Diphenol abụghị hydrocarbon na-esi ísì ụtọ n'ihi na o nwere ikuku oxygen na ọ bụ ihe na-esi ísì ụtọ.
A na-anụcha 2-naphthol ụlọ ọrụ naphthol dị ka akụrụngwa, yana 96-98% sulfuric acid sulfonation nke 2-naphthol sulfonic acid, wee jiri sodium sulfite neutralization mepụta nnu sodium ya, wee jiri sodium hydroxide alkali ngwakọta nke 2-naphthol sodium. , mgbe ahụ, na sulfuric acid acidification nke 2-naphthol crude ngwaahịa, mgbe esi, ịsa, ihicha, decompressed distillation nke 2-naphthol ngwaahịa.
Mmetọ nke usoro a dị oke njọ yana nsogbu nchekwa gburugburu ebe obibi pụtara ìhè.
American cyanamine mmepe nke 2-isopropylnaphthalene jikọtara mmepụta nke acetone 2-naphthol usoro, n'ihi na nke na-eri nke gburugburu ebe obibi nchebe na ihe ndị ọzọ na-akwụsị mmepụta.
Ka ọ dị ugbu a, mba ndị bụ isi na-emepụta 2-naphthol n'ụwa bụ China, India, Japan, Italy na ụfọdụ mba dị na Eastern Europe.
China malitere imepụta 2-naphthol na 1957. Ebe ọ bụ na 1980, ka mba ndị mepere emepe kwụsịrị mmepụta otu mgbe, China aghọwo onye na-ebubata 2-naphthol.
Kemgbe 1990, ahịa 2-naphthol enwetala nnukwu mgbago na mgbada. N'ime afọ ndị na-adịbeghị anya, a na-edobe mmepụta kwa afọ nke 8-100 puku tọn, na mbupụ ahụ anọgidewokwa na-enwe ọganihu dị ukwuu, na mbupụ nke 8,227 tọn na 2005, 15,924 tọn na 2006, na 15,307 tọn site na January ruo October 2007.
Nri nke 2-naphthol na China bụ ihe dịka 60% nke etiti agba agba, 20% nke ihe mgbakwunye roba, 10% nke agba na pigmenti, na 10% nke ndị ọzọ.
Dị ka ọchịchọ maka agbaji na pigmenti na-abawanye, otú ahụ ka a ga-achọ 2-naphthol.
Ịkwalite usoro mmepụta ihe, ịchekwa ike na ibelata oriri, ibelata ihe mkpofu atọ ma ọ bụ ịmepụta usoro nhicha ọhụrụ aghọwo ntụziaka dị mkpa maka mmepe na-aga n'ihu na ahụike nke ụlọ ọrụ mmepụta 2-naphthol.
Nke abụọ, ngwa na agba na pigmenti ụlọ ọrụ
Ndị na-agba agba na pigmenti etiti bụ mpaghara 2-naphthol kacha eri nri na China. Isi ihe kpatara ya bụ na mmepụta nke intermediates agba agba na-agafe n'ụwa nile. Dị ka ọmụmaatụ, 2, 3 acids, J acid, γ acid, R acid na chromophenol AS bụ ihe niile dị mkpa mbupụ n'etiti na China, na-aza ihe karịrị ọkara nke mkpokọta mmepụta ụlọ.
Na mgbakwunye na njikọ nke dyestuff na pigment intermediates, 2-naphthol nwekwara ike iji dị ka akụkụ azo, na diazo ogige iji mepụta dyestuff 1,2, 3 acids.
2, 3 acidification aha sayensị: 2-hydroxy-3-naphthic acid, usoro njikọ ya bụ [1]: 2-naphthol na sodium hydroxide mmeghachi omume, decompressed akpịrị ịkpọ nkụ, nweta 2-naphthol sodium, na mgbe ahụ mmeghachi omume na CO2 iji nweta 2- naphthol na 2, 3 sodium nnu, wepụ 2-naphthol, acidification, nweta 2, 3 acid.
Ka ọ dị ugbu a, isi usoro njikọ bụ usoro siri ike na usoro mgbaze, na usoro mgbaze bụ usoro mmepe n'ozuzu.
Ọdọ pigments na 2,3 acid dị ka njikọ aka mmiri na-synthesized site na mbụ na-eme diazo components n'ime diazo salts, tinyere 2,3 acids, na mgbe ahụ iji alkali metal na alkali ụwa metal salts nwere ike converted n'ime insoluble ọdọ mmiri esiji.
Isi chromatogram nke 2,3 ọdọ mmiri pigmenti bụ ìhè uhie.
Dịka ọmụmaatụ: CI Pigment Red 57: 1, CI Pigment Red 48: 1, wdg.
A na-eji acid 2,3 eme ihe n'ọtụtụ ebe na njikọ nke usoro chromophenol nke agba agba agba ice. N'ime Index Dye nke 1992, 28 chromophenols bụ 2, 3 acid mebere.
Agba phenol AS usoro njikọ njikọ nke azo pigmenti, ụzọ sịntetik nke ụdị agba a na-esi na diazo components diazonium nnu na mbụ, na agba nke phenol njikọ AS usoro nke usoro, dị ka diazo components nwere naanị alkyl aromatic mgbanaka. halogen, nitrocellulose, alkoxy dị iche iche, dị ka agba nkịtị sitere na mmeghachi omume nke phenol AS usoro agba azo maka ihe jikọtara ọnụ,
Dịka ọmụmaatụ, mgbanaka aromatic nke diazo components nwekwara otu sulfonic acid, yana usoro chromophenol AS, na mgbe ahụ, nnu nke alkali na alkali ụwa nwere ike ịgbanwe ka ọ bụrụ ihe eji esiji mmiri na-esighi ike.
MIT-Ivy INDUSTRY etinyela aka na akwa na ndị na-ahụ maka ọgwụ maka ihe fọrọ nke nta ka ọ bụrụ afọ 20, yana ịdị ọcha dị elu na ọnụahịa ziri ezi, nke ndị na-eji pigmenti na-eto ya nke ukwuu n'ụlọ na ná mba ọzọ. Iji kelee ọnụ ọgụgụ buru ibu nke ndị ọrụ maka ịhụnanya ha, enwere ike ịnye ndị ọrụ ihe nlele ụlọ ọrụ maka nnwale n'efu, nabata ndị ọrụ sitere na mpaghara niile ka ha bịa kparịta imekọ ihe ọnụ!
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