| 摘要 |
FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to technology of organic synthesis of aliphatic propylene amines, in particular, to polypropylene polyamines that are used for preparing polymeric sorbents, fungicide preparations, hardening agents for epoxy resins. For preparing polypropylene polyamines 1,2- and 1,3- dichloropropanes are subjected for interaction with 20-30% ammonia an aqueous solution at temperature 140-180 C, under pressure 0.6-3.0 MPa, in the mole ratio dichloropropanes : ammonia = 1:(2.5-4.0). Process is carried out in stirring at rotation rate 60-3000 rev/min for 4-8 h. Both individual 1,2- and 1,3-dichloro- propanes and waste in production of epichlorohydrin of the following composite are used as a raw, wt.-%: 1,2-dichloropropane, 70-80; cis- and trans-isomers of 1,3-dichloropropene, 15-20; 1,1- and 1,2-dichloropropane, 2-10; perchloroethylene, 0.1-0.3. Preferably, the process is carried out in the presence of stabilizing agents piperazinophenols or aminophenols taken in the amount 0.2-1.0% of weight of dichloropropane taken to reaction obtained by aminomethylation reaction of protected phenols. EFFECT: enhanced yield of end product, simplified technology. 3 cl, 12 ex |
