N,N-dimethyl-1,3-propanediamine (oo hadda loo yaqaan DMAPA) waa diamine aliphatic hooseeya oo leh kooxaha amino ee saddexaad iyo kuwa aasaasiga ah labadaba molecule-ka. Waa dareere aan midab lahayn oo hufan oo leh ur ammonia ah. Waxay ku qiiqdaa hawada waxayna ku milmaysaa biyaha iyo dareerayaasha dabiiciga ah. Qaaciddadeeda molecular-ka waa C5H14N2 qaaciddeeda qaab-dhismeedkana waa (CH3)2NCH2CH2CH2NH2.
Waa mid ka mid ah noocyada muhiimka ah ee isku-dhafka amine-ka dufanka leh waana mid muhiim u ah walxaha ceeriin ee dabiiciga ah. Waxaa si weyn loogu isticmaalaa kiimikooyinka maalinlaha ah, sunta cayayaanka, rinjiga, resins-ka, iwm. Waqtigan xaadirka ah, inta badan DMAPA ee Shiinaha waxaa inta badan loo isticmaalaa diyaarinta betaine iyo amidopropyldimethylamine, kuwaas oo loo isticmaalo waxyaabaha kiimikada maalinlaha ah sida shaambo, jel qubeyska, jel qubeyska ilmaha, qaboojiye, saabuun dareere ah iyo saabuun. Intaa waxaa dheer, DMAPA waxaa sidoo kale loo isticmaalaa sidii kataliye polyurethane ah, wakiil daaweyn resin epoxy iyo dardar-geliye, iyo soo saarista midabaynta.

Wadada isku-darka ugu weyn ee DMAPA waa: 1. Iyada oo loo adeegsanayo dimethylamine iyo acrylonitrile sida walxo cayriin ah, dimethylaminopropionitrile (DMAPN) waxaa laga helaa iyada oo loo marayo Michael ingredient. Inta lagu jiro diyaarinta warshadaha ee DMAPN, qiyaastii 2% wadarta guud ee cufka walxaha ceeriin ah ayaa guud ahaan lagu daraa biyaha si kor loogu qaado falcelinta ku-darka iyo in laga saaro dimethylamine xad-dhaafka ah si azeotropic ah; 2. DMAPN-ka laga helo distillation tallaabada ugu horreysa waxaa lagu shubaa hydrogen iyadoo la raacayo xaalado cadaadis sare leh. Diyaarinta DMAPA

Tallaabada labaad ee hydrogenation-ka si loo diyaariyo DMAPA, falcelin dhinac ah ayaa dhici doonta. Waxyaabaha ka soo baxa falcelintan badanaa waa amine bis-DMAPA labaad iyo amine tri-DMAPA saddexaad. Waqtigan xaadirka ah, wax soo saarka gudaha ee DMAPA wuxuu inta badan qaataa falcelinta kettle, kicinta hydrogenation-kana waa budo Raney nickel. Si loo xakameeyo sameynta badeecadan ka soo baxda, waxaa lagama maarmaan ah in lagu daro 12%-16% cufka kicinta ee xalka biyaha alkali ee caustic ama ammonia dareere ah, xalka biyaha alkali ee caustic iyo ammonia dareere ah. Isticmaalku wuxuu soo saari doonaa xaddi badan oo biyo qashin ah iyo dareere qashin ah, taas oo ay adag tahay in la burburiyo oo la farsameeyo, taasoo kordhinaysa culeyska ka dambeeya habaynta.

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