Iroyin

Urea le ṣee lo ni titobi nla bi ohun elo aise fun iṣelọpọ melamine, urea formaldehyde resini, hydrazine hydrate, tetracycline, Phenobarbital, caffeine, brown brown BR, phthalocyanine B, phthalocyanine Bx, monosodium glutamate ati awọn ọja miiran.

O ni ipa didan lori didan kemikali ti irin ati irin alagbara, ati pe o lo bi oludena ipata ninu yiyan irin, ati ni igbaradi ti ojutu imuṣiṣẹ palladium.
Ni ile-iṣẹ, o tun lo bi ohun elo aise fun iṣelọpọ urea formaldehyde resini, polyurethane ati resini Melamine. Nigbati awọnureajẹ kikan si 200 ℃, o nmu melamine to lagbara (ie cyanuric acid). Awọn itọsẹ ti Cyanuric acid trichloroisocyanuric acid, sodium dichloroisocyanate, tri (2-hydroxyethyl) isocyanurate, tri (Allyl Ẹgbẹ) isocyanurate, tri (3,5-di-tert-butyl-4-hydroxybenzyl) isocyanate, tri Glycidol ether ti isocyanic acid. , ati eka melamine ti cyanuric acid ni ọpọlọpọ awọn ohun elo pataki. Meji akọkọ jẹ awọn apanirun giga-opin tuntun ati awọn bleaches, pẹlu agbara iṣelọpọ lapapọ ti o ju 80000 toonu ti trichloroisocyanuric acid ni kariaye.
Aṣoju idinku yiyan fun denitrification ti gaasi eefin ijona, bakanna bi urea adaṣe, ti o ni 32.5% urea mimọ-giga ati 67.5% omi deionized.
Idinku Catalytic Yiyan (SCR) itọju lẹhin-itọju jẹ imọ-ẹrọ kan ti o yan yiyan dinku idinku ti awọn oxides nitrogen (NOx) ninu gaasi eefi ọkọ ayọkẹlẹ nipasẹ iṣesi pyrolysis ti amonia ti ipilẹṣẹ nipasẹ urea ninu eefi ijona. O jẹ bọtini ati imọ-ẹrọ ojulowo fun idinku awọn nkan ipalara bii NOx ninu awọn gaasi eefin ijona gẹgẹbi awọn igbomikana ati awọn ẹrọ diesel. Eto SCR jẹ eto pataki lati pade awọn ofin itujade ti o muna ati ilana ti Hyundai Motor Company, gẹgẹbi awọn ilana Euro IV/Euro V/Euro VI (orilẹ-ede IV/orilẹ-ede V/orilẹ-ede VI).urea ọkọ ayọkẹlẹni a pe ni AdBlue ni Yuroopu ati DEF ni Amẹrika.

Awọn ohun elo aise ti awọn pilasitik pataki, paapaa Urea-formaldehyde, diẹ ninu awọn ohun elo aise roba, ajile ati awọn eroja ifunni, rọpo iyọ antifreeze ti o tuka ni opopona (anfani ni pe ko ba irin), mu õrùn siga pọ si, fifun ile-iṣẹ Pretzel brown , diẹ ninu awọn shampulu, awọn ohun elo ifọṣọ, awọn eroja ti apo-itura akọkọ-iranlọwọ (nitori urea fesi pẹlu omi lati fa ooru), Diesel itọju urea adaṣe adaṣe engine, engine Egbin gaasi lati awọn ohun ọgbin agbara gbona le paapaa dinku ohun elo afẹfẹ nitrogen, akopọ ti olupolowo ojo (iyọ eka), ti a lo lati ya paraffin (nitori urea le ṣe agbekalẹ akojọpọ Inclusion), awọn ohun elo ifasilẹ, akopọ ti epo engine ayika, akopọ ti ehin funfun awọn ọja, awọn ajile kemikali, awọn aṣoju oluranlowo pataki fun tite ati titẹ.