Diphenol tsis yog ib qho aromatic hydrocarbon vim nws muaj cov pa oxygen thiab yog ib qho aromatic derivative.
Kev lag luam 2-naphthol yog refined naphthol ua raw khoom, nrog 96-98% sulfuric acid sulfonation ntawm 2-naphthol sulfonic acid, thiab tom qab ntawd nrog sodium sulfite neutralization los tsim nws cov ntsev sodium, thiab tom qab ntawd nrog sodium hydroxide alkali fusion ntawm 2-naphthol sodium, tom qab ntawd nrog sulfuric acid acidification ntawm 2-naphthol cov khoom nyoos, tom qab boiling, ntxuav, ziab, decompressed distillation ntawm 2-naphthol cov khoom.
Qhov ua rau muaj kuab paug ntawm cov txheej txheem no yog qhov loj heev thiab qhov teeb meem kev tiv thaiv ib puag ncig yog qhov tseem ceeb dua.
Kev tsim cov tshuaj cyanamine hauv Asmeskas ntawm 2-isopropylnaphthalene ua ke ntawm acetone 2-naphthol txheej txheem, vim yog tus nqi ntawm kev tiv thaiv ib puag ncig thiab lwm yam laj thawj thiab tso tseg kev tsim khoom.
Tam sim no, cov teb chaws tseem ceeb ntawm 2-naphthol hauv ntiaj teb yog Tuam Tshoj, Is Nrias teb, Nyiv, Ltalis thiab qee lub teb chaws hauv Eastern Europe.
Tuam Tshoj pib tsim 2-naphthol xyoo 1957. Txij li xyoo 1980, thaum cov teb chaws tsim kho tau tso tseg kev tsim khoom ib qho tom qab ib qho, Tuam Tshoj tau dhau los ua tus neeg muab khoom tseem ceeb ntawm 2-naphthol.
Txij li xyoo 1990, kev ua lag luam 2-naphthol tau muaj kev nce thiab nqis ntau heev. Nyob rau xyoo tas los no, cov khoom tsim tawm txhua xyoo ntawm 8-100 txhiab tons tau khaws cia, thiab kev xa khoom kuj tau khaws cia kev loj hlob loj, nrog rau kev xa khoom ntawm 8,227 tons hauv xyoo 2005, 15,924 tons hauv xyoo 2006, thiab 15,307 tons txij lub Ib Hlis mus txog lub Kaum Hli 2007.
Kev siv 2-naphthol hauv Suav teb yog li 60% ntawm cov xim nruab nrab, 20% ntawm cov roj hmab ntxiv, 10% ntawm cov xim thiab cov xim, thiab 10% ntawm lwm yam.
Raws li qhov kev thov rau cov xim thiab cov xim pigments nce ntxiv, qhov kev thov rau 2-naphthol yuav nce ntxiv.
Kev txhim kho cov txheej txheem tsim khoom, txuag hluav taws xob thiab txo kev siv, txo peb qhov pov tseg lossis tsim cov txheej txheem ntxuav tshiab tau dhau los ua ib qho kev taw qhia tseem ceeb rau kev txhim kho tas mus li thiab noj qab haus huv ntawm kev lag luam tsim khoom 2-naphthol.
Qhov thib ob, daim ntawv thov hauv kev lag luam zas xim thiab pigment
Cov xim zas thiab cov xim nruab nrab yog cov chaw siv ntau tshaj plaws ntawm 2-naphthol hauv Suav teb. Qhov laj thawj tseem ceeb yog tias kev tsim cov xim nruab nrab tau dhau los ua kev hloov pauv thoob ntiaj teb. Piv txwv li, 2, 3 acids, J acid, γ acid, R acid thiab chromophenol AS yog cov khoom xa tawm tseem ceeb hauv Suav teb, suav txog ntau dua ib nrab ntawm tag nrho cov khoom tsim tawm hauv tsev.
Ntxiv rau kev tsim cov xim dyestuff thiab cov xim intermediates, 2-naphthol kuj tseem siv tau ua ib feem azo, thiab diazo compounds los tsim cov xim dyestuff 1,2, 3 acids.
2, 3 acidification lub npe scientific: 2-hydroxy-3-naphthic acid, nws txoj kev tsim yog [1]: 2-naphthol thiab sodium hydroxide tshuaj tiv thaiv, decompressed dehydration, tau txais 2-naphthol sodium, thiab tom qab ntawd tshuaj tiv thaiv nrog CO2 kom tau txais 2-naphthol thiab 2, 3 sodium ntsev, tshem tawm 2-naphthol, acidification, tau txais 2, 3 acid.
Tam sim no, cov txheej txheem tsim cov khoom tseem ceeb yog cov txheej txheem theem khov thiab cov txheej txheem kuab tshuaj, thiab cov txheej txheem kuab tshuaj yog qhov sib txawv ntawm kev txhim kho.
Cov xim pas dej nrog 2,3 acids ua cov khoom sib txuas yog synthesized los ntawm kev ua cov khoom diazo ua cov ntsev diazo, ua ke nrog 2,3 acids, thiab tom qab ntawd siv alkali hlau thiab alkali av hlau ntsev tuaj yeem hloov pauv mus rau hauv cov xim pas dej uas tsis yaj.
Lub chromatogram tseem ceeb ntawm 2,3 acid pas dej pigments yog lub teeb liab.
Piv txwv li: CI Pigment Liab 57:1, CI Pigment Liab 48:1, thiab lwm yam.
2, 3 cov kua qaub yog siv dav hauv kev tsim cov chromophenol series ntawm cov dej khov-dyed dyes. Hauv Dye Index ntawm xyoo 1992, 28 chromophenols tau synthesized los ntawm 2, 3 cov kua qaub.
Xim phenol AS series ntawm cov khoom sib txuas ntawm azo pigment, cov txheej txheem tsim ntawm hom xim no yog ua los ntawm diazo Cheebtsam diazonium ntsev ua ntej, thiab xim ntawm phenol sib txuas AS ib qho series ntawm derivatives, xws li AS cov khoom diazo tsuas muaj alkyl aromatic nplhaib, halogen, nitrocellulose, alkoxy pawg, xws li AS cov xim ib txwm tshwm sim los ntawm cov tshuaj tiv thaiv ntawm phenol AS ib qho series ntawm azo zas rau cov khoom sib txuas,
Piv txwv li, lub nplhaib aromatic ntawm diazo Cheebtsam kuj muaj cov pab pawg sulfonic acid, thiab chromophenol AS series derivatives, thiab tom qab ntawd cov ntsev ntawm alkali thiab alkali earth hlau tuaj yeem hloov pauv mus rau hauv cov xim tsis yaj hauv pas dej.
MIT-Ivy INDUSTRY tau cog lus rau cov xim thiab cov tshuaj intermediates rau ze li ntawm 20 xyoo, nrog kev ntshiab siab thiab tus nqi ncaj ncees, uas tau txais kev qhuas los ntawm cov neeg siv pigment hauv tsev thiab txawv teb chaws. Txhawm rau ua tsaug rau cov neeg siv coob rau lawv txoj kev hlub, peb lub tuam txhab cov qauv tuaj yeem muab rau cov neeg siv rau kev sim dawb, txais tos cov neeg siv los ntawm txhua lub voj voog ntawm lub zej zog tuaj tham txog kev koom tes!
Athena
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