen or methyl. R1 and R2 and R3 and R4 can be alkylene groups joined together with their respective adjacent N to form a heterocyclic ring. R6 is hydrogen or an alkyl radical having 1 to 5 carbon atoms and n is an integer of 1 to 5.

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