Nūhou

Hiki ke hoʻohana ʻia ka Urea i nā mea nui e like me ka mea maka no ka hana ʻana i ka melamine, urea formaldehyde resin, hydrazine hydrate, tetracycline, Phenobarbital, caffeine, BR brown brown, phthalocyanine B, phthalocyanine Bx, monosodium glutamate a me nā huahana ʻē aʻe.

He hopena hoʻomālamalama ia i ka polishing kemika o ke kila a me ke kila kila, a hoʻohana ʻia e like me ka corrosion inhibitor i ka metala pickling, a me ka hoʻomākaukau ʻana i ka hopena hoʻonā palladium.
I ka ʻoihana, hoʻohana ʻia ia e like me ka mea maka no ka hana ʻana i ka resin urea formaldehyde, polyurethane a me ka resine Melamine. Keureaua wela a hiki i 200 ℃, hana ia melamine paʻa (ie cyanuric acid). ʻO nā hua o ka Cyanuric acid trichloroisocyanuric acid, sodium dichloroisocyanate, tri (2-hydroxyethyl) isocyanurate, tri (Allyl group) isocyanurate, tri (3,5-di-tert-butyl-4-hydroxybenzyl) isocyanate, tri Glycidol ether o isocyanic acid , a me ka melamine paʻakikī o ka cyanuric acid he nui nā noi nui. ʻO nā mea mua ʻelua he mau disinfectants kiʻekiʻe a me nā bleaches, me ka nui o ka mana hana ma mua o 80000 tons o trichloroisocyanuric acid ma ka honua holoʻokoʻa.
ʻO ka mea hoʻohaʻahaʻa koho no ka denitrification o ke kinoea exhaust combustion, a me ka urea automotive, nona ka 32.5% kiʻekiʻe-maʻemaʻe urea a me 67.5% wai deionized.
ʻO ka Selective Catalytic Reduction (SCR) exhaust post-treatment he ʻenehana e koho koho i ka hōʻemi ʻana o nā nitrogen oxides (NOx) i loko o ke kinoea hoʻoheheʻe automotive ma o ka hopena pyrolysis o ka amonia i hana ʻia e ka urea i loko o ka exhaust combustion. He kī a me ka ʻenehana koʻikoʻi no ka hōʻemi ʻana i nā mea ʻino e like me NOx i loko o nā kinoea hoʻopau puhi e like me nā paila a me nā ʻenekini diesel. ʻO ka ʻōnaehana SCR kahi ʻōnaehana pono e hoʻokō i nā kānāwai hoʻokuʻu koʻikoʻi o Hyundai Motor Company, e like me ka Euro IV/Euro V/Euro VI (national IV/national V/national VI).Urea kaʻaUa kapa ʻia ʻo AdBlue ma ʻEulopa a me DEF ma United States.

ʻO nā mea waiwai o nā plastics kūikawā, ʻoi aku ka Urea-formaldehyde, kekahi mau mea kanu lāʻau, mea hoʻomomona a me nā meaʻai meaʻai, hoʻololi i ka paʻakai antifreeze i hoʻopuehu ʻia ma ke alanui (ʻo ka pōmaikaʻi ʻaʻole ia e corrode metala), hoʻonui i ka ʻala o ka paka, e hāʻawi ana i ka ʻoihana Pretzel brown. , kekahi shampoo, mea hoʻomaʻemaʻe, mea hoʻohui o ka pūʻolo pahu hau kōkua mua (no ka mea, hana ka urea me ka wai e komo i ka wela), kaʻa. urea lapaʻau diesel engine, engine ʻO ke kinoea ʻōpala mai nā mea kanu wela hiki ke hōʻemi nui i ka nitrogen oxide, ka haku ʻana o ka mea hoʻolaha ua (paʻakai paʻakikī), hoʻohana ʻia e hoʻokaʻawale i ka paraffin (no ka mea hiki i ka urea ke hana i ka hui Inclusion), nā mea refractory, haku ʻana o ka wahie mīkini kaiapuni, haku mele. nā mea hoʻomaʻemaʻe niho, nā mea kanu kemika, nā mea kōkua koʻikoʻi no ke kala a me ka paʻi ʻana.