Technological parameters of the ammonolysis of waste 1,2-dichloropropane.
The ammonolysis of waste 1,2-dichloropropane (DCP) using liquid ammonia has been investigated. The influence of temperature, molar ratio of NH3/1,2-dichloropropane and reaction time was examined. The highest yield of the synthesis was achieved at a temperature of 140 degrees C, for the reaction time of 3 h and the molar ratio of NH3/1,2-dichloropropane as 20:1. Under these conditions the degree of 1,2-dichloropropane conversion amounted to 97.1 mol% and the selectivity of transformation to 1,2-diaminopropane (DAP) in relation to consumed 1,2-dichloropropane was 25.3 mol%, whereas in relation to consumed ammonia 17.9 mol%. The remaining 1,2-dichloropropane reacts to form polypropyleneamines.
Bartkowiak
Marcin
M
Institute of Organic Chemical Technology, Technical University of Szczecin, Pulaskiego 10, PL 70-322 Szczecin, Poland.
Lewandowski
Grzegorz
G
Milchert
Eugeniusz
E
D000641:Ammonia / Q000737:chemistry*; D002384:Catalysis; D006256:Hazardous Waste / Q000032:analysis*; D009994:Osmolar Concentration; D044367:Phase Transition; D011407:Propane / Q000031:analogs & derivatives* / Q000737:chemistry*; D012996:Solutions; D013379:Substrate Specificity; D013696:Temperature
D006256:Hazardous Waste; D012996:Solutions; D000641:Ammonia; C004765:propylene dichloride; D011407:Propane