Diphenol si hydrocarbon yonunkhira chifukwa imakhala ndi maatomu a okosijeni ndipo ndi yochokera kununkhira.
Industrial 2-naphthol ndi woyengedwa naphthol monga zopangira, ndi 96-98% sulfuric asidi sulfonation wa 2-naphthol sulfonic acid, ndiyeno ndi sodium sulfite neutralization kupanga sodium mchere wake, ndiyeno ndi sodium hydroxide alkali maphatikizidwe 2-naphthol sodium. , ndiye ndi sulfuric acid acidification ya 2-naphthol yaiwisi mankhwala, pambuyo otentha, kutsuka, kuyanika, decompressed distillation wa 2-naphthol mankhwala.
Kuipitsa kwa njirayi ndizovuta kwambiri ndipo vuto lachitetezo cha chilengedwe ndi lodziwika kwambiri.
American cyanamine chitukuko cha 2-isopropylnaphthalene ophatikizana kupanga acetone 2-naphthol ndondomeko, chifukwa cha mtengo wa chitetezo zachilengedwe ndi zifukwa zina ndipo anasiya kupanga.
Pakalipano, mayiko akuluakulu opanga 2-naphthol padziko lapansi ndi China, India, Japan, Italy ndi mayiko ena a kum'mawa kwa Ulaya.
China idayamba kupanga 2-naphthol mu 1957. Kuyambira m'ma 1980, maiko otukuka atasiya kupanga, China yakhala gawo lalikulu la 2-naphthol.
Kuyambira 1990, msika wa 2-naphthol wakumana ndi zovuta zambiri. M'zaka zaposachedwa, kutulutsa kwapachaka kwa matani 8-100,000 kwasungidwa, ndipo kutumiza kunja kwakhalabe kukula kwakukulu, ndikutumiza kunja kwa matani 8,227 mu 2005, matani 15,924 mu 2006, ndi matani 15,307 kuyambira Januware mpaka Okutobala 2007.
Kugwiritsiridwa ntchito kwa 2-naphthol ku China ndi pafupifupi 60% ya utoto wapakati, 20% ya zowonjezera mphira, 10% ya utoto ndi inki, ndi 10% ya ena.
Pamene kufunikira kwa utoto ndi utoto ukuwonjezeka, momwemonso kufunikira kwa 2-naphthol.
Kupititsa patsogolo ntchito yopangira, kupulumutsa mphamvu ndi kuchepetsa kugwiritsidwa ntchito, kuchepetsa zinyalala zitatu kapena kupanga njira yatsopano yoyeretsera kwakhala chitsogozo chofunikira pakukula kosalekeza komanso kwathanzi kwamakampani opanga 2-naphthol.
Chachiwiri, ntchito mu makampani utoto ndi pigment
Utoto ndi ma pigment intermediates ndi malo omwe amagwiritsidwa ntchito kwambiri ndi 2-naphthol ku China. Chifukwa chachikulu ndikuti kupanga zopangira utoto zakhala zikuchitika padziko lonse lapansi. Mwachitsanzo, 2, 3 acids, J acid, γ acid, R acid ndi chromophenol AS zonse ndizofunikira zotumiza kunja kwapakatikati ku China, zomwe zimawerengera theka la zotulutsa zonse zapakhomo.
Kuphatikiza pa kaphatikizidwe ka utoto ndi mitundu ya pigment, 2-naphthol itha kugwiritsidwanso ntchito ngati gawo la azo, ndi mankhwala a diazo kupanga utoto wa 1,2, 3 acid.
2, 3 acidification dzina la sayansi: 2-hydroxy-3-naphthic acid, njira yake kaphatikizidwe ndi [1]: 2-naphthol ndi sodium hydroxide anachita, decompressed madzi m'thupi, kupeza 2-naphthol sodium, ndiyeno anachita ndi CO2 kupeza 2- naphthol ndi 2, 3 sodium mchere, kuchotsa 2-naphthol, acidification, kupeza 2, 3 asidi.
Pakali pano, njira zazikuluzikulu za kaphatikizidwe ndi njira yolimba ya gawo ndi njira yosungunulira, ndipo njira yosungunulira ndiyomwe imachitika pachitukuko.
Inki ya m'nyanja yokhala ndi ma asidi a 2,3 monga zigawo zophatikizira imapangidwa poyamba kupanga zida za diazo kukhala mchere wa diazo, kuphatikiza ma asidi a 2,3, kenako kugwiritsa ntchito zitsulo zamchere ndi zamchere zamchere zamchere zimatha kusinthidwa kukhala utoto wosasungunuka wa nyanja.
Chromatogram yayikulu ya 2,3 acid Lake pigments ndi kuwala kofiyira.
Mwachitsanzo: CI Pigment Red 57:1, CI Pigment Red 48:1, etc.
2, 3 acids amagwiritsidwa ntchito kwambiri popanga utoto wa chromophenol wa utoto wopaka ayezi. Mumlozera wa Dye wa 1992, ma chromophenols 28 adapangidwa ndi 2,3 acid.
Mtundu phenol AS mndandanda wa kugwirizana zigawo zikuluzikulu za azo pigment, kupanga njira za mtundu uwu wa utoto amapangidwa kuchokera diazo chigawo diazonium mchere choyamba, ndi mtundu wa phenol kugwirizana AS mndandanda wa zotumphukira, monga AS zigawo diazo ali alilkyl onunkhira mphete, halogen, nitrocellulose, magulu alkoxy, monga AS mtundu wamba chifukwa cha zimene phenol AS mndandanda wa azo utoto zigawo zikuluzikulu,
Mwachitsanzo, mphete yonunkhira ya zigawo za diazo ilinso ndi magulu a sulfonic acid, ndi zotumphukira za chromophenol AS, kenako mchere wazitsulo zamchere ndi zamchere zapadziko lapansi zitha kusinthidwa kukhala utoto wosasungunuka wa nyanja.
MIT-Ivy INDUSTRY yakhala ikudzipereka ku utoto ndi mankhwala apakatikati kwa zaka pafupifupi 20, ndi chiyero chapamwamba komanso mtengo wabwino, womwe watamandidwa kwambiri ndi ogwiritsa ntchito pigment kunyumba ndi kunja. Pofuna kuthokoza ogwiritsa ntchito ambiri chifukwa cha chikondi chawo, zitsanzo za kampani yathu zitha kuperekedwa kwa ogwiritsa ntchito kuyesa kwaulere, olandila olandila ochokera m'magulu onse kuti abwere kudzakambirana za mgwirizano!
Athena
Kampani ya Mit-ivy industry
Whatsapp/wechat:+86 13805212761
ceo@mit-ivy.com