N,N-dimethyl-1,3-propanediamine (nke a na-akpọ DMAPA) bụ diamine dị ala nke nwere ma atọ na amino dị iche iche na molecule. Ọ bụ mmiri mmiri na-enweghị ụcha na nke nwere isi amonia. Ọ na-ese anwụrụ na ikuku ma na-agbaze na mmiri na ihe mgbaze organic. Usoro ihe omimi ya bụ C5H14N2 na usoro nhazi ya bụ (CH3)2NCH2CH2CH2NH2.
Ọ bụ otu n'ime ihe dị mkpa iche nke fatty amine ogige na ihe dị mkpa organic akụrụngwa n'etiti. A na-eji ya na kemịkalụ kwa ụbọchị, ọgwụ pesticides, akwa, resins, wdg. Ugbu a, ọtụtụ DMAPA na China na-ejikarị akwadebe betaine na amidopropyldimethylamine, nke a na-eji na ngwaahịa kemịkalụ kwa ụbọchị dị ka ncha ntutu, gel ịsa ahụ, gel ịsa nwa. conditioner, mmiri mmiri ncha na ncha. Tụkwasị na nke ahụ, a na-ejikwa DMAPA mee ihe dị ka onye na-eme ka polyurethane, epoxy resin curing agent na accelerator, na mmepụta nke agba agba.

Ụzọ nchịkọta isi nke DMAPA bụ: 1. Iji dimethylamine na acrylonitrile dị ka akụrụngwa, dimethylaminopropionitrile (DMAPN) na-enweta site na mgbakwunye Michael. N'ime usoro nkwadebe nke DMAPN, ihe dị ka 2% nke mkpokọta akụrụngwa na-agbakwunye na mmiri iji kwalite mmeghachi omume mgbakwunye ma wepụ oke dimethylamine azeotropically; 2. DMAPN nwetara site na distillation na nzọụkwụ mbụ bụ catalytically hydrogenated n'okpuru ọnọdụ nrụgide dị elu. Nkwadebe nke DMAPA

Na nzọụkwụ nke abụọ nke hydrogenation iji kwadebe DMAPA, mmeghachi omume n'akụkụ ga-eme. Ngwaahịa sitere na mmeghachi omume a bụ nke kachasị amine bis-DMAPA nke abụọ na amine tri-DMAPA. Ka ọ dị ugbu a, mmepụta ụlọ nke DMAPA na-ebute mmeghachi omume kettle, na ihe na-akpata hydrogenation bụ ntụ ntụ Raney nickel. Iji gbochie nguzobe nke ngwaahịa a, ọ dị mkpa ịgbakwunye 12% -16% nke ihe na-eme ka ọkpụkpụ nke caustic alkali aqueous solution ma ọ bụ mmiri mmiri amonia, caustic alkali aqueous solution na mmiri mmiri amonia Iji mee ihe ga-emepụta nnukwu ego. mmiri na-ekpofu na mmiri na-ekpofu ihe, nke siri ike imebi na nhazi, na-abawanye ibu nke nhazi nhazi.

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