Diphenol haisi hydrocarbon inonhuwirira nekuti ine maatomu eokisijeni uye inonhuhwirira.
Industrial 2-naphthol inonatswa naphthol seyakagadzirwa, ine 96-98% sulfuric acid sulfonation ye2-naphthol sulfonic acid, uyezve nesodium sulfite neutralization kugadzira yayo sodium munyu, uyezve nesodium hydroxide alkali fusion ye2-naphthol sodium. , zvino ne sulfuric acid acidification ye 2-naphthol crude products, mushure mokuvira, kushambidza, kuomeswa, decompressed distillation ye 2-naphthol zvigadzirwa.
Kusvibiswa kwemaitiro aya kwakakomba uye dambudziko rekuchengetedzwa kwezvakatipoteredza rinonyanya kuoneka.
American cyanamine kuvandudzwa kwe2-isopropylnaphthalene yakasanganiswa kugadzirwa kweacetone 2-naphthol process, nekuda kwemutengo wekuchengetedza kwezvakatipoteredza uye zvimwe zvikonzero uye kumisa kugadzirwa.
Parizvino, nyika huru dzekugadzira 2-naphthol munyika iChina, India, Japan, Italy nedzimwe nyika muEastern Europe.
China yakatanga kugadzira 2-naphthol muna 1957. Kubva 1980s, sezvo nyika dzakabudirira dzakamira kugadzira imwe pashure peimwe, China yakava mutengesi mukuru we2-naphthol.
Kubva 1990, 2-naphthol musika wakasangana nekukwira nekudzika kukuru. Mumakore achangopfuura, kubuda kwegore kwe8-100 zviuru zvetani zvakachengetwa, uye kutengesa kunze kwenyika kwakachengetedza kukura kukuru, nekutengesa kunze kwe8,227 matani muna 2005, 15,924 matani muna 2006, uye 15,307 matani kubva munaJanuary kusvika Gumiguru 2007.
Kushandiswa kwe2-naphthol muChina kunosvika makumi matanhatu muzana edhayi yepakati, 20% yezvekuwedzera rabha, 10% yedhayi uye pigment, uye gumi muzana yevamwe.
Sezvo kudiwa kwedhayi uye pigment kunowedzera, ndizvo zvichaitawo kudiwa kwe2-naphthol.
Kuvandudza maitiro ekugadzira, kuchengetedza simba uye kuderedza kushandiswa, kuderedza marara matatu kana kugadzira nzira itsva yekuchenesa yave nzira yakakosha yekuenderera uye ine hutano kusimudzira kwe2-naphthol kugadzira indasitiri.
Chechipiri, kushandiswa muindasitiri yedhayi uye pigment
Dhayi uye pigment yepakati ndiyo nzvimbo huru dzekushandisa dze2-naphthol muChina. Chikonzero chikuru ndechekuti kugadzirwa kwedhayi dzepakati kwave kufambiswa pasi rose. Semuyenzaniso, 2, 3 acids, J acid, γ acid, R asidhi uye chromophenol AS zvese zvakakosha zvepakati zvinotengeswa kunze kwenyika muChina, zvichiverengera inopfuura hafu yezvese zvabuda mudzimba.
Pamusoro peiyo synthesis yedhayi uye pigment yepakati, 2-naphthol inogona zvakare kushandiswa seazo chikamu, uye diazo masanganiswa kugadzira dhayi 1,2, 3 acids.
2, 3 acidification zita resainzi: 2-hydroxy-3-naphthic acid, nzira yayo yekubatanidza ndeye [1]: 2-naphthol uye sodium hydroxide reaction, decompressed dehydration, kuwana 2-naphthol sodium, uyezve kuita ne CO2 kuwana 2- naphthol uye 2, 3 sodium munyu, bvisa 2-naphthol, acidification, tora 2, 3 acid.
Parizvino, nzira huru dzekubatanidza inzira yakasimba yechikamu uye nzira yekunyungudutsa, uye nzira yekunyungudutsa ndiyo yakajairika nzira yebudiriro.
Lake pigments ine 2,3 acids sezvikamu zvekubatanidza inogadzirwa nekutanga kugadzira diazo zvidimbu kuita diazo munyu, wakabatanidzwa ne2,3 acids, uyezve kushandisa alkali simbi uye alkali pasi simbi munyu inogona kushandurwa kuita isinganyunguke dhayi dzedhayi.
Iyo huru chromatogram ye2,3 asidhi dziva pigments mwenje dzvuku.
Somuenzaniso: CI Pigment Red 57:1, CI Pigment Red 48:1, nezvimwewo.
2, 3 acids inoshandiswa zvakanyanya mukugadzirwa kwechromophenol akatevedzana edhayi-akadhayiwa echando. MuDye Index ye1992, makumi maviri nemasere machromophenols akagadzirwa ne2, 3 acids.
Rudzi phenol AS nhevedzano yekubatanidza zvikamu zve azo pigment, nzira dzekugadzira dzerudzi urwu rwepende dzinogadzirwa kubva diazo chikamu diazonium munyu kutanga, uye ruvara rwe phenol coupling AS nhevedzano yezvinobvamo, senge AS izvo diazo zvikamu zvinongove nealkyl inonhuhwirira mhete, h
Semuenzaniso, mhete inonhuhwirira yezvikamu zvediazo zvakare ine sulfonic asidhi mapoka, uye chromophenol AS dzakatevedzana kubva, uyezve munyu wealkali uye alkali pasi simbi inogona kushandurwa kuita isinganyunguke dhayi dzedhayi.
MIT-Ivy INDUSTRY yakazvipira kune dhayi nemishonga yepakati kweanoda kusvika makore makumi maviri, nekuchena kwakanyanya uye mutengo wakanaka, uyo wakarumbidzwa zvakanyanya nevashandisi ve pigment kumba nekune dzimwe nyika. Kuti titende huwandu hukuru hwevashandisi nerudo rwavo, kambani yedu samples inogona kupihwa kune vashandisi yemahara muyedzo, vanogamuchira vashandisi kubva kumativi ese enzanga kuti vauye kuzokurukura kubatana!
Athena
Mit-ivy indasitiri kambani
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