2-Methyl anthraquinone, yellow crystal, insoluble hauv dej, soluble hauv ethanol, ether, benzene thiab ethyl acetate. Nws yog tus nqi ntawm kev lag luam zoo heev. Nws tsis yog tsuas yog siv los ua cov tshuaj nruab nrab rau kev sib txuas ntawm qhov tsaus ntuj thiab siab - zoo dyes tab sis kuj yog ib qho khoom siv pulping zoo hauv cov txheej txheem papermaking. Nws kuj yog siv dav hauv tshuaj, tshuaj tua kab thiab ntau yam. Feem ntau 2-methyl anthraquinones yog 2-methyl anthraquinone thiab 2-ethyl anthraquinone. 2-methyl anthraquinone tuaj yeem hloov kho raws li qhov xav tau sib txawv los tsim cov phiaj xwm sib xyaw.
Kev siv 2-methyl anthraquinone feem ntau yog tshwm sim hauv cov hauv qab no:
Hais txog dyes:
Nws yog siv los tsim cov qib siab - cov xim dyes thiab cov khoom nruab nrab, yog li muaj qhov xav tau zoo rau cov khoom no raws li qhov ntxoov ntxoo. Ua ntej, 2-Methylanthraquinone yog chlorinated lossis nitrated, thiab tom qab ntawd muaj ntau yam anthraquinone dyes tuaj yeem ua ke. Kev txheeb cais qhia ntau pua ntawm anthraquinone dyes nrog cov nqi lag luam tseem ceeb thiab kev cia siab dav. Piv txwv li, ib txoj kev hluavtaws ntawm kev txo cov kub txiv kab ntxwv G ntuj dye tau tsim.
Cov kauj ruam tshwj xeeb yog raws li nram no:
(1) Cov tshuaj tiv thaiv bromination: 2-Methylanthraquinone yog siv los ua cov khoom siv raw thiab cov kuab tshuaj aprotic raws li qhov nruab nrab los ua cov kua bromine hauv qhov chaw tsis muaj zog alkali los tsim 1-Bromo-2-methyl anthraquinone;
(2) Coupling cov tshuaj tiv thaiv: noj 1-Bromo-2-methyl anthraquinone ua raw khoom, ntxiv cov catalyst thiab aprotic hnyav raws li ib tug nruab nrab, cov coupling cov tshuaj tiv thaiv yuav siv sij hawm qhov chaw los tsim diquinone C;
(3) Kaw - voj oxidation cov tshuaj tiv thaiv: nrog quinone C raws li cov khoom siv raw, nyob rau hauv cov kuab tshuaj ruaj khov tsim los ntawm lub hauv paus muaj zog thiab cawv hnyav, qhov kaw - lub voj teb tshwm sim ua ntej, thiab tom qab ntawd los ntawm huab cua oxidation cov tshuaj tiv thaiv kom tau txais cov xim qub ntawm cov kub txo qis -txiv kab ntxwv G. Cov txheej txheem txoj kev muaj tsawg dua los ntawm - cov khoom, tsawg ib puag ncig muaj kuab paug, siab dua cov tshuaj tiv thaiv tawm los, luv luv cov tshuaj tiv thaiv lub sij hawm thiab ntau yooj yim industrial ntau lawm
Synthetic method 1 ntawm 2-methyl anthraquinone -- anthracene oxidation method
Ntawm ob peb txoj kev hluavtaws uas twb muaj lawm ntawm alkyl anthraquinone hauv tsev thiab txawv teb chaws, txoj kev anthracene oxidation yog qhov ntsuab tshaj plaws; Kev siv atomic yog qhov siab tshaj plaws thiab feem ntau ib puag ncig -tus phooj ywg hluavtaws txoj kev. Nws cov txiaj ntsig tuaj yeem ncav cuag ntau dua 99 feem pua tsis muaj peb qhov pov tseg cov pa phem. Ntawm lawv, oxidant ntawm anthracene roj theem oxidation txoj kev siv tau oxygen, thiab yuav luag tag nrho cov alkyl anthracenes yuav hloov mus rau alkyl anthraquinone nyob rau hauv lub catalysis ntawm vanadium pentoxide. Lub purity ntawm alkyl anthraquinone tau los ntawm cov pa roj -theem oxidation ntawm anthracene yog siab heev, thiab cov khoom yuav raug tsim ncaj qha yam tsis muaj purification.
Anthracene kua-theem oxidation method, cov txheej txheem ntawm hluavtaws 2-methyl anthraquinone hmoov, siv cov poov tshuaj dichromate ua cov oxidant thiab tuaj yeem hnov txog li 100 degree C. qhov yuav tsum tau kub tsis siab, thiab cov xwm txheej yog me me, tab sis acidic tej yam kev mob yuav tsum tau. Ib qho ntawm cov dej khib nyiab yuav raug tsim tawm, tab sis nws tsawg dua li peb qhov pov tseg uas tsim los ntawm lwm txoj kev.